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STS631CSP chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS631CSP

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KS STS631CSP

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This page is mainly introduced the STS631CSP chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS631CSP,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Cold rolled stainless steel strip for springs

Steel Garde:STS631CSP
Type:Stainless Steels
Country:Korea
Standard:KS
Standard Number:

ITEM Standard Number Descriptions

1 D 3534 (2002) Cold rolled stainless steel strip for springs
Metallographic Structure:Precipitation-Hardening
Application:Cold rolled stainless steel strip for springs

ITEM	Standard Number	Descriptions
1	D 3534 (2002)	Cold rolled stainless steel strip for springs

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS631	KS	Korea
STS631J1	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.09
Si		1.00
Mn		1.00
P		0.040
S		0.030
Cr	16.00	18.00
Ni	6.50	7.75
Mo
N
Al	0.75	1.50

Mechanical Properties

Tensile strength	223～262	σb/MPa
Yield Strength	983	σ 0.2 ≥/MPa
Elongation	55	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	130～612	-
HRC	30	-

Physical Properties

Thermal expansion	99-31	e-6/K
Thermal conductivity	98-52	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6307-5603	째C
Density	3808-3061	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)
STS631CSP 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