A514 Grade H - ASTM A514/A514M-2018 - H2ABC

中文版

Grade	A514 Grade H
Corresponding Standard	ASTM A514/A514M-2018 Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding
Classification	Alloy Steel
Properties	Strength

A514 Grade H Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Ni	Mo	Ti ^①	V	B
板厚t≤50mm(2in.)	Minimum Value	0.12	0.2	0.95	-	-	0.4	0.3	0.2	-	0.03	0.0005
板厚t≤50mm(2in.)	Maximum Value	0.21	0.35	1.3	0.03	0.03	0.65	0.7	0.3	0.06	0.08	0.006

A514 Grade H Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
Plates; t≤20	Quenching and Tempering	760~895	≥690	≥18	≥40	235~293
Plates; 20<t≤65	Quenching and Tempering	760~895	≥690	≥18	≥40
Plates; 65<t≤150	Quenching and Tempering	690~895	≥620	≥16	≥50

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