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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
AISI 4140 Low-Alloy High-Tensile Steel Plate
AISI 4140 Low-Alloy High-Tensile Steel Plate is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel plate- generally supplied hardened and tempered in the tensile range of 850 - 1000 MPA (condition T).
Pre hardened and tempered AISI 4140 Low-Alloy High-Tensile Steel Plate can be further surface hardened by flame or induction hardening and by nitride.
Chemical Composition of the AISI 4140 Low-Alloy High-Tensile Steel Plate:
Min. % Max %
Carbon 0.36 0.44
Silicon 0.10 0.40
Manganese 0.65 1.10
Chromium 0.75 1.20
Molybdenum 0.15 0.35
Phosphorous 0 0.04
Sulphur 0 0.04
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