A1200 aluminum alloy characteristics and mechanical properties

【China Aluminum Network】Features:

Aluminum alloy A1200 is industrial pure aluminum, with high plasticity, corrosion resistance, electrical conductivity and thermal conductivity, but low strength, heat treatment can not be strengthened, poor machinability; gas welding, hydrogen atom welding and contact welding, not brazing Easy to withstand a variety of pressure processing and extension, bending.

Mechanical properties:

Tensile strength σb (MPa): 75～105

Elongation δ10 (%): ≥22

Elongation δ5 (%): ≥25

1, the density is small and can be strengthened

The density of pure aluminum is close to 2700 kg/m3, which is about 35% of the density of iron. Pure aluminum can more than double its strength through cold working. And by adding magnesium, zinc, copper, manganese, silicon, lithium, niobium and other elements alloyed, and then further strengthened by heat treatment, and its specific strength can be comparable with high-quality alloy steel.

2, easy processing

Aluminum is cast by any casting method. Aluminum is good in plasticity and can be rolled into thin plates and foils; it can be drawn into pipes and filaments; extruded into various civil profiles; can be machined at large speeds that can be achieved by most machine tools such as turning, milling, boring, and planing. .

3, corrosion resistance and good electrical conductivity and thermal conductivity

The surface of aluminum and its alloys tends to generate a dense and strong Al2O3 protective film. This layer of protective film is only destroyed by the intense action of halogen ions or alkali ions. Therefore, aluminum has excellent resistance to atmospheric (including industrial atmospheric and marine vapor) corrosion and water corrosion. Can resist the corrosion of most acids and organics, use corrosion inhibitors, can resist the corrosion of weak alkaline solution; using protective measures, can improve the corrosion resistance of aluminum alloy. The electrical conductivity and thermal conductivity of aluminum are inferior to silver, copper and gold.

4, no low temperature brittleness

Aluminum is below zero degrees Celsius. As the temperature decreases, the inequality of strength and plasticity does not decrease, but instead increases.

5, beautiful and reflective

The polished surface of aluminum has a reflectance of white light of more than 80%. The higher the purity, the higher the reflectivity. At the same time, aluminum has good reflection properties for infrared rays, ultraviolet rays, electromagnetic waves, and thermal radiation. Aluminum and its alloys have a silver-white luster due to their strong reflective power. After machining, it can reach a high degree of finish and brightness. After anodizing and coloring, colorful and brilliant aluminum products can be obtained.

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