A69 aluminum alloy performance in pressure vessels and refrigeration equipment

A69 aluminum alloy has good strength and toughness properties. The following are the strength characteristics of A69 aluminum alloy:

Chemical composition of A69 aluminum alloy:

Aluminum Al: balance

Silicon Si: ≤0.10

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Iron Fe: ≤0.12

Copper Cu: 1.2~1.9

Manganese Mn: ≤0.06

Magnesium Mg: 1.9~2.6

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Chromium Cr: 0.18~0.25

Zinc Zn: 5.2~6.2

Titanium Ti: ≤0.06

Other elements not specified: every Species: ≤0.05; Total: ≤0.15

A69 mechanical properties:

Tensile strength σb (MPa): ≤305

Elongation δ10 (% ): ≥5

Density: 2.730g/cm.

Poisson's ratio: 0.33 at 20°C (68F)

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High strength: A69 aluminum alloy can obtain a high strength level through appropriate heat treatment process. This makes it suitable for applications with higher loads and complex working conditions.

Heat treatment enhancement: By precisely controlling heat treatment processes, such as solution treatment and aging treatment, the grain and phase structure of A69 aluminum alloy can be improved, thereby increasing its strength and hardness.

Flexibility in material selection: A69 aluminum alloy can undergo different levels of heat treatment according to specific application requirements to adjust the strength and toughness of the material to meet different application requirements.