{"id":49234,"date":"2026-02-26T11:20:49","date_gmt":"2026-02-26T11:20:49","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=49234"},"modified":"2026-03-07T10:30:14","modified_gmt":"2026-03-07T10:30:14","slug":"between-tank-and-vessel","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/","title":{"rendered":"Top 10 Key Differences between Tank and Vessel"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">It is very important to know the difference between a tank and a vessel when planning storage or process equipment for an industrial building. People often use the two words to refer to the same thing, but they have different technical uses. This guide helps you to know about the tank and vessel, and also which one to choose according to your needs.<\/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\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/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=\"\u062a\u0628\u062f\u064a\u0644 \u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u062a\u0628\u062f\u064a\u0644<\/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\/ar\/between-tank-and-vessel\/#What_Is_a_Tank\" >What Is a Tank?<\/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\/ar\/between-tank-and-vessel\/#What_Is_a_Vessel\" >What Is a Vessel?<\/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\/ar\/between-tank-and-vessel\/#Key_Differences_between_Tank_and_Vessel\" >Key Differences between Tank and Vessel<\/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\/ar\/between-tank-and-vessel\/#1_Design_Purpose_and_Primary_Function\" >1. Design Purpose and Primary Function<\/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\/ar\/between-tank-and-vessel\/#Vessels\" >Vessels<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#2_Pressure_Handling_Capability\" >2. Pressure Handling Capability<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Vessels-2\" >Vessels<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#3_Design_Standards_and_Codes\" >3. Design Standards and Codes<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Vessels-3\" >Vessels<\/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\/ar\/between-tank-and-vessel\/#4_Construction_Complexity\" >4. Construction Complexity<\/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\/ar\/between-tank-and-vessel\/#Vessel\" >Vessel<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#5_Safety_and_Inspection_Requirements\" >5. Safety and Inspection Requirements<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Vessels-4\" >Vessels<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#6_Shape_and_Configuration\" >6. Shape and Configuration<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Vessels-5\" >Vessels<\/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\/ar\/between-tank-and-vessel\/#7_Internal_Components_and_Features\" >7. Internal Components and Features<\/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\/ar\/between-tank-and-vessel\/#Vessels-6\" >Vessels<\/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\/ar\/between-tank-and-vessel\/#8_Material_Selection\" >8. Material Selection<\/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\/ar\/between-tank-and-vessel\/#Vessels-7\" >Vessels<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#9_Typical_Applications\" >9. Typical Applications<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Vessels-8\" >Vessels<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#10_Compliance_and_safety_tanks_for_rules_and_laws\" >10. Compliance and safety tanks for rules and laws<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Tank\" >Tank<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Vessels-9\" >Vessels<\/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-25\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Summary_Table_of_Tank_vs_Pressure\" >Summary Table of Tank vs Pressure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Tank_vs_Vessel_%E2%80%93_Which_One_Is_Best\" >Tank vs Vessel \u2013 Which One Is Best?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#FAQs\" >\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Is_a_tank_a_kind_of_vessel\" >Is a tank a kind of vessel?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Are_tanks_always_stationary_structures\" >Are tanks always stationary structures?<\/a><\/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\/ar\/between-tank-and-vessel\/#Are_all_tanks_meant_to_work_like_pressure_vessels\" >Are all tanks meant to work like pressure vessels?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Should_the_walls_of_tanks_be_thicker_than_those_of_pressure_vessels\" >Should the walls of tanks be thicker than those of pressure vessels?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Are_ships_controlled_around_the_world\" >Are ships controlled around the world?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Where_do_you_usually_find_pressure_vessels\" >Where do you usually find pressure vessels?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.kdmsteel.com\/ar\/between-tank-and-vessel\/#Do_you_choose_different_materials_for_tanks_and_vessels\" >Do you choose different materials for tanks and vessels?<\/a><\/li><\/ul><\/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\/ar\/between-tank-and-vessel\/#Get_Your_Customized_Tanks_and_Vessels_by_KDM_Steel\" >Get Your Customized Tanks and Vessels by KDM Steel<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_a_Tank\"><\/span><b>What Is a Tank?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49235\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-94.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-94.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-94-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-94-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-94-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">\u0623 <\/span><a href=\"https:\/\/www.kdmsteel.com\/ar\/underground-storage-tank\/\"><span style=\"font-weight: 400;\">tank <\/span><\/a><span style=\"font-weight: 400;\">is usually a large container that is used to store gases or liquids, generally at room temperature or low pressure. Tanks can be found in chemical plants, water treatment plants and oil companies. Their main purpose is to store things, not to process or deal with high internal pressure.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_a_Vessel\"><\/span><b>What Is a Vessel?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49236\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-95.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-95.