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2A02 Aluminum Round Bar Rod

Last Updated: 2023-03-08

2A02 aluminum alloy is a high era of hard aluminum, which is characterized by high strength at room temperature, but also has high thermal strength, belongs to heat-resistant hard aluminum. Alloys are highly plastic when thermally deformed, and in squeezing semi-finished prodsucts, there is a tendency to form coarse crystal rings, which can be heat-treated and reinforced, and used in quenching and artificial aging. Compared with 2A70 and 2A80 heat-resistant forged aluminum, corrosion stability is better, but there is a tendency of stress corrosion and rupture, welding than 2A70 slightly better, good cutting.


Chemical Composition of 2A02 Aluminum Round Bar Rod

Silicon Si: 0.30

Iron Fe: 0.30

Copper Cu: 2.6-3.2

Magnesium Mg: 2.0-2.4

Zinc Zn: 0.10

Manganese Mn: 0.45-0.7 Titanium Ti: 0.15

Aluminum Al : Allowance

Note: Single: 0.05; Total: 0.10


Mechanical properties:

Tensile strength σb (MPa): ≥430

Conditional yield strength σ0.2 (MPa): ≥275

Elongation δ5 (%): ≥10

Note: Longitudinal mechanical properties of bars at room temperature


Heat treatment specifications

1)Rapid annealing: heating 350 to 370 degrees C, insulation time 30 to 120 min depending on the effective thickness of the material, air or water cooling

2)Quenching and aging: quenching 495 to 505 degrees C, water-cooled;

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