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America AA 7278A Wrought aluminum and wrought aluminum alloys and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7278A / 7278A
Category Grade Standard Region/Area Standard Content
Metals 7278A TEAL-1 America Wrought aluminum and wrought aluminum alloys

Chemical composition(mass fraction)(wt.%) of the 7278A

Element Min Max Similar
Mn - 0.2500 -
Si - 0.1200 -
Cr - 0.0500 -
Cu 1.3000 2.1000 -
Ti - 0.0500 -
Zr 0.0500 0.2500 -
Al - - -
Zn 6.4000 7.4000 -
Mg 2.3000 3.2000 -
Fe - 0.1500 -
Others each - 0.0500 -
Others total - 0.1500 -

Mechanical Properties of steel grade 7278A

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)
423 (≥) 348 (≥) 13 42 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 7278A

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
34 - -     0.21 -  
762 394 - 43.3 433   -  
981 - 11 22.2   322 212

Heat Treatment of steel grade 7278A

Heat treated : 1114°C - 1526°C

Technological Curves of steel grade 7278A

Cross Reference Table (Equivalent Grade) of 7278A

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