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Description

E420M Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: E420M
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel E420M
E275K2
1.0456
E355K2
1.0920
E460K2
1.8991
E275M
1.8995
E355M
1.8996

Chemical composition(mass fraction)(wt.%) of the E420M

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 E420M

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)
863 (≥) 432 (≥) 43 14 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade E420M

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
11 - -     0.24 -  
639 971 - 22.3 421   -  
934 - 11 23.2   124 322

Heat Treatment of steel grade E420M

Heat treated : 1542°C - 1145°C

Technological Curves of steel grade E420M


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