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Al-Si7 Mg 0.3

South Africa SANS Al-Si7Mg0.3 Aluminium and aluminium alloy sand castings and gravity die castings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Al-Si7Mg0.3 / Al-Si7 Mg 0.3
Category Grade Standard Region/Area Standard Content
Metals Al-Si7 Mg 0.3 SANS 991 South Africa Aluminium and aluminium alloy sand castings and gravity die castings

Chemical composition(mass fraction)(wt.%) of the Al-Si7 Mg 0.3

Element Min Max Similar
Zn - 0.1500 -
Total oth. - 0.1500 -
Ti 0.0500 0.2500 -
Sn - 0.0500 -
Si 6.5000 7.5000 -
Pb - 0.1500 -
Others each - 0.0500 -
Ni - 0.1500 -
Mn - 0.3500 -
Mg 0.2000 0.6500 -
Fe - 0.5500 -
Cu - 0.2000 -
Al - - -

Mechanical Properties of steel grade Al-Si7 Mg 0.3

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)
591 (≥) 178 (≥) 34 33 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade Al-Si7 Mg 0.3

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
22 - -     0.32 -  
767 431 - 33.3 112   -  
353 - 33 14.2   314 144

Heat Treatment of steel grade Al-Si7 Mg 0.3

Heat treated : 1766°C - 1145°C

Technological Curves of steel grade Al-Si7 Mg 0.3

Cross Reference Table (Equivalent Grade) of Al-Si7 Mg 0.3

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