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-95-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-95-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-95-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">A vessel, which is also sometimes called a &#8220;<\/span><a href=\"https:\/\/www.kdmsteel.com\/ar\/stainless-steel-pressure-vessel\/\"><b>pressure vessel<\/b><\/a><span style=\"font-weight: 400;\">,&#8221; is designed to keep gases or liquids under pressure. Vessels are different from regular storage tanks because they are made to handle pressure loads from the inside or the outside. They are widely used in process industries like petrochemicals and power generation.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Key_Differences_between_Tank_and_Vessel\"><\/span><b>Key Differences between Tank and Vessel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49237\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-96.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-96.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-96-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-96-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-96-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Design_Purpose_and_Primary_Function\"><\/span><b>1. Design Purpose and Primary Function<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">A tank is often the best way to keep a lot of water, oil, chemicals, or other things. How much it can hold, how easy it is to keep up, and how stable the frame is all play a role in the design. We make<\/span><a href=\"https:\/\/www.kdmsteel.com\/ar\/wheat-storage-tank\/\"> <b>wheat storage tanks<\/b><\/a> <span style=\"font-weight: 400;\">at KDM Steel that are great for large-scale industrial storage where the pressure loads are low. Tanks are great when you just want to keep things inside and not worry about reaction or pressure.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">It is built so that vessels can work in certain settings. If you want to heat, cool, or split things under pressure, you need a vessel. It is safe for these units to handle stress, changes in temperature, and changes in internal pressure. Process factors that are good for performance can be used to make pressure vessels. Vessels often have extra parts like nozzles and supports to make them work better in real life.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Pressure_Handling_Capability\"><\/span><b>2. Pressure Handling Capability<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">Most tanks have very low pressure or the same pressure inside as outside. The walls of these tanks are not as thick as those of pressure tanks because they are not meant to withstand a lot of stress. The American Petroleum Institute made rules that atmospheric holding tanks must follow. These rules are called API 650. If the process does not need to keep the pressure up, a tank is generally less expensive and easier to build than a pressure vessel.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-2\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Vessels are built to handle strong forces both inside and outside of them. There are strict rules for construction, materials, and tests that are put out by the American Society of Mechanical Engineers in codes like<\/span><a href=\"https:\/\/inspectioneering.com\/tag\/asme+section+viii\"> <b>ASME Section VIII<\/b><\/a><span style=\"font-weight: 400;\">. The width of the wall, the quality of the weld, and the stress analysis are all carefully chosen. When safety under pressure is very important, a vessel has just the right amount of power.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Design_Standards_and_Codes\"><\/span><b>3. Design Standards and Codes<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">Tanks are often built to standards like API 620 or 650, which are based on the pressure and temperature. These rules make sure that buildings are safe to use while they are being stored and that they are in good shape. Designing tanks based on standards that are known all over the world makes it easy to meet the rules in many places and industries.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-3\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">When pressure tanks are sold in Europe, they have to follow stricter rules, such as ASME Section VIII or PED. Follow these rules to pick the right materials, join them, do non-destructive testing, and test their strength with water. In businesses that are regulated, ships must follow the rules and can be checked out by people who are allowed to do so.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Construction_Complexity\"><\/span><b>4. Construction Complexity<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Most of the time, making a tank is easy. The majority of the time, they are round with flat or cone-shaped ends. This is where the main things that are done are plate rolling, soldering, and finishing. Large tanks need careful planning, but they can usually figure out how much stress they are under without too much trouble. This makes it faster to build and put tanks in place.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessel\"><\/span><b>Vessel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">It takes more work to make a tank. Most of the time, you need support pads, thick plates, and heads that are set back. Part of the process is a deep look at stress and advanced welding methods. For uses that involve a lot of pressure and cannot afford to fail, precision making is needed.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Safety_and_Inspection_Requirements\"><\/span><b>5. Safety and Inspection Requirements<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">Every once in a while, tanks should be checked for leaks, rust, and base settlement. The Occupational Safety and Health Administration (OSHA) says that upkeep is very important. It is not always as strict with government rules and test times for tanks, though.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-4\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Pressure tanks need to be carefully checked. Some of these checks are non-destructive examination and hydraulic tests. Before they can start working, regulatory groups need to get permission and fill out paperwork. Stress systems need to be checked more often because they might be more dangerous.