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Description

SCM418 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SCM418
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SCM418
SMn443
SMnC420
SMnC443
SCr415
SCr420
SCr430
SCr435
SCr440
SCr445
SCM415

Chemical composition(mass fraction)(wt.%) of the SCM418

 


C
Si
Mn
P
S
Cr Ni
0.16-0.21 0.15-0.35 0.6-0.9 0.03 0.03 0.9-1.2 ≤0.25
Mo Al Cu Nb Ti V Ce
0.15-0.25   ≤0.3        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SCM418

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)
355 (≥) 932 (≥) 21 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade SCM418

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
34 - -     0.21 -  
613 819 - 22.3 242   -  
861 - 34 12.2   234 322

Heat Treatment of steel grade SCM418

Heat treated : 1831°C - 1443°C

Technological Curves of steel grade SCM418

Cross Reference Table (Equivalent Grade) of SCM418

Grade Standard Country Application
SCM418H China China Taiwan Structural steel
SCM418 China China Taiwan Structural steel

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