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A297 Grade HC

America ASTM A297GradeHC 一般用耐热铬铁与镍铬铁合金钢铸件规格 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A297GradeHC / A297 Grade HC
Category Grade Standard Region/Area Standard Content
Metals A297 Grade HC ASTM A297/A297M America 一般用耐热铬铁与镍铬铁合金钢铸件规格

Chemical composition(mass fraction)(wt.%) of the A297 Grade HC

Element Min Max Similar
Si - 2.0000 -
S - 0.0400 -
P - 0.0400 -
Ni - 4.0000 -
Mo - 0.5000 -
Mn - 1.0000 -
Cr 26.0000 30.0000 -
C - 0.5000 -

Mechanical Properties of steel grade A297 Grade HC

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)
551 (≥) 495 (≥) 32 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade A297 Grade HC

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
41 - -     0.24 -  
558 475 - 22.3 421   -  
938 - 41 44.2   441 321

Heat Treatment of steel grade A297 Grade HC

Heat treated : 1815°C - 1835°C

Technological Curves of steel grade A297 Grade HC

Cross Reference Table (Equivalent Grade) of A297 Grade HC

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