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Description

20CrMo2 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 20CrMo2
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel 20CrMo2
1.7243
18CrMoS4
1.7244
15CrMo5
1.7262
20CrMo5
1.7264
20CrMoB3-3
1.7271
20CrMoS2

Chemical composition(mass fraction)(wt.%) of the 20CrMo2

 

C
Si
Mn
P
S
Cr Ni
0.18-0.23  0.15-0.35  0.60-0.80  0.035  0.020-0.040  0.50-0.70   
Mo Al Cu Nb Ti V Ce
0.30-0.40             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 20CrMo2

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)
382 (≥) 685 (≥) 14 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 20CrMo2

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
41 - -     0.23 -  
377 754 - 13.3 431   -  
547 - 21 32.2   211 411

Heat Treatment of steel grade 20CrMo2

Heat treated : 1828°C - 1687°C

Technological Curves of steel grade 20CrMo2


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