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28CrMoNiV

China JB 28CrMoNiV 工业汽轮机转子体锻件技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 28CrMoNiV / 28CrMoNiV
Category Grade Standard Region/Area Standard Content
Metals 28CrMoNiV JB/T 7022 China 工业汽轮机转子体锻件技术条件

Chemical composition(mass fraction)(wt.%) of the 28CrMoNiV

Element Min Max Similar
Al - 0.0100 -
Cu - 0.2000 -
V 0.2500 0.3500 -
Ni 0.5000 0.7500 -
Mo 0.8000 1.0000 -
Cr 1.1000 1.4000 -
S - 0.0120 -
P - 0.0120 -
Si - 0.3000 -
Mn 0.3000 0.8000 -
C 0.2500 0.3000 -
C 0.2500 0.3000 -
Mn 0.3000 0.8000 -
Si - 0.3000 -
P - 0.0120 -
S - 0.0120 -
Cr 1.1000 1.4000 -
Mo 0.8000 1.0000 -
Ni 0.5000 0.7500 -
V 0.2500 0.3500 -
Cu - 0.2000 -
Al - 0.0100 -

Mechanical Properties of steel grade 28CrMoNiV

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)
116 (≥) 648 (≥) 42 44 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 28CrMoNiV

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 - -     0.32 -  
568 498 - 13.3 244   -  
875 - 31 12.2   434 131

Heat Treatment of steel grade 28CrMoNiV

Heat treated : 1748°C - 1881°C

Technological Curves of steel grade 28CrMoNiV

Cross Reference Table (Equivalent Grade) of 28CrMoNiV

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