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Brazil NBR 204.2 Primary aluminium and casting - Chemical composition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 204.2 / 204.2
Category Grade Standard Region/Area Standard Content
Metals 204.2 ABNT NBR 15975 Brazil Primary aluminium and casting - Chemical composition

Chemical composition(mass fraction)(wt.%) of the 204.2

Element Min Max Similar
Mn - 0.0500 -
Si - 0.1500 -
Ni - 0.0300 -
Cu 4.2000 4.9000 -
Ti 0.1500 0.2500 -
Al - - -
Zn - 0.0500 -
Mg 0.2000 0.3500 -
Sn - 0.0500 -
Fe 0.1000 0.2000 -
Others each - 0.0500 -
Others Total - 0.1500 -

Mechanical Properties of steel grade 204.2

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)
542 (≥) 182 (≥) 41 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 204.2

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
33 - -     0.31 -  
914 912 - 42.3 143   -  
727 - 43 12.2   413 122

Heat Treatment of steel grade 204.2

Heat treated : 1536°C - 1558°C

Technological Curves of steel grade 204.2

Cross Reference Table (Equivalent Grade) of 204.2

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