A579 Grade 52 - ASTM A 579-2004(R2014) - H2ABC

中文版

Grade	A579 Grade 52
Corresponding Standard	ASTM A 579-2004(R2014) Standard Specification for Superstrength Alloy Steel Forgings
Classification	Martensitic Stainless Steel

A579 Grade 52 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	Ti	W	V	Co	Al	Sn
Minimum Value	0.2	-	0.5	-	-	11	0.5	0.9	-	0.9	0.2	-	-	-
Maximum Value	0.25	0.5	1	0.025	0.025	12.5	1	1.25	0.05	1.25	0.3	0.25	0.05	0.04

A579 Grade 52 Mechanical Properties

	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Forgings	≥1210	≥965	≥12	≥45		By agreement
Forgings	≥1520	≥1100	≥10	≥40		By agreement
Forgings；Section size ≤ 50mm		≥965			Annealing ≤255
Forgings；Section size ≤ 50mm		≥1100			Annealing ≤255

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