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

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CNS CNS 631

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

Steel Garde:CNS 631
Type:Special Alloy
Country:China
Standard:CNS
Application:CNS standard precipitation hardening stainless steel

Relevant products:

17-7PH / 631 COIL Strip Sheet

17-7PH(631,UNS S1...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
1.2631	DIN	Germany
AISI 631	AISI	USA
ASTM 631	ASTM	USA
UNS S63198	UNS	USA
UNS S63198	UNS	USA
UNS S63199	UNS	USA
2.4631	DIN	Germany
SUS631	JIS	Japan
SUS631-CPS	JIS	Japan
STS631	KS	Korea
STS631	KS	Korea
CNS 631-CPS	CNS	China
416310	CSN	Czech Republic
16310	CSN	Czech Republic
V-631	ABNT	Brazil
CNS 631	CNS	China
631-CPS	CNS	China
SNC631H	CNS	China
SNC631	CNS	China
0Cr17Ni7Al	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	571～922	σb/MPa
Yield Strength	752	σ 0.2 ≥/MPa
Elongation	50	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	533～760	-
HRC	30	-

Physical Properties

Thermal expansion	24-63	e-6/K
Thermal conductivity	04-33	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1080-0421	째C
Density	7318-3344	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)
CNS 631 Special Alloy	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