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_Shape_and_Configuration\"><\/span><b>6. Shape and Configuration<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">Most tanks are round, have flat sides, and tops that either stay in place or float. People often use horizontal tanks for smaller amounts. Their design puts a lot of weight on both how well they use space and how clean they are. As options for customizing, you can add insulation, linings on the inside, and protective coatings on the outside.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-5\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Vessels usually have cylinder-shaped bases with hemispherical or elliptical heads so that the pressure is spread out over a large area. What matters is the needs of the process, not whether it is vertical or horizontal. The idea is not just about holding space, but also about keeping pressure in check.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_Internal_Components_and_Features\"><\/span><b>7. Internal Components and Features<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">Most of the time, tanks do not have a lot of parts inside them. They might have mixers, level signs, or heating fans built in so they can be used when needed. Since storage is the main goal and not processing, the interior layout stays simple.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-6\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">A lot of vessels have divisions, trays, agitators, or internal coils. These parts help move heat, make chemical reactions happen, and separate things. The internal design is specific to the job and requires a lot of complicated engineering math.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_Material_Selection\"><\/span><b>8. Material Selection<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><b><br \/>\n<\/b> <span style=\"font-weight: 400;\">Tanks are generally made of carbon steel, stainless steel, or materials that are covered. This depends on what is being stored, like a<\/span><a href=\"https:\/\/www.kdmsteel.com\/ar\/1000-gallon-stainless-steel-tank\/\"> <b>1000-gallon stainless steel tank<\/b><\/a><b>.<\/b><span style=\"font-weight: 400;\"> When picking materials, it is very important that they do not rust and are cheap.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-7\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">The things that are used to build vessels need to be able to handle changes in temperature and high pressure. A lot of the time, alloys and special-grade steels that are very hard are used. Materials need to be certified and tracked to get governmental approval and ensure that operations are safe.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"9_Typical_Applications\"><\/span><b>9. Typical Applications<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><b>Tanks<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Tanks are used a lot in places like chemical storage yards, water treatment plants, and ports that store fuel. There are many things that are kept until they are sent or used in some other way. People own and share a lot of land with them.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-8\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Drug stores, power plants, factories, and chemical plants all use them all the time. They are in charge of processes that divide things, reactions that happen under pressure, and jobs that need to share heat to make things.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"10_Compliance_and_safety_tanks_for_rules_and_laws\"><\/span><b>10. Compliance and safety tanks for rules and laws<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4><span class=\"ez-toc-section\" id=\"Tank\"><\/span><b>Tank<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Protect the area around the tanks, stop any leaks, and make sure the building is strong to keep them safe. Rules are easier to understand than pressure tank codes, but not everywhere have the same rules. But it is still important to keep good records and look at them often.<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Vessels-9\"><\/span><b>Vessels<\/b><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">To be safe, pressure tanks around the world must follow rules and be checked by a third party. You need to get an ASME or<\/span><a href=\"https:\/\/single-market-economy.ec.europa.eu\/sectors\/pressure-equipment-and-gas-appliances\/pressure-equipment-sector\/pressure-equipment-directive_en\"> <b>PED mark<\/b><\/a><span style=\"font-weight: 400;\"> most of the time. Getting in trouble for breaking the rules can stop you from working and put your safety at great risk.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summary_Table_of_Tank_vs_Pressure\"><\/span><b>Summary Table of Tank vs Pressure<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<tbody>\n<tr>\n<td><b>Parameter<\/b><\/td>\n<td><b>Tank<\/b><\/td>\n<td><b>Vessel<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Primary Purpose<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Used mainly for the storage of liquids or gases<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Used for processing fluids, often under pressure<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Pressure Handling<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Operates at atmospheric or very low pressure<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Designed to handle high internal or external pressure<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Typical Name<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Commonly called a storage tank<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Often called<\/span><a href=\"https:\/\/www.kdmsteel.com\/ar\/stainless-steel-pressure-vessel\/\"><span style=\"font-weight: 400;\"> a stainless steel pressure vessel<\/span><\/a><\/td>\n<\/tr>\n<tr>\n<td><b>Design Codes<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Follows standards like API 650 \/ API 620<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Follows strict codes such as ASME Section VIII<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Wall Thickness<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Generally thin walls<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Thicker walls to withstand pressure<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Construction Complexity<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Simple construction, fewer calculations<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Complex construction, detailed stress analysis<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Internal Components<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Minimal internals (level gauge, mixer)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Multiple internals (trays, baffles, coils)<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Shape<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Mostly cylindrical with flat or conical bottoms<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cylindrical with elliptical or hemispherical heads<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Inspection Requirements<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Periodic inspection, less strict<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Frequent and strict inspections, certification required<\/span><\/td>\n<\/tr>\n<tr>\n<td><b>Typical Applications<\/b><\/td>\n<td><span style=\"font-weight: 400;\">Fuel storage, water tanks, chemical storage<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Refineries, chemical plants, power plants<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tank_vs_Vessel_%E2%80%93_Which_One_Is_Best\"><\/span><b>Tank vs Vessel \u2013 Which One Is Best?