5A05 aluminum square bar/round bar manufacturer china suppli

The 5A05 aluminum square bar/round bar is an Al-Mg rust-proof aluminum alloy and cannot be heat-treated. The alloy has a high magnesium content and a low strength, similar to the 5A03 alloy. Cold deformation of the alloy can increase strength but reduce plasticity. The plasticity in the annealed state is high, and the plasticity in the semi-cold hardening state is acceptable. The alloy has good corrosion resistance and is suitable for spot welding, atomic hydrogen welding, gas welding and argon arc welding. The machinability is poor in the annealed state, and the semi-cold hardening state is still good.
 5A05 aluminum square bar/round bar are commonly used in the manufacture of welded pipes, welded fuel tanks and other liquid containers that require high process plasticity, good corrosion resistance, medium loads, and other parts; wires are used as electrodes and rivets, and rivets need to be anodized. In foreign countries, approximate alloys (such as 5456) are used to make armor plates and high-strength structural parts. Storage tanks, pressure vessels, and marine parts.
5A05 aluminum square bar/round bar performance：
Tensile strength σb (MPa): ≥225
Conditional yield strength σ0.2 (MPa): ≥110
Elongation δ10 (%): ≥15
Note: Longitudinal mechanical properties of pipe at room temperature
1) Homogenization annealing: heating 460 ~ 475 ° C; holding 12 ~ 14h; air cooling.
2) Rapid annealing: heating 310 ~ 350 ° C; holding time 30 ~ 120min; empty or water cooled.
3) High temperature annealing: heating 310 ~ 335 ° C; finished thickness & ge; 6mm or <6mm, holding time is 30 ~ 180min or 30 ~ 120min; air cooling.
4) Low temperature annealing: heating 250 ~ 300 ° C or 150 ~ 180 ° C; holding time is 1 ~ 2h or 2 ~ 3h air cooling