{"id":49226,"date":"2026-02-26T10:35:30","date_gmt":"2026-02-26T10:35:30","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=49226"},"modified":"2026-03-07T10:30:30","modified_gmt":"2026-03-07T10:30:30","slug":"api-650-vs-api-620","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/","title":{"rendered":"API 650\uacfc API 620 \uc911 \uc5b4\ub5a4 \uac83\uc744 \uc800\uc7a5 \ud0f1\ud06c\uc5d0 \uc0ac\uc6a9\ud574\uc57c \ud560\uae4c\uc694?"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\uc11d\uc720, \uac00\uc2a4 \ub610\ub294 \ud654\ud559 \ubb3c\uc9c8 \uc800\uc7a5\uc6a9 \uc6a9\uc811 \uac15\ucca0 \uc800\uc7a5 \ud0f1\ud06c\ub97c \uc120\ud0dd\ud560 \ub54c API 650\uacfc API 620 \uc911 \uc5b4\ub290 \uac83\uc744 \uc120\ud0dd\ud574\uc57c \ud558\ub294\uc9c0\uc5d0 \ub300\ud55c \uc9c8\ubb38\uc774 \uc790\uc8fc \ub098\uc635\ub2c8\ub2e4. \ub450 \ud45c\uc900 \ubaa8\ub450 \ubbf8\uad6d \uc11d\uc720 \ubc0f \uac00\uc2a4 \ud611\ud68c(API)\uc5d0\uc11c \uc81c\uc815\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><a href=\"https:\/\/www.api.org\/\"> <b>\ubbf8\uad6d \uc11d\uc720 \ud611\ud68c<\/b><\/a><span style=\"font-weight: 400;\"> \ud0f1\ud06c\ub97c \ub9cc\ub4dc\ub294 \ubc29\ubc95\ub3c4 \uc54c\ub824\ub4dc\ub9ac\uaca0\uc9c0\ub9cc, \uac01 \ud0f1\ud06c\ub294 \uc11c\ub85c \ub2e4\ub978 \uc628\ub3c4\uc640 \uc555\ub825 \uc870\uac74\uc5d0 \ub9de\ucdb0 \uc81c\uc791\ub429\ub2c8\ub2e4. \uc62c\ubc14\ub978 \ud0f1\ud06c\ub97c \uc120\ud0dd\ud558\uba74 \uc608\uc0b0, \uc548\uc804, \uadf8\ub9ac\uace0 \uacf5\uc815\uc744 \uc624\ub7ab\ub3d9\uc548 \ubcf4\ud638\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\ubaa9\ucc28<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\ubaa9\ucc28 \ud1a0\uae00\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\ube44\ub140\uc7a5<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#What_Is_API_650_Standard\" >API 650 \ud45c\uc900\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#What_Is_API_620_Standard\" >API 620 \ud45c\uc900\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Side-by-Side_Comparison_API_650_vs_API_620\" >API 650\uacfc API 620 \ube44\uad50<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Applicable_Pressure_Range\" >\uc801\uc6a9 \uac00\ub2a5\ud55c \uc555\ub825 \ubc94\uc704<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Temperature_Range\" >\uc628\ub3c4 \ubc94\uc704<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-2\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-2\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Scope_and_Purpose_of_Standards\" >\ud45c\uc900\uc758 \ubc94\uc704 \ubc0f \ubaa9\uc801<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-3\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-3\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Tank_Configuration_Geometry\" >\ud0f1\ud06c \uad6c\uc131 \ubc0f \ud615\uc0c1<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-4\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-4\" >API 620:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Typical_Tank_Sizes\" >\uc77c\ubc18\uc801\uc778 \ud0f1\ud06c \ud06c\uae30<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-5\" >API 650<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Fabrication_Erection\" >\uc81c\uc791 \ubc0f \uc124\uce58<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-6\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-5\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Materials_Allowed\" >\ud5c8\uc6a9 \uc7ac\ub8cc<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-7\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-6\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Inspection_and_Testing_Standards\" >\uac80\uc0ac \ubc0f \uc2dc\ud5d8 \uae30\uc900<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-8\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-7\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Roof_Closure_Types\" >\uc9c0\ubd95 \ubc0f \ub9c8\uac10 \uc720\ud615<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-9\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-8\" >API 620<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Application_Industry_Use\" >\uc801\uc6a9 \ubd84\uc57c \ubc0f \uc0b0\uc5c5 \ud65c\uc6a9<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650-10\" >API 650<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620-9\" >API 620<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650_vs_API_620_%E2%80%93_Quick_Comparison_Table\" >API 650\uacfc API 620 \ube44\uad50\ud45c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_650_vs_API_620_%E2%80%93_Which_One_Is_Best\" >API 650\uacfc API 620 \uc911 \uc5b4\ub290 \uac83\uc774 \ub354 \uc88b\uc744\uae4c\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#FAQs\" >\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Can_API_620_tanks_work_when_the_pressure_outside_is_normal\" >\uc678\ubd80 \uc555\ub825\uc774 \uc815\uc0c1\uc77c \ub54c API 620 \ud0f1\ud06c\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#API_620_or_API_650_Which_costs_less\" >API 620\uacfc API 650 \uc911 \uc5b4\ub290 \uac83\uc774 \ub354 \uc800\ub834\ud560\uae4c\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Is_it_possible_to_change_an_API_650_tank_to_an_API_620_tank\" >API 650 \ud0f1\ud06c\ub97c API 620 \ud0f1\ud06c\ub85c \ubcc0\uacbd\ud558\ub294 \uac83\uc774 \uac00\ub2a5\ud560\uae4c\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#How_are_inspections_done_for_API_620_and_API_650_the_same\" >API 620\uacfc API 650\uc758 \uac80\uc0ac \ubc29\uc2dd\uc740 \uc5b4\ub5bb\uac8c \ub3d9\uc77c\ud55c\uac00\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Can_API_620_and_API_650_be_used_together\" >API 620\uacfc API 650\uc744 \ud568\uaed8 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Do_radiography_tests_have_to_be_done_for_API_620\" >API 620\uc744 \ucde8\ub4dd\ud558\ub824\uba74 \ubc29\uc0ac\uc120 \uac80\uc0ac\ub97c \ubc18\ub4dc\uc2dc \ud574\uc57c \ud558\ub098\uc694?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Does_temperature_play_a_role_in_choosing_between_API_620_and_650\" >API 620\uacfc 650 \uc911 \ud558\ub098\ub97c \uc120\ud0dd\ud560 \ub54c \uc628\ub3c4\uac00 \uc601\ud5a5\uc744 \ubbf8\uce60\uae4c\uc694?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/#Get_Customized_Storage_Tanks_from_KDM_Steel\" >KDM \uc2a4\ud2f8\uc5d0\uc11c \ub9de\ucda4\ud615 \uc800\uc7a5 \ud0f1\ud06c\ub97c \uc8fc\ubb38\ud558\uc138\uc694<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_API_650_Standard\"><\/span><b>API 650 \ud45c\uc900\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49228\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-89.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-89.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-89-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-89-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-89-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \ub300\uae30\uc555\uc5d0 \uac00\uae4c\uc6b4 \uc555\ub825\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uc6a9\uc811 \uc800\uc7a5 \ud0f1\ud06c\uc758 \uc124\uacc4 \ubc0f \uc81c\uc791 \ubc29\ubc95\uc5d0 \ub300\ud55c \ud45c\uc900\uc785\ub2c8\ub2e4. \uc8fc\ub85c \uc9c0\uc0c1\uc5d0 \uc124\uce58\ub418\uace0 \uc6d0\uc720, \ubb3c, \uc644\uc81c\ud488 \ub4f1\uc744 \uc800\uc7a5\ud558\ub294 \ud0f1\ud06c\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4. \uc774 \ud45c\uc900\uc740 \uc8fc\ub85c \uc801\uc808\ud55c \uc7ac\ub8cc \uc120\ud0dd, \ub0b4\ubd80 \uc555\ub825\uc774 \ub0ae\uc744 \ub54c \uc81c\ud488\uc758 \uc548\uc804\ud55c \uc800\uc7a5 \ubcf4\uc7a5, \uac80\uc0ac \ubc0f \uc2dc\ud5d8\uc5d0 \uad00\ud55c \ub0b4\uc6a9\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_API_620_Standard\"><\/span><b>API 620 \ud45c\uc900\uc774\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49229\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-90.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-90.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-90-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-90-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-90-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">API 620\uc740 \ub300\uaddc\ubaa8 \ud504\ub85c\uc81d\ud2b8\ub97c \uacc4\ud68d\ud558\uace0 \uad6c\ucd95\ud558\ub294 \ubc29\ubc95\uc744 \uc54c\ub824\uc90d\ub2c8\ub2e4.,<\/span><a href=\"https:\/\/www.kdmsteel.com\/ko\/\uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15-\ud0f1\ud06c-\uc6a9\uc811\/\"> <b>\uc6a9\uc811 \uc2a4\ud14c\uc778\ub9ac\uc2a4\uac15 \ud0f1\ud06c<\/b><\/a><span style=\"font-weight: 400;\"> \ub0b4\ubd80 \uc555\ub825\uc774 \ub0ae\uac70\ub098 \uc911\uac04 \uc815\ub3c4\uc778 \ud658\uacbd\uc5d0\uc11c \uc791\ub3d9\ud569\ub2c8\ub2e4. \ub0c9\uc7a5 \ub610\ub294 \ub0c9\ub3d9 \ubcf4\uad00\uc774 \ud544\uc694\ud55c \ubb3c\ud488\uc744 \ubcf4\uad00\ud558\ub294 \ub370 \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4,<\/span><b> LPG<\/b><span style=\"font-weight: 400;\"> \ub610\ud55c LNG\uc5d0\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. API 650\ubcf4\ub2e4 \ub354 \ub192\uc740 \uc124\uacc4 \uc751\ub825\uacfc \ub354 \uac00\ud639\ud55c \uc628\ub3c4 \uc870\uac74\uc744 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Side-by-Side_Comparison_API_650_vs_API_620\"><\/span><b>API 650\uacfc API 620 \ube44\uad50<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49230\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-91.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-91.