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The demand for reliable materials in cryogenic service applications has increased significantly with the rapid growth of LNG terminals, industrial gas storage facilities, and low-temperature pressure vessels.2026-06-24
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As the global demand for liquefied natural gas (LNG) continues to grow, the need for reliable materials for cryogenic storage systems has become increasingly important.2026-06-18
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For engineers specifying materials for cryogenic pressure vessels, finding the balance between strength and ductility at sub-zero temperatures is challenging.2026-06-12
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In industries where equipment must operate reliably under freezing or cryogenic conditions, material selection becomes a matter of safety and structural integrity.2026-06-01
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While both ASTM A203 Grade B and ASTM A106 Grade B serve critical roles in industrial applications, they are fundamentally different in composition, purpose, and performance.2026-06-01
A36 steel
A36 steel is the most commonly used mild and hot-rolled steel. A36 steel has excellent welding properties and is suitable for grinding, punching, tapping, drilling and machining processes. Yield strength of A36 steel is less than that of cold roll C1018, thus enabling A36 steel to bend more readily than C1018. Normally, larger diameters in A36 steel are not produced since C1018 hot roll rounds are used.
A36 steel
Any standard carburizing and hardening methods of AISI 1018 steel is suitable for A36 steel.
A36 steel is subjected to the following processes:
Normalizing at 899°C – 954°C (1650°F-1750°F)
Annealing at 843°C – 871°C(1550°F-1600°F)
Stress relieving at 677°C – 927°C(1250°F-1700°F)
Carburizing at 899°C – 927°C (1650°F-1700°F)
Hardening at 788°C – 816°C(1450°F-1500°F)
The machinability rate of A36 steel is estimated to be 72%, and the average surface cutting feed of A36 steel is 120 ft/min. Machining of A36 steel is not as easy as that of AISI 1018 steel.
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