2A12 aluminum alloy heat treatment specification

[China Aluminum Industry Network] (1) Homogenization annealing: heating 480 ~ 495 °C; insulation 12 ~ 14h; furnace cooling.

(2) Complete annealing: heating 390-430°C; holding time 30-120min; furnace cooling to 300°C, air cooling.

(3) rapid annealing: heating 350 ~ 370 °C; holding time is 30 ~ 120min; air cooling.

(4) Quenching and aging: quenching 495 ~ 505 °C, water cooling; artificial aging 185 ~ 195 °C, 6 ~ 12h, air cooling; natural aging: room temperature 96h.

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