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-91-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-91-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-91-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Applicable_Pressure_Range\"><\/span><b>\uc801\uc6a9 \uac00\ub2a5\ud55c \uc555\ub825 \ubc94\uc704<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \ub300\uae30\uc555 \ub610\ub294 \ub9e4\uc6b0 \ub0ae\uc740 \uc555\ub825\uc5d0\uc11c \uc561\uccb4\ub97c \uc800\uc7a5\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc77c\ubc18 \ub300\uae30\uc555\ubd80\ud130 \uc57d 2.5psig\uae4c\uc9c0\uc758 \uc555\ub825 \ubc94\uc704\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \ud0f1\ud06c\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4. \ub9ce\uc740 \uc815\uc720 \uacf5\uc7a5\uacfc \ub300\uc6a9\ub7c9 \uc800\uc7a5 \uc2dc\uc124\uc5d0\uc11c \uc561\uccb4 \uc800\uc7a5 \uc2dc \ub0b4\ubd80 \uc555\ub825\uc774 \uacfc\ub3c4\ud558\uac8c \uc0c1\uc2b9\ud558\uc9c0 \uc54a\ub3c4\ub85d \uc774\ub7ec\ud55c \ud0f1\ud06c\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. API 650\uc740 \ubb3c, \ub514\uc824, \uc6d0\uc720 \ubc0f \uae30\ud0c0 \uc720\uc0ac \uc81c\ud488\uc5d0 \ub300\ud574 \ube44\uc6a9 \ud6a8\uc728\uc801\uc774\uace0 \uc5c5\uacc4\uc5d0\uc11c \uc778\uc815\ubc1b\ub294 \uc635\uc158\uc785\ub2c8\ub2e4. \ub610\ud55c \uc555\ub825 \uc124\uacc4 \ud504\ub85c\uc138\uc2a4\ub97c \ubcf5\uc7a1\ud558\uac8c \ub9cc\ub4e4\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620\uc740 \uc77c\ubc18\uc801\uc73c\ub85c 2.5psig \uc774\uc0c1, \uc124\uacc4 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \ucd5c\ub300 15psig \uc774\uc0c1\uae4c\uc9c0 \ub0b4\ubd80 \uc555\ub825\uc774 \ub0ae\uc740 \ud0f1\ud06c\uc5d0\uc11c \uc911\uac04 \uc815\ub3c4\uc758 \ud0f1\ud06c\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc8fc\ub85c LPG\uc640 \uac19\uc740 \ud718\ubc1c\uc131 \ub610\ub294 \uac00\uc555 \uc5f0\ub8cc\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc774 \ud45c\uc900\uc740 \ub354 \ub192\uc740 \uba64\ube0c\ub808\uc778 \uc751\ub825, \ub354 \uac15\ud55c \uc258 \ud50c\ub808\uc774\ud2b8 \ubc0f \ud5a5\uc0c1\ub41c \uad6c\uc870\uc801 \uac15\ub3c4\ub97c \ud5c8\uc6a9\ud558\uc5ec \ub0b4\ubd80 \uc555\ub825\uc774 \ub192\uc740 \ud658\uacbd\uc5d0\uc11c\ub3c4 \uc2dc\uc2a4\ud15c\uc774 \uc548\uc804\ud558\uac8c \uc791\ub3d9\ud560 \uc218 \uc788\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Temperature_Range\"><\/span><b>\uc628\ub3c4 \ubc94\uc704<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-2\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650 \ud0f1\ud06c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud574\ub2f9 \uc9c0\uc5ed\uc758 \uc77c\ubc18\uc801\uc778 \uc628\ub3c4\uc5d0\uc11c \uc791\ub3d9\ud558\ub3c4\ub85d \uc81c\uc791\ub429\ub2c8\ub2e4. \uc57d\uac04 \ub354 \ub192\uc740 \uc628\ub3c4\ub3c4 \uacac\ub51c \uc218 \uc788\uc9c0\ub9cc, \uadf9\uc800\uc628\uc774\ub098 \uadf9\ud55c\uc758 \ud658\uacbd\uc774 \ud544\uc694\ud55c \uc6a9\ub3c4\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc628\ub3c4\uac00 \uae09\uaca9\ud788 \ub5a8\uc5b4\uc9c0\uba74 \uc7ac\ub8cc\uc758 \uc778\uc131\uacfc \ud30c\uad34 \uc800\ud56d\uc131\uc774 \ub9e4\uc6b0 \uc911\uc694\ud574\uc9d1\ub2c8\ub2e4. API 650\uc740 \uc774\ub7ec\ud55c \ud55c\uacc4 \ub54c\ubb38\uc5d0 \ub9e4\uc6b0 \ucd94\uc6b4 \ud658\uacbd\uc5d0\ub294 \uc801\ud569\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-2\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620\uc740 \ub0c9\uc7a5 \ub610\ub294 \ub0c9\ub3d9 \ubcf4\uad00\uc774 \ud544\uc694\ud55c \uc6a9\ub3c4\uc5d0 \uc801\ud569\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. <\/span><b>LNG<\/b><span style=\"font-weight: 400;\"> \ubc0f \uae30\ud0c0 \uc561\ud654 \uac00\uc2a4. \uc800\uc628 \uc778\uc131, \ucda9\uaca9 \uc2dc\ud5d8 \ubc0f \ud2b9\uc815 \uc7ac\ub8cc \uc0ac\uc6a9\uc5d0 \ub300\ud55c \uc5c4\uaca9\ud55c \uaddc\uc815\uc774 \uc788\uc2b5\ub2c8\ub2e4. API 620\uc740 \uc601\ud558\uc758 \uc628\ub3c4\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uc2dc\uc124\uc758 \uad6c\uc870\ubb3c\uc774 \ud30c\uc190\ub418\uac70\ub098 \ucde8\uc131\ud654\ub418\ub294 \uac83\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud55c \uc911\uc694\ud55c \uc57c\uae08\ud559\uc801 \ubcf4\ud638 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Scope_and_Purpose_of_Standards\"><\/span><b>\ud45c\uc900\uc758 \ubc94\uc704 \ubc0f \ubaa9\uc801<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-3\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \uc9c0\uc0c1\uc5d0 \uc124\uce58\ub418\ub294 \ub300\ud615 \ub300\uae30\uc555 \uc800\uc7a5 \ud0f1\ud06c\uc758 \uc124\uacc4, \uac74\uc124, \uac80\uc0ac \ubc0f \uc2dc\ud5d8\uc5d0 \uad00\ud55c \ud45c\uc900\uc785\ub2c8\ub2e4. \uc774 \ud45c\uc900\uc740 \uc804 \uc138\uacc4\uc801\uc73c\ub85c \uc11d\uc720 \ubc0f \uc561\uccb4 \uc800\uc7a5 \uc2dc\uc124 \uac74\uc124 \uae30\uc220\uc5d0 \ub300\ud55c \uae30\uc900\uc744 \uc81c\uc2dc\ud569\ub2c8\ub2e4. API 650\uc740 \uc804 \uc138\uacc4\uc801\uc73c\ub85c \uc778\uc815\ubc1b\uace0 \uc788\uc73c\uba70 \ud45c\uc900\uc774 \uac04\ub2e8\ud558\uae30 \ub54c\ubb38\uc5d0 \uc815\uc720 \uc2dc\uc124, \ud130\ubbf8\ub110 \ubc0f \uc0b0\uc5c5\uc6a9 \uc800\uc7a5 \uc2dc\uc124\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-3\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620\uc740 \uacf5\uae30 \ud0f1\ud06c \uc678\uc5d0\ub3c4 \uace0\uc555 \ubc0f \uc800\uc628\uc5d0\uc11c \uc791\ub3d9\ud558\ub294 \uc6a9\uae30\ub97c \ud3ec\ud568\ud569\ub2c8\ub2e4. \ub610\ud55c \uc751\ub825 \ud574\uc11d\uc744 \uc704\ud55c \ub354\uc6b1 \ubc1c\uc804\ub41c \ubc29\ubc95, \uc811\ud569\ubd80 \ud6a8\uc728\uc5d0 \ub300\ud55c \ub354\uc6b1 \uc5c4\uaca9\ud55c \uaddc\uc815, \uadf8\ub9ac\uace0 \ud5a5\uc0c1\ub41c \ud488\uc9c8 \uad00\ub9ac\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud2b9\uc9d5 \ub355\ubd84\uc5d0 API 620\uc740 \ub354\uc6b1 \uac00\ud639\ud55c \ud658\uacbd\uc5d0\uc11c \uc791\ub3d9\ud574\uc57c \ud558\ub294 \uc11d\uc720 \ud50c\ub79c\ud2b8 \ubc0f \uac00\uc2a4 \ucc98\ub9ac \ud50c\ub79c\ud2b8\uc5d0\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tank_Configuration_Geometry\"><\/span><b>\ud0f1\ud06c \uad6c\uc131 \ubc0f \ud615\uc0c1<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-4\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">\ub300\ubd80\ubd84\uc758 API 650 \ud0f1\ud06c\ub294 \uc9c1\uc120\ud615 \uc6d0\ud1b5\ud615\uc774\uba70 \ubc14\ub2e5\uc774 \ud3c9\ud3c9\ud558\uc5ec \ud604\uc7a5 \uc124\uce58\uac00 \uc6a9\uc774\ud569\ub2c8\ub2e4. \uc81c\ud488\uc758 \ubd88\uc548\uc815\uc131\uc5d0 \ub530\ub77c \uc9c0\ubd95 \uc124\uacc4\ub294 \uace0\uc815\uc2dd \uc9c0\ubd95, \ubd80\uc720\uc2dd \uc9c0\ubd95 \ub610\ub294 \uac1c\ubc29\ud615 \uc9c0\ubd95 \ub4f1 \ub2e4\uc591\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud615\ud0dc\ub294 \uc124\uacc4\uc758 \ub2e8\uc21c\uc131\uc744 \uc720\uc9c0\ud558\uace0 \ud6a8\uc728\uc131\uc744 \ub192\uc774\uba70 \ub300\uae30 \uc911 \uacf5\uae30\ub97c \ub300\ub7c9 \uc800\uc7a5\ud558\ub294 \ub370 \ub4dc\ub294 \ube44\uc6a9\uc744 \uc808\uac10\ud558\ub294 \ub370 \uc911\uc810\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-4\"><\/span><b>API 620:<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620 \ud45c\uc900\uc5d0 \ub530\ub77c \uc81c\uc791\ub41c \ud0f1\ud06c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud0f1\ud06c \ub0b4\ubd80 \uc555\ub825\uc744 \uacac\ub51c \uc218 \uc788\ub3c4\ub85d \ub3d4\ud615 \uc9c0\ubd95\uc774\ub098 \ub0b4\uc555\uc131 \uc0c1\ub2e8\ubd80\ub97c \uac16\ucd94\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0, \uc678\ud53c\ud310\uc740 \ub354 \ud06c\uace0 \uac15\uc131\uc774 \ub192\uc544 \ub354 \ub192\uc740 \uc751\ub825\uc744 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf9\uc800\uc628 \ud0f1\ud06c\uac00 \uc800\uc628\uc5d0\uc11c \uc791\ub3d9\ud558\ub3c4\ub85d \ud558\uae30 \uc704\ud574, \ud0f1\ud06c \uc790\uccb4\uc758 \ud615\uc0c1\uc5d0 \ub2e8\uc5f4 \uc2dc\uc2a4\ud15c\uacfc \ud2b9\uc218\uce35\uc774 \ub0b4\uc7a5\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Typical_Tank_Sizes\"><\/span><b>\uc77c\ubc18\uc801\uc778 \ud0f1\ud06c \ud06c\uae30<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-5\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650 \ud0f1\ud06c\ub294 \uc18c\ud615 \uacf5\uc815 \ud0f1\ud06c\ubd80\ud130 10\ub9cc \ubc30\ub7f4 \uc774\uc0c1\uc744 \uc800\uc7a5\ud560 \uc218 \uc788\ub294 \ucd08\ub300\ud615 \uc6d0\uc720 \uc800\uc7a5 \ud0f1\ud06c\uae4c\uc9c0 \ub2e4\uc591\ud55c \uc6a9\ub7c9\uc758 \uc624\uc77c\uc744 \uc800\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud06c\uae30\ub97c \uc870\uc808\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc555\ub825 \uad00\ub828 \uc124\uacc4 \ube44\uc6a9\uc744 \ucd94\uac00\ub85c \uc9c0\ubd88\ud558\uc9c0 \uc54a\uace0\ub3c4 \ub9ce\uc740 \uc591\uc758 \uacf5\uae30\ub97c \uc800\uc7a5\ud574\uc57c \ud558\ub294 \uc815\uc720 \uacf5\uc7a5\uc774\ub098 \ub300\uaddc\ubaa8 \uc800\uc7a5 \uc2dc\uc124\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p><b>API 620<\/b><\/p>\n<p><span style=\"font-weight: 400;\">\uc774\ub7ec\ud55c \ud0f1\ud06c\ub294 \ub9e4\uc6b0 \ud06c\uac8c \uc81c\uc791\ub418\uc9c0\ub9cc, \ub300\uc6a9\ub7c9 \uc800\uc7a5 \uacf5\uac04\uacfc \ub0b4\ubd80 \uc555\ub825 \ub610\ub294 \uc800\uc628 \uc11c\ube44\uc2a4\uac00 \ud544\uc694\ud560 \ub54c \uc120\ud0dd\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc774\uc720\ub85c API 620\uc740 \ud06c\uace0 \uacac\uace0\ud574\uc57c \ud558\ub294 LNG \ubc0f LPG \ud0f1\ud06c\ub97c \uc81c\uc791\ud558\ub294 \ub370 \uac00\uc7a5 \uc801\ud569\ud55c \ud45c\uc900\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Fabrication_Erection\"><\/span><b>\uc81c\uc791 \ubc0f \uc124\uce58<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-6\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc5d0 \ub530\ub978 \uc81c\uc791\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ud604\uc7a5\uc5d0\uc11c \uac15\ud310\uc744 \ub0a9\ub55c\ud558\uc5ec \uc774\ub8e8\uc5b4\uc9d1\ub2c8\ub2e4. \ud0f1\ud06c \uc124\uce58 \uacfc\uc815\uc740 \ub300\ubd80\ubd84\uc758 \ud0f1\ud06c \uc81c\uc870\uc5c5\uccb4\uc5d0\uc11c \uc798 \uc54c\ub824\uc838 \uc788\uace0 \uc0ac\uc6a9\ud558\ub294 \ubc29\uc2dd\uc785\ub2c8\ub2e4. \ud45c\uc900\ud654\ub41c \uac80\uc0ac \ubc0f \uc2dc\ud5d8 \ubc29\ubc95\uc740 \uc81c\uc791 \uacfc\uc815\uc744 \uac00\uc18d\ud654\ud558\uace0 \ud504\ub85c\uc81d\ud2b8 \uc77c\uc815\uc744 \uad00\ub9ac\ud558\uba70 \ucd1d \uc81c\uc791 \ube44\uc6a9\uc744 \uc808\uac10\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-5\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620 \uaddc\uaca9\uc5d0 \ub530\ub978 \uad6c\uc870\ubb3c \uc81c\uc791\uc5d0\ub294 \ub354 \ub192\uc740 \uc555\ub825\uacfc \uc751\ub825\uc774 \uc791\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0 \ub354\uc6b1 \uc5c4\uaca9\ud55c \uc6a9\uc811 \ubc29\ubc95, \ud5a5\uc0c1\ub41c \ud488\uc9c8 \uad00\ub9ac, \uadf8\ub9ac\uace0 \ucca0\uc800\ud55c \uac80\uc0ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ub610\ud55c, \uc124\uce58 \uacfc\uc815\uc5d0\uc11c\ub3c4 \ub354 \ub9ce\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uad00\ub9ac\uc640 \ucca8\ub2e8 \uc2dc\ud5d8 \ubc29\ubc95\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc694\uc18c\ub4e4\ub85c \uc778\ud574 \uc791\uc5c5\uc774 \ub2e4\uc18c \ubcf5\uc7a1\ud574\uc9c0\uc9c0\ub9cc, \uc7a5\uae30\uc801\uc73c\ub85c\ub294 \ub354 \uc548\uc804\ud558\uace0 \uc2e0\ub8b0\ud560 \uc218 \uc788\ub294 \uad6c\uc870\ubb3c\uc774 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Materials_Allowed\"><\/span><b>\ud5c8\uc6a9 \uc7ac\ub8cc<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-7\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \uc8fc\ub85c \uc0c1\uc628 \ubc0f \uc0c1\uc555\uc5d0\uc11c \uc0ac\uc6a9 \uac00\ub2a5\ud55c \ud0c4\uc18c\uac15 \uc81c\ud488\uc744 \ud5c8\uc6a9\ud569\ub2c8\ub2e4. \uc7ac\uc9c8 \uc120\ud0dd\uc740 \uc6a9\uc811\uc131\uacfc \uc77c\uc0c1\uc801\uc778 \uc0ac\uc6a9\uc5d0 \ud544\uc694\ud55c \ub0b4\uad6c\uc131\uc744 \uae30\uc900\uc73c\ub85c \ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc800\uc628 \ud658\uacbd\uc774\ub098 \ud2b9\uc218 \uc0ac\uc6a9 \uc870\uac74\uc774 \uc694\uad6c\ub418\ub294 \uacbd\uc6b0\uc5d0\ub294 \uc120\ud0dd\uc758 \ud3ed\uc774 \uc881\uc544\uc9d1\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-6\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620\uc740 \uc800\uc628\uc5d0\uc11c \ub354\uc6b1 \uac15\ud55c \uac15\ub3c4\ub97c \uc9c0\ub2cc \uac15\uc7ac\uc640 \uac19\uc774 \ub354 \ud3ed\ub113\uc740 \uc81c\ud488 \uc0ac\uc6a9\uc744 \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc7ac\ub8cc\uc758 \ud3ed\ub113\uc740 \uc0ac\uc6a9 \ubc94\uc704\ub294 \uc800\uc628 \ub610\ub294 \ub0c9\ub3d9 \ubcf4\uad00\uc774 \ud544\uc694\ud55c \uc6a9\ub3c4\uc5d0 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774 \ud45c\uc900\uc740 \uace0\uc628\uc5d0\uc11c\ub3c4 \uc7ac\ub8cc\uac00 \uac15\ud558\uace0 \uc720\uc5f0\ud558\uba70 \uc27d\uac8c \ud30c\uc190\ub418\uc9c0 \uc54a\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Inspection_and_Testing_Standards\"><\/span><b>\uac80\uc0ac \ubc0f \uc2dc\ud5d8 \uae30\uc900<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-8\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \uacf5\ub3d9 \ubd84\ub958 \uccb4\uacc4\ub97c \uae30\ubc18\uc73c\ub85c \uc801\uc808\ud55c \uac80\uc0ac, \uc218\uc555 \uc2dc\ud5d8 \ubc0f \uc81c\ud55c\uc801\uc778 \ubc29\uc0ac\uc120 \uac80\uc0ac\ub97c \uc694\uad6c\ud569\ub2c8\ub2e4. \uc774 \uac80\uc0ac \ud504\ub85c\uadf8\ub7a8\uc740 \uc720\uc6a9\ud558\uace0 \ube44\uc6a9\ub3c4 \ub9ce\uc774 \ub4e4\uc9c0 \uc54a\uc73c\ubbc0\ub85c \ub300\uae30\uc555 \uc800\uc7a5 \ud0f1\ud06c\uc5d0\ub3c4 \uc801\uc6a9 \uac00\ub2a5\ud558\uba70 \uc11d\uc720 \uc0b0\uc5c5\uc758 \uc548\uc804 \uaddc\uc815\uc744 \uc900\uc218\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-7\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620\uc740 \ub354\uc6b1 \uc5c4\uaca9\ud55c \ube44\ud30c\uad34 \uac80\uc0ac \uae30\uc900\uacfc \ud2b9\ud788 \uc555\ub825 \uc720\uc9c0 \uc601\uc5ed\uc5d0\uc11c \ub354\uc6b1 \uad11\ubc94\uc704\ud55c \ubc29\uc0ac\uc120 \uac80\uc0ac\ub97c \uc694\uad6c\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac1c\uc120\ub41c \uac80\uc0ac \ubc29\ubc95\uc744 \ud1b5\ud574 \uc6a9\uc811 \uac15\ub3c4\uc640 \uad6c\uc870\ubb3c\uc774 \uc555\ub825 \ubc0f \uc800\uc628 \ud658\uacbd\uc5d0\uc11c \uc81c\ub300\ub85c \uc791\ub3d9\ud560 \uac83\uc774\ub77c\ub294 \ud655\uc2e0\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Roof_Closure_Types\"><\/span><b>\uc9c0\ubd95 \ubc0f \ub9c8\uac10 \uc720\ud615<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-9\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \uace0\uc815\uc2dd \uc9c0\ubd95, \uac00\ub3d9\uc2dd \uc9c0\ubd95, \uac1c\ubc29\ud615 \uc9c0\ubd95 \ub4f1 \ub2e4\uc591\ud55c \uc720\ud615\uc758 \uc9c0\ubd95\uc5d0 \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><a href=\"https:\/\/www.kdmsteel.com\/ko\/\uace0\uc815\uc2dd-\uc9c0\ubd95-\ud0f1\ud06c-vs-\ubd80\uc720\uc2dd-\uc9c0\ubd95-\ud0f1\ud06c\/\"> <b>\uace0\uc815\uc2dd \uc9c0\ubd95 \ud0f1\ud06c \ubc0f \ubd80\uc720\uc2dd \uc9c0\ubd95 \ud0f1\ud06c<\/b><\/a><span style=\"font-weight: 400;\"> \ud718\ubc1c\uc131 \uc5f0\ub8cc\uc758 \uacbd\uc6b0 \ubc30\ucd9c\ubb3c\uacfc \uc99d\uae30 \uc190\uc2e4\uc744 \ucd5c\uc18c\ud654\ud558\uae30 \uc704\ud574 \uc790\uc8fc \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub2e4\uc591\ud55c \uc9c0\ubd95 \uc720\ud615\uc744 \ud1b5\ud574 \ub2e4\uc591\ud55c \uc800\uc7a5 \ubc29\uc2dd\uacfc \ud658\uacbd\uc801 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub9de\ucdb0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-8\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 620 \uaddc\uaca9\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc555\ub825\uc744 \uacac\ub51c \uc218 \uc788\ub294 \ub3d4\ud615 \uc9c0\ubd95\uc744 \uc0ac\uc6a9\ud558\uba70, \uc774\ub294 \ud0f1\ud06c\uc758 \uc555\ub825 \uc81c\ud55c\uc758 \uc77c\ubd80\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc9c0\ubd95 \uc2dc\uc2a4\ud15c\uc740 \ud0f1\ud06c \ub0b4\ubd80\uc758 \uacf5\uae30\ub7c9\uc744 \uc548\uc804\ud558\uac8c \uc720\uc9c0\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. LPG \ubc0f \ub0c9\ub3d9 \uac00\uc2a4\ub97c \uc800\uc7a5\ud560 \ub54c, \uc9c0\ubd95 \uad6c\uc870\ub294 \ub0b4\uc6a9\ubb3c\uc758 \ub204\ucd9c\uc744 \ubc29\uc9c0\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Application_Industry_Use\"><\/span><b>\uc801\uc6a9 \ubd84\uc57c \ubc0f \uc0b0\uc5c5 \ud65c\uc6a9<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"API_650-10\"><\/span><b>API 650<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">API 650\uc740 \uc815\uc720\uc18c, \uc5f0\ub8cc \ud56d\uad6c, \uc218\ucc98\ub9ac \uc2dc\uc124, \uacf5\uc7a5 \ub4f1 \ub2e4\uc591\ud55c \uacf3\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uacf5\uae30\uc555 \uc0c1\ud0dc\uc5d0\uc11c \ubb3c, \ub514\uc824, \ud718\ubc1c\uc720, \uc6d0\uc720 \ub4f1\uc744 \uc800\uc7a5\ud558\ub294 \ub370 \uac00\uc7a5 \uc801\ud569\ud55c \uaddc\uaca9\uc785\ub2c8\ub2e4. \uc0ac\uc6a9\uc774 \uac04\ud3b8\ud558\uace0 \uc804 \uc138\uacc4\uc801\uc73c\ub85c \ub110\ub9ac \uc778\uc815\ubc1b\uace0 \uc788\uc5b4 \uc5ec\uc804\ud788 \uac00\uc7a5 \uc778\uae30 \uc788\ub294 \uc800\uc7a5 \ud0f1\ud06c \uaddc\uaca9\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"API_620-9\"><\/span><b>API 620<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">LNG \ud56d\ub9cc, LPG \uc800\uc7a5 \uc2dc\uc124, \uc11d\uc720\ud654\ud559 \uacf5\uc7a5 \ubc0f \uac00\uc2a4 \ucc98\ub9ac \uc2dc\uc124\uc5d0\uc11c API 620\uc740 \ucd5c\uc801\uc758 \uc120\ud0dd\uc785\ub2c8\ub2e4. \uc561\uccb4\ub97c \uac00\uc555 \ub610\ub294 \ub0c9\uc7a5 \uc0c1\ud0dc\ub85c \uc800\uc7a5\ud560 \ub54c, \uc774 \ud45c\uc900\uc740 \uad6c\uc870\ubb3c\uc774 \uc7a5\uae30\uac04 \uc548\uc804\ud558\uac8c \uc791\ub3d9\ud558\ub294 \ub370 \ud544\uc694\ud55c \uac15\ub3c4\uc640 \uc7ac\ub8cc\uc801 \uc2e0\ub8b0\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"API_650_vs_API_620_%E2%80%93_Quick_Comparison_Table\"><\/span><b>API 650\uacfc API 620 \ube44\uad50\ud45c<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<tbody>\n<tr>\n<td><b>\ub9e4\uac1c\ubcc0\uc218<\/b><\/td>\n<td><b>API 650<\/b><\/td>\n<td><b>API 620<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>\uc801\uc6a9 \uac00\ub2a5\ud55c \uc555\ub825 \ubc94\uc704<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\ub300\uae30\uc555 ~ \uc57d 2.5psig<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\uc57d 2.5psig \uc774\uc0c1, \uc800\uc555\uc5d0\uc11c \uc911\uc555<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\uc628\ub3c4 \ubc94\uc704<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\uc8fc\ubcc0 \uc628\ub3c4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\uc800\uc628 \ubc0f \uadf9\uc800\uc628<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\ubc94\uc704 \ubc0f \ubaa9\uc801<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\ub300\uae30 \uc800\uc7a5 \ud0f1\ud06c<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\uac00\uc555\uc2dd \ubc0f \uc800\uc628 \ud0f1\ud06c<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\ud0f1\ud06c \uad6c\uc131<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\uc218\uc9c1\ud615, \uc6d0\ud1b5\ud615, \ubc14\ub2e5\uc774 \ud3c9\ud3c9\ud55c<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\uac15\ud654\ub41c \uc678\ud53c, \ub3d4\ud615 \uc9c0\ubd95<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\uc77c\ubc18\uc801\uc778 \ud0f1\ud06c \ud06c\uae30<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\ub300\uc6a9\ub7c9 \ub300\uae30 \uc800\uc7a5<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\ub300\uc6a9\ub7c9 \uac00\uc555\uc2dd \ub610\ub294 \ub0c9\uc7a5\uc2dd<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\uc81c\uc791 \ubc0f \uc124\uce58<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\ud45c\uc900 \ud604\uc7a5 \uc6a9\uc811<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\ub354\uc6b1 \uc5c4\uaca9\ud55c \uc6a9\uc811 \ubc0f \uad00\ub9ac<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\ud5c8\uc6a9 \uc7ac\ub8cc<\/b><\/td>\n<td><a href=\"https:\/\/www.kdmsteel.com\/ko\/1066-\ud0c4\uc18c\uac15\/\"><b>1066 \ud0c4\uc18c\uac15<\/b><\/a><\/td>\n<td><span style=\"font-weight: 400;\">\ubcf4\ub2e4 \uad11\ubc94\uc704\ud55c \uc800\uc628 \uc7ac\ub8cc<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\uac80\uc0ac \ubc0f \ud14c\uc2a4\ud2b8<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\uc81c\ud55c\uc801 \ubc29\uc0ac\uc120 \ucd2c\uc601<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\uad11\ubc94\uc704\ud55c \ube44\ud30c\uad34 \uac80\uc0ac \ubc0f \ubc29\uc0ac\uc120 \ucd2c\uc601<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\uc9c0\ubd95 \ubc0f \ub9c8\uac10 \uc720\ud615<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\uace0\uc815\uc2dd \uc9c0\ubd95 \ub610\ub294 \ubd80\uc720\uc2dd \uc9c0\ubd95<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\ub0b4\uc555\uc131 \ub3d4\ud615 \uc9c0\ubd95<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>\uc801\uc6a9 \ubd84\uc57c \ubc0f \uc0b0\uc5c5 \ud65c\uc6a9<\/b><\/td>\n<td><span style=\"font-weight: 400;\">\uc815\uc720 \uc2dc\uc124, \ud130\ubbf8\ub110, \ubb3c \uc800\uc7a5 \uc2dc\uc124<\/span><\/td>\n<td><span style=\"font-weight: 400;\">LNG, LPG, \uc11d\uc720\ud654\ud559 \uc2dc\uc124<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"API_650_vs_API_620_%E2%80%93_Which_One_Is_Best\"><\/span><b>API 650\uacfc API 620 \uc911 \uc5b4\ub290 \uac83\uc774 \ub354 \uc88b\uc744\uae4c\uc694?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49231\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-92.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-92.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-92-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-92-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-92-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\uc5b8\uc81c\ub098 &quot;\ucd5c\uace0&quot;\ub77c\uace0 \ud560 \uc218 \uc788\ub294 \ub2e8 \ud558\ub098\uc758 \uc120\ud0dd\uc9c0\ub294 \uc5c6\uc2b5\ub2c8\ub2e4. API 650\uc740 \uc0c1\uc628 \ubc0f \ub300\uae30\uc555 \uc870\uac74\uc5d0\uc11c \uc81c\ud488\uc744 \ubcf4\uad00\ud558\ub294 \ub370 \uc801\ud569\ud569\ub2c8\ub2e4. \uc555\ub825\uc744 \uac00\ud558\uac70\ub098 \ub9e4\uc6b0 \ucc28\uac00\uc6b4 \uc561\uccb4\uc758 \uacbd\uc6b0 API 620\uc774 \ub354 \uc548\uc804\ud55c \uc120\ud0dd\uc785\ub2c8\ub2e4. \uc801\uc808\ud55c \ud45c\uc900\uc740 \uc81c\ud488\uc758 \uc885\ub958, \uc628\ub3c4, \uc555\ub825, \uadf8\ub9ac\uace0 \uc7a5\uae30\uac04 \uc0ac\uc6a9 \uc870\uac74\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4. \ucd08\uae30\uc5d0 \uc801\uc808\ud55c \ud45c\uc900\uc744 \ud3c9\uac00\ud558\uba74 \ube44\uc6a9\uc774 \ub9ce\uc774 \ub4dc\ub294 \uc7ac\uc124\uacc4\ub97c \ud53c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><b>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><b>API 650 \ud0f1\ud06c\ub97c \uadf9\uc800\uc628 \uc800\uc7a5\uc5d0 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/b><b><br \/>\n<\/b><span style=\"font-weight: 400;\"> \uc804\ud600 \uadf8\ub807\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. API 650 \ud0f1\ud06c\ub294 \uc800\uc628 \ud658\uacbd\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub3c4\ub85d \uc81c\uc791\ub41c \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4. \uc2e4\uc628\uc5d0 \uac00\uae4c\uc6b4 \uc628\ub3c4\uc5d0\uc11c\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_API_620_tanks_work_when_the_pressure_outside_is_normal\"><\/span><b>\uc678\ubd80 \uc555\ub825\uc774 \uc815\uc0c1\uc77c \ub54c API 620 \ud0f1\ud06c\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">API 620 \ud0f1\ud06c\ub294 \uc77c\ubc18 \uacf5\uae30\uc555\uc5d0\uc11c\ub3c4 \uc791\ub3d9\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc8fc\ub85c \ub192\uc740 \ub0b4\ubd80 \uc555\ub825\uc774 \uc608\uc0c1\ub420 \ub54c \uc120\ud0dd\ub429\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"API_620_or_API_650_Which_costs_less\"><\/span><b>API 620\uacfc API 650 \uc911 \uc5b4\ub290 \uac83\uc774 \ub354 \uc800\ub834\ud560\uae4c\uc694?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\ub300\ubd80\ubd84\uc758 \uacbd\uc6b0 API 650 \ud0f1\ud06c\uac00 \ub354 \uc800\ub834\ud569\ub2c8\ub2e4. \uc774\ub294 \uc124\uacc4, \uc7ac\ub8cc \ubc0f \uac80\uc0ac \uae30\uc900\uc774 \ub35c \uc5c4\uaca9\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_it_possible_to_change_an_API_650_tank_to_an_API_620_tank\"><\/span><b>API 650 \ud0f1\ud06c\ub97c API 620 \ud0f1\ud06c\ub85c \ubcc0\uacbd\ud558\ub294 \uac83\uc774 \uac00\ub2a5\ud560\uae4c\uc694?