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Australia AS H9A Cast steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: H9A / H9A
Category Grade Standard Region/Area Standard Content
Metals H9A AS/NZS 2074 Australia Cast steels

Chemical composition(mass fraction)(wt.%) of the H9A

Element Min Max Similar
Si - 1.5000 -
S - 0.0400 -
P - 0.0400 -
Ni 27.5000 30.5000 -
Mo 2.0000 3.0000 -
Mn - 1.5000 -
Cu 3.0000 4.0000 -
Cr 19.0000 22.0000 -
C - 0.0700 -

Mechanical Properties of steel grade H9A

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)
268 (≥) 992 (≥) 31 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade H9A

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
23 - -     0.13 -  
231 988 - 11.3 221   -  
313 - 22 41.2   114 423

Heat Treatment of steel grade H9A

Heat treated : 1935°C - 1818°C

Technological Curves of steel grade H9A

Cross Reference Table (Equivalent Grade) of H9A

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