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BÖHLER A903 EXTRA

Global 企业标准 BÖHLERA903EXTRA and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals BÖHLER A903 EXTRA -- Global

Chemical composition(mass fraction)(wt.%) of the BÖHLER A903 EXTRA

Element Min Max Similar
Si - 0.6000 -
Ni - 5.8000 -
N - 0.1700 -
Mo - 3.2000 -
Mn - 1.3000 -
Cr - 22.8000 -
C - 0.0250 -

Mechanical Properties of steel grade BÖHLER A903 EXTRA

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)
988 (≥) 331 (≥) 43 13 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade BÖHLER A903 EXTRA

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
42 - -     0.24 -  
199 715 - 34.3 214   -  
111 - 23 11.2   423 143

Heat Treatment of steel grade BÖHLER A903 EXTRA

Heat treated : 1166°C - 1981°C

Technological Curves of steel grade BÖHLER A903 EXTRA

Cross Reference Table (Equivalent Grade) of BÖHLER A903 EXTRA

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