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China HB JCr99-B 铸造高温合金选用原材料技术要求 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: JCr99-B / JCr99-B
Category Grade Standard Region/Area Standard Content
Metals JCr99-B HB/Z 131 China 铸造高温合金选用原材料技术要求

Chemical composition(mass fraction)(wt.%) of the JCr99-B

Element Min Max Similar
O - 0.5000 -
H - 0.0100 -
N - 0.0500 -
As - 0.0010 -
Bi - 0.0010 -
Sb - 0.0010 -
Sn - 0.0010 -
Pb - 0.0005 -
P - 0.0100 -
S - 0.0200 -
C - 0.0200 -
Cu - 0.0400 -
Al - 0.3000 -
Si - 0.3000 -
Fe - 0.4000 -
Cr 99.0000 - -

Mechanical Properties of steel grade JCr99-B

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)
748 (≥) 896 (≥) 33 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade JCr99-B

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 - -     0.21 -  
627 142 - 12.3 224   -  
645 - 32 22.2   313 211

Heat Treatment of steel grade JCr99-B

Heat treated : 1966°C - 1712°C

Technological Curves of steel grade JCr99-B

Cross Reference Table (Equivalent Grade) of JCr99-B

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