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">API 650\uc5d0\uc11c API 620\uc73c\ub85c \ubcc0\uacbd\ud558\ub294 \uac83\uc740 \uc27d\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub9ce\uc740 \uad6c\uc870\uc801 \uc7ac\uc124\uacc4\uc640 \uac15\ud654\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_are_inspections_done_for_API_620_and_API_650_the_same\"><\/span><b>API 620\uacfc API 650\uc758 \uac80\uc0ac \ubc29\uc2dd\uc740 \uc5b4\ub5bb\uac8c \ub3d9\uc77c\ud55c\uac00\uc694?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\uc544\ub2c8\uc694, \uac80\uc0ac \uaddc\uce59\uc740 \uaddc\uaca9\ub9c8\ub2e4 \ub2e4\ub985\ub2c8\ub2e4. API 620\uc740 \uc81c\ud488\uc5d0 \uc190\uc0c1\uc744 \uc8fc\uc9c0 \uc54a\ub294 \ubcf4\ub2e4 \ucca0\uc800\ud55c \ud14c\uc2a4\ud2b8\ub97c \uc694\uad6c\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_API_620_and_API_650_be_used_together\"><\/span><b>API 620\uacfc API 650\uc744 \ud568\uaed8 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\uae4c?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\uc544\ub2c8\uc694, \uc774 \ub450 \uae30\uc900\uc744 \uc11c\ub85c \ub300\uccb4\ud574\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc120\ud0dd \uc2dc \uc911\uc694\ud55c \uc694\uc18c\ub294 \uc124\uacc4 \uc555\ub825\uacfc \uc791\ub3d9 \uc628\ub3c4\ubfd0\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_radiography_tests_have_to_be_done_for_API_620\"><\/span><b>API 620\uc744 \ucde8\ub4dd\ud558\ub824\uba74 \ubc29\uc0ac\uc120 \uac80\uc0ac\ub97c \ubc18\ub4dc\uc2dc \ud574\uc57c \ud558\ub098\uc694?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\ub124, \ubc29\uc0ac\uc120 \uac80\uc0ac\ub294 API 620\uc5d0\uc11c \uc694\uad6c\ud558\ub294 \uc0ac\ud56d\uc785\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0, API 620\uc758 \uae30\uc900\uc774 API 650\ubcf4\ub2e4 \ub354 \uc5c4\uaca9\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_temperature_play_a_role_in_choosing_between_API_620_and_650\"><\/span><b>API 620\uacfc 650 \uc911 \ud558\ub098\ub97c \uc120\ud0dd\ud560 \ub54c \uc628\ub3c4\uac00 \uc601\ud5a5\uc744 \ubbf8\uce60\uae4c\uc694?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\ub124, \ub0a0\uc528\ub294 \ud45c\uc900\uc744 \uc120\ud0dd\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4. \uc800\uc628 \ub610\ub294 \ucd94\uc6b4 \uc628\ub3c4\uc5d0\uc11c \uc791\ub3d9\ud574\uc57c \ud558\ub294 \uc751\uc6a9 \ubd84\uc57c\uc5d0\ub294 \uc77c\ubc18\uc801\uc73c\ub85c API 620\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Get_Customized_Storage_Tanks_from_KDM_Steel\"><\/span><b>KDM \uc2a4\ud2f8\uc5d0\uc11c \ub9de\ucda4\ud615 \uc800\uc7a5 \ud0f1\ud06c\ub97c \uc8fc\ubb38\ud558\uc138\uc694<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49232\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-93.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-93.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-93-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-93-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-93-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\ud504\ub85c\uc81d\ud2b8\uc758 \ud544\uc694\uc5d0 \ub530\ub77c,<\/span> <span style=\"font-weight: 400;\">KDM\uc2a4\ud2f8<\/span><span style=\"font-weight: 400;\"> API 650 \ub610\ub294 API 620 \ud45c\uc900\uc5d0 \ub530\ub77c \uc124\uacc4\ub41c \uc800\uc7a5 \ud0f1\ud06c\ub97c \uc81c\uc791\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud504\ub85c\uc81d\ud2b8\ub97c \uc2dc\uc791\ud558\ub824\uba74 \ub2f9\uc0ac\uc758 \uc800\uc7a5 \ud0f1\ud06c \uc194\ub8e8\uc158, \uac15\ucca0 \uc81c\uc791 \uc11c\ube44\uc2a4, \ud488\uc9c8 \uad00\ub9ac \ud504\ub85c\uc138\uc2a4 \uc11c\ube44\uc2a4\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/span><a href=\"https:\/\/www.kdmsteel.com\/ko\/\uc5f0\ub77d\ud558\ub2e4\/\"> <b>\ubb38\uc758\ud558\uae30<\/b><\/a><span style=\"font-weight: 400;\"> \uc624\ub298 \ubc14\ub85c \ub9de\ucda4 \uacac\uc801\uc744 \ubc1b\uc544\ubcf4\uc138\uc694.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>API 650 vs. API 620 is often the question that comes up when choosing a welded steel holding tank for oil, gas or chemical service. Both standards come from the American Petroleum Institute and tell you how to build a tank, but they are for different temperatures and pressures. Making the right choice will protect [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":49227,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49226","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>API 650 vs API 620 \u2013 Which One Should You Choose for Your Storage Tank? - KDM Steel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kdmsteel.com\/ko\/api-650-vs-api-620\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"API 650 vs API 620 \u2013 Which One Should You Choose for Your Storage Tank? - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"API 650 vs. API 620 is often the question that comes up when choosing a welded steel holding tank for oil, gas or chemical service. 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