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Description

Ck40 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: Ck40
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel Ck40
C30E
Ck30
1.1178
1.1179
C35E
1.1181
Ck35
1.1180
C40E
1.1186

Chemical composition(mass fraction)(wt.%) of the Ck40

 

 

C
Si
Mn
P
S
Cr Ni
0.37-0.44 0.40  0.50-0.80  0.030  0.035     
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
        Cr+Ni+Mo ≤ 0.63    
             

Mechanical Properties of steel grade Ck40

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)
879 (≥) 492 (≥) 21 33 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade Ck40

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
13 - -     0.43 -  
274 322 - 12.3 433   -  
159 - 43 32.2   123 431

Heat Treatment of steel grade Ck40

Heat treated : 1989°C - 1383°C

Technological Curves of steel grade Ck40


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