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

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CNS 631CPS

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This page is mainly introduced the 631CPS chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 631CPS,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
CNS standard spring cold rolled stainless steel strip

Steel Garde:631CPS
Type:Stainless Steels
Country:China
Standard:CNS
Application:CNS standard spring cold rolled stainless steel strip

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	7.50
Al	0.75	1.50

Mechanical Properties

Tensile strength	208～118	σb/MPa
Yield Strength	654	σ 0.2 ≥/MPa
Elongation	60	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	980～228	-
HRC	30	-

Physical Properties

Thermal expansion	52-40	e-6/K
Thermal conductivity	67-13	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9777-1038	째C
Density	4999-4483	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)
631CPS 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