Grade A633 Grade A
Corresponding Standard ASTM A633/633M-2018
Normalized High-Strength Low-Alloy Structural Steel Plates
Classification Alloy Steel
A633 Grade A Chemical Element Composition Content (%)
Component C Si Mn P S Nb
Minimum Value - 0.15 1 - - -
Maximum Value 0.18 0.5 1.35 0.03 0.03 0.05
A633 Grade A Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
430~570 ≥290 (in 50mm)
≥23

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