2B50 is a high strength forged Al-Cu-Mg-Si alloy, which can be
strengthened by heat treatment. The chemical composition of the
alloy is slightly different from that of chromium and titanium, and
the content of other elements is the same as that of 2A59 aluminium
alloy. The properties of the alloy are basically the same as that
of 2A50, which can be used for each other. However, the plasticity
of the alloy in hot state is better than that of 2A50.2B50 is used
to make complex and moderate strength free forgings and die
forgings, such as compressor impeller, fan impeller, etc.
Mechanical Properties of 2B50 Die Forgings and Free Forgings as
stipulated in Technical Standards TemperDirectionTension
strength Rm/MPaPrescribed plastic elongation
strengthRp0.2/MPaElongation A(%)Free forgingT6Portrait365-9.0T6Long
transverse 345-6.0Die forgingT6Portrait38027511.0T6Long
transverse 3652457.0
Tensile Properties of 2B50
Aluminum Alloy Wheel Hubs at Room Temperature TemperStabilization
treatment Tension strength Rm/MPaElongation
A(%)Temperature/ºCHolding time /hT6Portrait380-470280--39017.1Long
transverse 380-465275--38015.3Short
transverse385-450280--37013.7Torsional and shear properties of T6
forgings of 2B50 aluminium alloy TemperTension strength
Rm/MPaPrescribed plastic elongation strength
Rp0.2/MPaElongation A(%)2B50 forgings T63351952552B50
aluminium alloy is easy to overburn, and the temperature of
overburn is 545 ºC. During solution quenching, the process
temperature must be strictly controlled. In addition, the transfer
time should not exceed 15 s to avoid affecting the mechanical
properties and corrosion resistance of the alloy. The process
plasticity of the alloy in hot state is better than that of 2A50
aluminum alloy. The forging temperature range is 420-470 ºC.
TypeAlloyProjected area(m2)Or weight(kg)TemperStandardFree
forgings5 series≤3000kgO,FGBn223
ASTMB2472,6,7 series≤3000kgT6,T4,O,FMould
forgings5 series≤2.5m2O,F2,6,7 series≤2.5m2T6,T4,O,F
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