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2A11 mold aluminum plate medium thickness aluminum plate

Author : Alex  Updated : Oct 23, 2019 17:44
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2A11 aluminum alloy physical properties / chemical composition / product specifications material application profile:

Material Name: 2A11 Aluminum Alloy Standard: GB/T 3191-1998

2A11 aluminum plate

Features and scope of application:

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.

chemical composition:  

Aluminum Al: balance

Silicon Si: ≤0.7

Copper Cu: 3.8 to 4.8

Magnesium Mg : 0.40~0.8

Zinc Zn : ≤ 0.30

Manganese Mn : 0.40 to 0.8

Titanium Ti : ≤ 0.15

Nickel Ni : ≤ 0.10

Iron Fe : 0.000~0.700

Iron + nickel Fe + Ni : 0.000 ~ 0.700 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

Heat treatment specification:

  • 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.

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