631

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#631

Description

631 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: 631

Category	Type	Steel Grade
Steel Grades	Stainless Steel	631
		XM-13
		S13800
		XM-12
		S15500
		632
		S15700
		630
		S17400
		635
		S17600

Chemical composition(mass fraction)(wt.%) of the 631

Mechanical Properties of steel grade 631

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
281 (≥)	342 (≥)	44	12	22	Solution and Aging, Annealing, Ausaging, Q+T,etc	424

Physical Properties of steel grade 631

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
21	-	-			0.11	-
635	875	-	44.3	231		-
398	-	32	13.2			411	341

Heat Treatment of steel grade 631

Heat treated : 1758°C - 1788°C

Technological Curves of steel grade 631

No Curve

Cross Reference Table (Equivalent Grade) of 631

Grade	Standard	Country	Application
1.2631	DIN	Germany	Cold working alloy tool steel
AISI 631	AISI	USA	precipitation hardening
ASTM 631	ASTM	USA	precipitation hardening
UNS S63198	UNS	USA	precipitation hardening
UNS S63198	UNS	USA	precipitation hardening
UNS S63199	UNS	USA	precipitation hardening
2.4631	DIN	Germany	The high-temperature and high-strength steel
SUS631	JIS	Japan	precipitation-hardening stainless
SUS631-CPS	JIS	Japan	stainless steel
STS631			martensitic steel
STS631			martensitic steel
CNS 631		China	CNS standard precipitation hardening stainless steel
CNS 631-CPS		China	CNS standard springs made of cold rolled stainless steel
416310			The Czech republic Structural steel
16310			The Czech republic Structural steel
V-631			Brazil Stainless steel
CNS 631		China	China Taiwan Stainless steel
631-CPS		China	China Taiwan Stainless steel
SNC631H		China	China Taiwan Structural steel
SNC631		China	China Taiwan Structural steel

Available Suppliers

Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.09	1.00	1.00	0.040	0.030	16-18.0	6.5-7.7
Mo	Al	Cu	Nb	Ti	V	Ce
	0.75-1.50
N	Co	Pb	B	Other

Stainless Steels

Tube/Pipe

Steel Profiles

Cold rolled/hot rolled

Wire rod

Quality special steel

Superalloy & High Temperature Alloy

631