SUS631-HR - JIS G 4312-2019

Grade	SUS631-HR
Corresponding Standard	JIS G 4312-2019 Heat-Resistant Steel Plate, Sheet and Strip
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

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Plate, Strip	Solution heat treatment (S)	≤1030	≤380	≥20	≤192
Plates, Strips; t≤3	Precipitation Hardening (RH950)	≥1230	≥1030		HRC ≥40
Plate, Strip; t>3	Precipitation Hardening (RH950)	≥1230	≥1030	≥4	HRC ≥40
Plates, Strips; t≤3	Precipitation Hardening (TH1050)	≥1140	≥960	≥3	HRC ≥35
Plate, Strip; t>3	Precipitation Hardening (TH1050)	≥1140	≥960	≥5	HRC ≥35

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

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