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B618 712.0

America ASTM B618712.0 铝合金熔模铸件技术规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B618712.0 / B618 712.0
Category Grade Standard Region/Area Standard Content
Metals B618 712.0 ASTM B618/B618M America 铝合金熔模铸件技术规范

Chemical composition(mass fraction)(wt.%) of the B618 712.0

Element Min Max Similar
Zn 7.0000 8.0000 -
Ti - 0.2500 -
Si - 0.2500 -
Others Total - 0.2500 -
Others each - 0.1000 -
Ni - 0.1500 -
Mn - 0.6000 -
Mg 0.2000 0.5000 -
Fe - 1.1000 -
Cu 0.4000 1.0000 -
Cr - 0.3500 -
Al - - -

Mechanical Properties of steel grade B618 712.0

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)
469 (≥) 314 (≥) 41 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade B618 712.0

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 - -     0.11 -  
816 662 - 23.3 234   -  
799 - 42 14.2   234 314

Heat Treatment of steel grade B618 712.0

Heat treated : 1348°C - 1328°C

Technological Curves of steel grade B618 712.0

Cross Reference Table (Equivalent Grade) of B618 712.0

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