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Description

20MoCr4 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 20MoCr4
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel 20MoCr4
1.1172
C45EC
1.1192
Cq45
1.1192
1.5919
1.7001
38Cr1
1.7002
46Cr1

Chemical composition(mass fraction)(wt.%) of the 20MoCr4

C
Si
Mn
P
S
Cr Ni
             
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

 

C
Si
Mn
P
S
Cr Ni
0.17-0.23  0.40  0.70-1.00  0.035  0.035  0.30-0.60   
Mo Al Cu Nb Ti V Ce
0.40-0.50             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 20MoCr4

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 (≥) 916 (≥) 12 43 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 20MoCr4

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
42 - -     0.34 -  
522 552 - 24.3 334   -  
572 - 21 44.2   242 423

Heat Treatment of steel grade 20MoCr4

Heat treated : 1617°C - 1338°C

Technological Curves of steel grade 20MoCr4

Cross Reference Table (Equivalent Grade) of 20MoCr4

Grade Standard Country Application
20MoCr4 Spain structural alloy steel
EN 20MoCr4 EN Euronorm Structural steel
EN 20MoCr4KD EN Euronorm Structural steel

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