Type 634 S35500 - ASTM A1082/A1082M-2016

Grade	Type 634
USA UNS	S35500
Corresponding Standard	ASTM A1082/A1082M-2016 High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
Classification	Precipitation-Hardening Stainless Steel

Type 634 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	Nb
Minimum Value	0.1	-	0.5	-	-	15	4	2.5	0.07	0.1
Maximum Value	0.15	0.5	1.25	0.04	0.03	16	5	3.2	0.13	0.5

Type 634 Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
Age-hardened (H1000)	≥1170	≥1070	≥12	≥25	HRC ≥37
Solid Solution Treatment, Maintain at ≤ 73°C for at least 3 hours					HBW ≤363

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