ASTM A533 Pressure Vessel And Boiler Steel Plate

ASTM A533/A533M is a standard specification for quenched and tempered alloy steel plates used in the construction of welded pressure vessels. These plates are available in both manganese-molybdenum and manganese-molybdenum-nickel types, and they must meet specific chemical, mechanical, and heat-treatment requirements.

• Chemical Composition Table of ASTM A533 Grades 

• Mechanical Properties Table of ASTM A533 Grades

Chemical Reaction Vessels

ASTM A533 Boiler and Pressure Vessel Steel Plate is used in synthesis reactions (such as ammonia synthesis towers in fertilizer plants and polymerization reactors in chemical plants). It needs to withstand high temperatures and pressures (e.g., the ammonia synthesis tower operates at a pressure of 30MPa and a temperature of 450℃) and medium corrosion (such as hydrogen and acid gases) to ensure no leakage or structural failure occurs during the reaction process.

Petrochemical Storage Tanks and Towers

ASTM A533 Low Temperature Pressure Vessel Steel Plate is used in storage tanks for crude oil, liquefied natural gas (LNG), and liquefied petroleum gas (LPG), as well as rectification towers and absorption towers in petroleum refining: normal temperature and pressure storage tanks (such as crude oil tanks); low-temperature storage tanks (such as LNG storage tanks, with temperatures as low as -162℃) require steel plates with excellent low-temperature toughness to avoid brittle fracture of steel at low temperatures; high-pressure hydrogenation towers (petrochemical hydrofining process).

Heat Exchange Vessels

ASTM A533 High-quality Boiler Steel Plate is used in equipment for medium heat exchange (such as shell-and-tube heat exchangers and plate heat exchangers). Their shells and tube sheets need to withstand alternating hot and cold shocks, ensure fatigue resistance, and avoid weld cracking caused by frequent temperature changes.

Metallurgical Industry

The "blast furnace hot blast stove" in steel plants (which stores high-temperature hot air, with a pressure of 0.5-1.5MPa and a temperature of 1200℃) uses high-temperature resistant ASTM A533 hot-rolled plate for its shell; the "autoclave" in non-ferrous metal smelting (such as the leaching autoclave in hydrometallurgical copper smelting) needs to be resistant to acid corrosion, and ASTM A533 pressure vessel steel plate is commonly used.

ASTM A533  Pressure Vessel Steel, ASTM A533  Pressure Vessel Steel Plate, ASTM A533 Boiler Steel Plate

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

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