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49238\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-97.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-97.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-97-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-97-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-97-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">What you need to do will determine which choice is best for you. A tank is usually all you need to store a lot of things safely and cheaply. For any process that involves changes in pressure, temperature, or chemical reactions, you need a tank. It is best to look at load conditions, regulatory standards, and operational goals to find the best choice for your job.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><b>\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Is_a_tank_a_kind_of_vessel\"><\/span><b>Is a tank a kind of vessel?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A tank is a type of box that is usually used to store liquids or gases. But not every object is a tank; many of them do work with pressure or processes.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_tanks_always_stationary_structures\"><\/span><b>Are tanks always stationary structures?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Most tanks used in industry are fixed in place and do not move. But tanks that can be moved are also used to move things and store things for a short time.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_all_tanks_meant_to_work_like_pressure_vessels\"><\/span><b>Are all tanks meant to work like pressure vessels?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">No, tanks are made to work in high-pressure scenarios. A lot of containers are made to keep things at room temperature, mix them, or split them.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Should_the_walls_of_tanks_be_thicker_than_those_of_pressure_vessels\"><\/span><b>Should the walls of tanks be thicker than those of pressure vessels?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Store tanks do not need thick walls because they do not work under a lot of pressure. Thick walls are only used on tanks that are meant to handle high pressure or other special tasks.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_ships_controlled_around_the_world\"><\/span><b>Are ships controlled around the world?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes, many industrial ships follow rules from other countries, such as ASME and PED. These rules make sure that all places around the world are safe, that buildings are strong, and that people follow the rules.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Where_do_you_usually_find_pressure_vessels\"><\/span><b>Where do you usually find pressure vessels?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">There are a lot of pressure tanks in refineries and petrochemical companies. They are also often used in places that make power and chemicals.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_you_choose_different_materials_for_tanks_and_vessels\"><\/span><b>Do you choose different materials for tanks and vessels?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Yes, pressure tanks often need stronger metals that can stand up to high temperatures and stress. Some holding tanks are made of standard materials or carbon steel so they can be used for air service.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Get_Your_Customized_Tanks_and_Vessels_by_KDM_Steel\"><\/span><b>Get Your Customized Tanks and Vessels by KDM Steel<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49239\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-99.png\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-99.png 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-99-150x84.png 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-99-768x432.png 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/02\/ARTICLE-99-18x10.png 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Tanks and vessels may look the same, but they are used for very different things in engineering and have very different laws and safety requirements. Knowing these differences will help you avoid making mistakes in design that cost a lot of money. Talking to experienced makers will help you make sure that your tools meet both legal and practical needs. If you want to get customized and personalized tanks or vessels,<\/span> <b>\u0627\u062a\u0635\u0627\u0644<\/b> <span style=\"font-weight: 400;\">KDM Steel and get your customized product and pricing.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>It is very important to know the difference between a tank and a vessel when planning storage or process equipment for an industrial building. People often use the two words to refer to the same thing, but they have different technical uses. This guide helps you to know about the tank and vessel, and also [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":49240,"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-49234","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 v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Top 10 Key Differences between Tank and Vessel - 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\/ar\/between-tank-and-vessel\/\" \/>\n<meta property=\"og:locale\" content=\"ar_AR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top 10 Key Differences between Tank and Vessel - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"It is very important to know the difference between a tank and a vessel when planning storage or process equipment for an industrial building. 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