2A13 Aluminum Alloy

 ● Mechanical Properties

 

Tensile strength σb (MPA): ≥315

 

Elongation δ5 (%): ≥4

 

Note: The vertical bar at room temperature mechanical properties

 

Sample size: bar diameter (square bar, hexagon bar inscribed circle diameter) ≤22

 

● Heat treatment

 

1) Homogenization: Heat 480 ~ 495 ℃; holding 12 ~ 14h; furnace cooling.

 

2) Complete annealing: heating 390 ~ 430 ℃; holding time 30 ~ 120min; furnace cooling to 300 ℃, air cooling.

 

3) Rapid thermal annealing: heating 350 ~ 370 ℃; holding time of 30 ~ 120min; air cooling. 4) quenching and aging: hardening 495 ~ 505 ℃, water cooling; artificial aging 185 ~ 195 ℃, 6 ~ 12h, air-cooled; natural aging: room 96h.