Introduction of 2A70 forged aluminum block ring bar
2A70 forged aluminum block ring bar as high-strength forged aluminum has high plasticity in hot state and is easy to forge and stamping; it can be strengthened by heat treatment, and its strength after quenching and artificial aging is similar to that of duralumin; the process performance is better, but there is extrusion Pressure effect, so the longitudinal and transverse properties are different; the corrosion resistance is good, but there is a tendency of intergranular corrosion; the machinability is good, resistance welding, spot welding, seam welding performance is good, arc welding and gas welding performance is not good.
Chemical composition of 2A70 forged aluminum block ring bar
Si: 0.35
Fe: 0.9~1.5
Cu: 1.9~2.5
Mn:0.20
Mg: 1.4~1.8
Zn: 0.30
Ti: 0.02~0.10
Ni: 0.9~1.5
Al: margin
Others: Single: 0.05 Total: 0.10
2A70 forged aluminum block ring bar as high-strength forged aluminum has high plasticity in hot state and is easy to forge and stamping; it can be strengthened by heat treatment, and its strength after quenching and artificial aging is similar to that of duralumin; the process performance is better, but there is extrusion Pressure effect, so the longitudinal and transverse properties are different; the corrosion resistance is good, but there is a tendency of intergranular corrosion; the machinability is good, resistance welding, spot welding, seam welding performance is good, arc welding and gas welding performance is not good.
Chemical composition of 2A70 forged aluminum block ring bar
Si: 0.35
Fe: 0.9~1.5
Cu: 1.9~2.5
Mn:0.20
Mg: 1.4~1.8
Zn: 0.30
Ti: 0.02~0.10
Ni: 0.9~1.5
Al: margin
Others: Single: 0.05 Total: 0.10
