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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.
Stainless steel bars

Steel Garde:CNS 631
Type:Stainless Steels
Country:China
Standard:CNS
Standard Number:

ITEM Standard Number Descriptions

1 G3067 Stainless steel bars
Metallographic Structure:Precipitation-Hardening
Application:Stainless steel bars

ITEM	Standard Number	Descriptions
1	G3067	Stainless steel bars

Relevant products:

17-7PH / 631 COIL Strip Sheet

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

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
0Cr17Ni7Al	GB	China
0Cr17Ni7Al	GB	China
S63198	AISI	USA
A 313 S17700	SAE	USA
A 564 S17700	SAE	USA
A 693 S17700	SAE	USA
A 705 S17700	SAE	USA
S17700	AISI	USA
SA-564 S17700	AMS	USA
SA-693 S17700	AMS	USA
SA-705 S17700	AMS	USA
S63198	AISI	USA
A 313 S17700	SAE	USA
A 564 S17700	SAE	USA
A 693 S17700	SAE	USA
A 705 S17700	SAE	USA
S17700	AISI	USA
SA-564 S17700	AMS	USA
SA-693 S17700	AMS	USA
SA-705 S17700	AMS	USA
A 313 Type 631	SAE	USA
A 564 631	SAE	USA
A 693 Type 631	SAE	USA
A 705 631	SAE	USA
A 959 Type 631	SAE	USA
SUS 631	JIS	Japan
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
STS631	KS	Korea
STS631CSP	KS	Korea
STS631J1	KS	Korea
631CPS	CNS	China
AISI631	AISI	USA
ASTM631	ASTM	USA

Chemical composition(mass fraction)(wt.%)

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

Mechanical Properties

Tensile strength	393～563	σb/MPa
Yield Strength	579	σ 0.2 ≥/MPa
Elongation	79	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	829～928	-
HRC	30	-

Physical Properties

Thermal expansion	21-52	e-6/K
Thermal conductivity	41-62	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4981-5869	째C
Density	7552-5774	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 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