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CNS 631-CPS

Description

China CNS CNS 631-CPS CNS standard springs made of cold rolled stainless steel and CNS 631-CPS Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: CNS 631-CPS
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy CNS 631-CPS CNS China CNS standard springs made of cold rolled stainless steel
CNS 440A
CNS 440B
CNS 440C
CNS 440F
CNS 630
CNS 631
CNS 305J1
CNS 301-CPS
CNS 304-CPS
CNS 420J2-CPS

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

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Al(%)
Max 0.09 Max 1.00 Max 1.00 Max 0.040 Max 0.030 16.0-18.0 6.50-7.50 0.75-1.50

Mechanical Properties of steel grade CNS 631-CPS

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)
769 (≥) 537 (≥) 44 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade CNS 631-CPS

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
44 - -     0.12 -  
188 891 - 33.3 231   -  
843 - 14 31.2   112 123

Heat Treatment of steel grade CNS 631-CPS

Heat treated : 1953°C - 1984°C

Technological Curves of steel grade CNS 631-CPS

Cross Reference Table (Equivalent Grade) of CNS 631-CPS

Grade Standard Country Application
SUS631-CPS JIS Japan stainless steel
CNS 631-CPS CNS China CNS standard springs made of cold rolled stainless steel
631-CPS CNS China China Taiwan Stainless steel

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