SUS631-HR - JIS G 4311-2019

Grade	SUS631-HR
Corresponding Standard	JIS G 4311-2019 Heat-Resisting Steel Bars and Wire Rods
Classification	Precipitation-Hardening Stainless Steel
Properties	Corrosion Resistance
Density	7.93 g/cm³

SUS631-HR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Al
Minimum Value	-	-	-	-	-	16	6.5	0.75
Maximum Value	0.09	1	1	0.04	0.03	18	7.75	1.5

SUS631-HR Mechanical Properties

	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
Bar; d≤75mm	Solution Heat Treatment (S)	≥1030	≥380	≥20		≤229
Bar; d≤75mm	Precipitation Hardening (RH950)	≥1230	≥1175	≥4	≥10	≥388
Bar; d≤75mm	Precipitation Hardening (TH1050)	≥1140	≥960	≥5	≥25	≥363

SUS631-HR Corresponding Standards(Same grade name, different standards)

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