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2B50 Aluminum forgings forged product parts

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
  Temper Direction Tension strength Rm/MPa Prescribed plastic elongation strength
Elongation A
Free forging T6 Portrait 365 9.0
T6 Long transverse
345 6.0
Die forging T6 Portrait 380 275 11.0
T6 Long transverse
365 245 7.0
      Tensile Properties of 2B50 Aluminum Alloy Wheel Hubs at Room Temperature
Temper Stabilization treatment Tension strength Rm/MPa Elongation A
Temperature/℃ Holding time /h
T6 Portrait 380-470 280--390 17.1
Long transverse
380-465 275--380 15.3
Short transverse 385-450 280--370 13.7
Torsional and shear properties of T6 forgings of 2B50 aluminium alloy
  Temper Tension strength Rm/MPa Prescribed plastic elongation strength  Rp0.2/MPa Elongation A
2B50 forgings
T6 335 195 255

2B50 aluminium alloy is easy to overburn, and the temperature of overburn is 545 ℃. 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 ℃.
Type Alloy Projected area(m2)Or weight(kg) Temper Standard
Free forgings 5 series ≤3000kg O、F GBn223
2、6、7 series ≤3000kg T6、T4、O、F
Mould forgings 5 series ≤2.5m2 O、F
2、6、7 series ≤2.5m2 T6、T4、O、F

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