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China GB 7C04 变形铝及铝合金化学成分 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7C04 / 7C04
Category Grade Standard Region/Area Standard Content
Metals 7C04 GB/T 3190 China 变形铝及铝合金化学成分

Chemical composition(mass fraction)(wt.%) of the 7C04

Element Min Max Similar
Zn 5.5000 6.5000 -
Total Others - 0.1000 -
Others Total - 0.0500 -
Si - 0.3000 -
Mn 0.3000 0.5000 -
Mg 2.0000 2.6000 -
Fe - 0.3000 -
Cu 1.4000 2.0000 -
Cr 0.1000 0.2500 -
Al - - -

Mechanical Properties of steel grade 7C04

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)
818 (≥) 724 (≥) 41 24 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade 7C04

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 - -     0.42 -  
759 922 - 41.3 314   -  
493 - 44 41.2   132 421

Heat Treatment of steel grade 7C04

Heat treated : 1724°C - 1694°C

Technological Curves of steel grade 7C04

Cross Reference Table (Equivalent Grade) of 7C04

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