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Short Description:
Alloy:2A11
Temper:T4 / T6 / T351 / H112
Thickness:1.0-600mm
Width:500-2650mm
Length:500-16000mm
Availability:In Stock
2A11 aluminum alloy is the earliest hard aluminum, generally called standard hard aluminum, with medium strength. It has good plasticity in annealing, quenching and hot state. It can be heat-treated and strengthened. It can be used in quenching and natural aging conditions. The weldability is good, and there is a tendency to crack when performing gas welding and argon arc welding; the cutting is good in the quenching aging state and is poor in the annealing state.
Al | Si | Cu | Mg | Zn | Mn | Ti | Ni | Fe | Fe + Ni |
balance | ≤0.7 | 3.8 – 4.8 | 0.40~0.8 | ≤ 0.30 | 0.40 – 0.8 | ≤ 0.15 | ≤ 0.10 | 0-0.7 | 0-0.7 |
Note: single: ≤ 0.05; total: ≤ 0.10
Mechanical properties:
Tensile strength σb (MPA): ≥370
Yield strength σ0.2 (MPA): ≥215
Elongation δ5 (%): ≥12 Note: Longitudinal mechanical properties of bar at room temperature
1) Homogenization annealing: heating 480 ~ 495 ° C; holding 12 ~ 14h; furnace cooling.
2) Complete annealing: heating 390 ~ 430 ° C; holding time 30 ~ 120min; air cooling.
3) Rapid annealing: heating 350 ~ 370 ° C; holding time is 30 ~ 120min; air cooling.
4) Quenching and aging: quenching 495 ~ 510 ° C, water cooling; artificial aging 155 ~ 165 ° C, 6 ~ 10h, air cooling; natural aging: room temperature 96h.