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Description

USA AISI 12Cr-4Ni and 12Cr-4Ni Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 12Cr-4Ni
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 12Cr-4Ni AISI USA
CG-8M
19Cr-11Ni+Mo
21Cr-25Ni+Mo
CN-3M
CN-3MN
21Cr-24Ni+Mo+N
CN-7M
20Cr-29Ni+Mo+Cu
CN-7MS
19Cr+24Ni+Mo+Cu

Chemical composition(mass fraction)(wt.%) of the 12Cr-4Ni

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
Max 0.06 Max 1.00 Max 1.00 Max 0.04 Max 0.03 11.5-14.0 3.5-4.5 0.40-1.0

Mechanical Properties of steel grade 12Cr-4Ni

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)
957 (≥) 715 (≥) 21 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade 12Cr-4Ni

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
44 - -     0.22 -  
116 422 - 12.3 341   -  
667 - 21 24.2   141 424

Heat Treatment of steel grade 12Cr-4Ni

Heat treated : 1359°C - 1336°C

Technological Curves of steel grade 12Cr-4Ni

Cross Reference Table (Equivalent Grade) of 12Cr-4Ni

Grade Standard Country Application
12Cr-4Ni AISI USA

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