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Description

90Mn4 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: 90Mn4
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel 90Mn4
1.1203
Ck55
1.1209
C60E
1.1221
Ck60
1.1223
40Mn4
1.1157
1.1273

Chemical composition(mass fraction)(wt.%) of the 90Mn4

C
Si
Mn
P
S
Cr Ni
0.85-0.95  0.25-0.50  0.90-1.10  0.035  0.035     
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 90Mn4

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)
254 (≥) 311 (≥) 33 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 90Mn4

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
32 - -     0.31 -  
346 836 - 31.3 123   -  
646 - 12 23.2   443 412

Heat Treatment of steel grade 90Mn4

Heat treated : 1694°C - 1159°C

Technological Curves of steel grade 90Mn4


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