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China GB GB/T 8732-2014, 12Cr13 Specialsteel Steels of blade for steam turbine and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 12Cr13
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 12Cr13 Martensite GB China Steels of blade for steam turbine

Chemical composition(mass fraction)(wt.%) of the 12Cr13

C Si Mn P S Cr Cu
0.10 -0.15 ≤0.60 ≤0.60 ≤0.030 ≤0.020 11.50 -13.50 ≤0.30

Mechanical Properties of steel grade 12Cr13

Rp0.2 (MPa)
Rm (MPa)
KV/Ku (J)
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
379 (≥) 576 (≥) 22 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 12Cr13

Modulus of elasticity
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
Specific thermal capacity
Specific electrical resistivity
(Ω mm²/m)
Poisson’s coefficient, ν
34 - -     0.43 -  
275 679 - 21.3 231   -  
781 - 34 22.2   333 324

Heat Treatment of steel grade 12Cr13

Heat treated : 1312°C - 1622°C

Technological Curves of steel grade 12Cr13

Cross Reference Table (Equivalent Grade) of 12Cr13

Grade Standard Country Application

Relevant standard of 12Cr13

GB/T 8732-2014 Steels of blade for steam turbine GB-T-8732-2014.pdf

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