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China GB JG1204 高温合金和金属间化合物高温材料的分类和牌号 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: JG1204 / JG1204
Category Grade Standard Region/Area Standard Content
Metals JG1204 GB/T 14992 China 高温合金和金属间化合物高温材料的分类和牌号

Chemical composition(mass fraction)(wt.%) of the JG1204

Element Min Max Similar
V - 3.6000 -
Ti - - -
Ta 20.1000 21.1000 -
O - 0.1000 -
Nb 29.2000 31.2000 -
N - 0.0200 -
H - 0.0100 -
Al 8.6000 10.6000 -

Mechanical Properties of steel grade JG1204

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)
717 (≥) 469 (≥) 14 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade JG1204

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
12 - -     0.41 -  
818 691 - 34.3 441   -  
196 - 13 11.2   214 122

Heat Treatment of steel grade JG1204

Heat treated : 1187°C - 1831°C

Technological Curves of steel grade JG1204

Cross Reference Table (Equivalent Grade) of JG1204

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