634 S35500 - ASTM A693-2013

Grade	634
USA UNS	S35500
Corresponding Standard	ASTM A693-2013 Precipitation-Hardening Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
Classification	Precipitation-Hardening Stainless Steel

634 Chemical Element Composition Content (%)

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

634 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Plate	Solid Solution Treatment				HRC ≤40
Thick Plate, Thin Plate, Steel Strips	Precipitation Hardening, 455°C	≥1310	≥1140	≥10
Thick Plate, Thin Plate, Steel Strips	Precipitation Hardening, 540℃	≥1170	≥1035	≥12	HRC ≥37

634 Corresponding Standards(Same grade name, different standards)

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