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Description

S420MH Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: S420MH
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel S420MH
S460NLH
1.8956
S275MH
1.8843
S275MLH
1.8844
S355MH
1.8845
S355MLH
1.8846

Chemical composition(mass fraction)(wt.%) of the S420MH

C
Si
Mn
P
S
Cr Ni
0.16  0.50  1.70  0.035  0.030    ≤0.30
Mo Al Cu Nb Ti V Ce
 ≤0.20   0.020    ≤0.050  0.050  0.12  
N Co Pb B Other    
 0.020            
             

Mechanical Properties of steel grade S420MH

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)
266 (≥) 572 (≥) 43 23 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade S420MH

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
43 - -     0.23 -  
872 612 - 14.3 314   -  
897 - 33 41.2   122 234

Heat Treatment of steel grade S420MH

Heat treated : 1467°C - 1388°C

Technological Curves of steel grade S420MH

Cross Reference Table (Equivalent Grade) of S420MH

Grade Standard Country Application
EN S420MH EN Euronorm Structural steel

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