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2A14 Aluminum forgings forged product parts

2A14 is a high strength forged Al-Cu-Mg-Si alloy, which can be heat-strengthened. From the point of view of chemical composition and properties, it can belong to hard aluminium alloy and forged aluminium alloy. It differs from 2A50 forged aluminium alloy in that the copper content of the alloy is more than double that of 2A50 alloy. The strength of the alloy after solution treatment and artificial aging is higher than that of 2A50, but its corrosion resistance is general and worse than that of 2A50. There is a tendency of intergranular corrosion and stress corrosion under artificial aging. The plasticity of the alloy is moderate, and the plasticity is not as good as that of 2A50 under hot condition. It has extrusion effect, indicating that the longitudinal and transverse properties of the alloy are different. It has good weldability and is suitable for resistance spot welding and seam welding. Its machinability is good.


2A14 Aluminum forgings parts
 
2A14 aluminium forgings alloy is used to manufacture free forgings and die forgings under high loads, as well as large frames, bridges, large shells, truck components, etc. However, due to the difficulty of hot pressing, the application range of the alloy is limited.
 
2A14 Mechanical properties of die forgings and free forgings
  Temper Direction Tension strength Rm/MPa Prescribed plastic elongation strength Rp0.2/MPa Elongation A
(%)
Free forgings T4 Portrait 380 245 10
T6 Portrait 410 8
Die forgings T4 Portrait 380 245 11
T6 Portrait 430 315 10
 
Tensile Properties of 2A14 Die Forging and Free Forging at Room Temperature
  Temper Dimension/mm Tension strength Rm/MPa Prescribed plastic elongation strength  Rp0.2/MPa Elongation A
(%)
Die forgings T6 ≤50 450 385 6
>50--76 450 380 6
>76--100 435 380 6
Free forgings  
T6
L 50--76 440 385 8
L-T 440 380 3
S-T 425 380 2
Room temperature hardness: Brinell hardness of 2A14 alloy in O state is 45 HBW, Bush hardness in T6 state is 135 HBW.
 
 
  Tensile Properties of 2A14 Aluminum Alloy Forgings Stabilized at Room Temperature
Temper Stabilization treatment Tension strength Rm/MPa Prescribed plastic elongation strength   Rp0.2/MPa Elongation A
(%)
Temperature/℃ Holding time/h
T6 130 10 510 431 7
100 520 422 8
1000 520 431 8
T6 150 10 500 451 8
100 495 456 7
1000 490 441 8
 
Type Alloy Projected area(m2)Or weight(kg) Temper Standard
Free forgings 5 series ≤3000kg O、F GBn223
    ASTMB247
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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