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SUS 631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 631

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JIS SUS 631

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This page is mainly introduced the SUS 631 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 631,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Heat-resisting steel plate, sheet and strip

Steel Garde:SUS 631
Type:Stainless Steels
Country:Japan
Standard:JIS
Standard Number:

ITEM Standard Number Descriptions

1 G 4312 (2011) Heat-resisting steel plate, sheet and strip
Metallographic Structure:Precipitation-Hardening
Application:Heat-resisting steel plate, sheet and strip

ITEM	Standard Number	Descriptions
1	G 4312 (2011)	Heat-resisting steel plate, sheet and strip

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SUS 631	JIS	Japan
SUS 631	JIS	Japan
SUS 631	JIS	Japan
SUS 631	JIS	Japan
SUS 631 J1	JIS	Japan
SUS 631 J1	JIS	Japan
SUS 631-CSP	JIS	Japan
SUS 631J1-WPC	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.09
Si		1.00
Mn		1.00
P		0.04
S		0.03
Cr	16.00	18.00
Ni	6.50	7.75
Mo
N
Al	0.75	1.50

Mechanical Properties

Tensile strength	749～106	σb/MPa
Yield Strength	640	σ 0.2 ≥/MPa
Elongation	55	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	709～982	-
HRC	30	-

Physical Properties

Thermal expansion	05-21	e-6/K
Thermal conductivity	51-22	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9846-1964	째C
Density	1314-9516	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
SUS 631 Stainless Steels	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk