A574 Grade 4137 G41370 - ASTM A574-2017 - H2ABC

中文版

Grade	A574 Grade 4137
USA UNS	G41370
Corresponding Standard	ASTM A574-2017 Alloy Steel Socket-Head Cap Screws
Classification	Alloy Steel

A574 Grade 4137 Chemical Element Composition Content (%)

	Component	C	Si	Mn	P	S	Cr	Mo
Heat Analysis	Minimum Value	0.35	0.15	0.7	-	-	0.8	0.15
Heat Analysis	Maximum Value	0.4	0.35	0.9	0.035	0.04	1.1	0.25

	Component	C	Si	Mn	P	S	Cr	Mo
Product Analysis	Minimum Value	0.33	0.13	0.67	-	-	0.75	0.13
Product Analysis	Maximum Value	0.42	0.37	0.93	0.04	0.045	1.15	0.27

A574 Grade 4137 Mechanical Properties

	Tensile Strength σ_b ksi	Yield Point σ_s ksi	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
d ≤ 0.5 (Full size)	≥180				HRC 39~44
0.5 < d < 1.0 (Full size)	≥170				37~44
d ≥ 1.0 (Full size)	≥170				37~44
d ≥ 1.0 (Machined)	≥170	≥153	≥10	≥35

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!