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CNS 631

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CNS 630 CNS 305J1
#631

Description

China CNS CNS 631 CNS standard precipitation hardening stainless steel and CNS 631 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: CNS 631
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy CNS 631 CNS China CNS standard precipitation hardening stainless steel
CNS 416
CNS 420J1
CNS 420J2
CNS 420F
CNS 431
CNS 440A
CNS 440B
CNS 440C
CNS 440F
CNS 630

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Al(%)
Max 0.09 Max 1.00 Max 1.00 Max 0.040 Max 0.030 16.00-18.00 6.50-7.75 0.75-1.50

Mechanical Properties of steel grade CNS 631

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
661 (≥) 695 (≥) 33 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade CNS 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 - -     0.44 -  
451 181 - 32.3 442   -  
785 - 34 11.2   424 412

Heat Treatment of steel grade CNS 631

Heat treated : 1989°C - 1937°C

Technological Curves of steel grade CNS 631

Cross Reference Table (Equivalent Grade) of CNS 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 KS Korea martensitic steel
STS631 KS Korea martensitic steel
CNS 631 CNS China CNS standard precipitation hardening stainless steel
CNS 631-CPS CNS China CNS standard springs made of cold rolled stainless steel
416310 CSN Czech Republic The Czech republic Structural steel
16310 CSN Czech Republic The Czech republic Structural steel
V-631 ABNT Brazil Brazil Stainless steel
CNS 631 CNS China China Taiwan Stainless steel
631-CPS CNS China China Taiwan Stainless steel
SNC631H CNS China China Taiwan Structural steel
SNC631 CNS China China Taiwan Structural steel
CNS 630 CNS 305J1
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Jiangyou Longhai Special Steel Co.,Ltd.
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...

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