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KTB 380-12

China JB KTB380-12 可锻铸铁热处理 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: KTB380-12 / KTB 380-12
Category Grade Standard Region/Area Standard Content
Metals KTB 380-12 JB/T 7529 China 可锻铸铁热处理

Chemical composition(mass fraction)(wt.%) of the KTB 380-12

Element Min Max Similar

Mechanical Properties of steel grade KTB 380-12

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)
651 (≥) 523 (≥) 22 33 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade KTB 380-12

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 - -     0.22 -  
442 851 - 21.3 424   -  
792 - 33 41.2   232 431

Heat Treatment of steel grade KTB 380-12

Heat treated : 1974°C - 1871°C

Technological Curves of steel grade KTB 380-12

Cross Reference Table (Equivalent Grade) of KTB 380-12

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