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America AA 7178 Wrought alloys. Plate and sheet. and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 7178 / 7178
Category Grade Standard Region/Area Standard Content
Metals 7178 -- America Wrought alloys. Plate and sheet.

Chemical composition(mass fraction)(wt.%) of the 7178

Element Min Max Similar
Ga - 0.0300 -
Mn - 0.0200 -
Si - 0.1500 -
Cr 0.1700 0.2500 -
Cu 1.6000 2.2000 -
V - 0.0500 -
Ti - 0.0300 -
Al - - -
Zn 6.6000 7.4000 -
Mg 2.5000 3.2000 -
Fe - 0.2000 -
Others each - 0.0300 -
Others total - 0.1000 -

Mechanical Properties of steel grade 7178

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)
355 (≥) 789 (≥) 22 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade 7178

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 -  
749 928 - 24.3 332   -  
193 - 24 31.2   422 233

Heat Treatment of steel grade 7178

Heat treated : 1486°C - 1533°C

Technological Curves of steel grade 7178

Cross Reference Table (Equivalent Grade) of 7178

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