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Description

S40C Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: S40C
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel S40C
S17C
S20C
S20CK
S22C
S25C
S28C
S30C
S33C
S35C
S38C

Chemical composition(mass fraction)(wt.%) of the S40C

 


C
Si
Mn
P
S
Cr Ni
0.37-0.43 0.15-0.35 0.6-0.9 0.03 0.03 ≤0.2 ≤0.2
Mo Al Cu Nb Ti V Ce
    ≤0.3        
N Co Pb B Other    
        Cr+Ni≤0.35    
             

Mechanical Properties of steel grade S40C

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)
448 (≥) 921 (≥) 24 21 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade S40C

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
41 - -     0.43 -  
857 872 - 32.3 423   -  
354 - 13 14.2   212 324

Heat Treatment of steel grade S40C

Heat treated : 1688°C - 1523°C

Technological Curves of steel grade S40C

Cross Reference Table (Equivalent Grade) of S40C

Grade Standard Country Application
S40CrMnlSil tool steel
S40C China China Taiwan Structural steel

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