4006-O aluminum is 4006 aluminum in the annealed condition. It has the lowest strength and highest ductility compared to the other variants of 4006 aluminum. The graph strips on the material properties cards below compare 4006-O aluminum to: 4000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full strip means this is the highest value in the relevant set. A half-full strip means it's 50% of the highest, and so on.

4006 T3 round aluminum strip has a large thermal expansion coefficient, high high temperature strength, and good high temperature corrosion resistance. For machining forged pistons. It is a building material, a forging material for mechanical parts, and a welding material; 4006 T3 round aluminum strip 1. High wear resistance. Aluminum-silicon alloy has high wear resistance. With the increase of silicon content, the hardness and strength of aluminum-silicon alloy will increase accordingly. 2. Small coefficient of thermal expansion. Any material will expand at high temperature, which limits the application range of most materials. The aluminum-silicon alloy has a small thermal expansion coefficient and can work in a high-temperature environment. 3. Easy to cast. 

Among the cast aluminum alloys, 4-series aluminum-silicon alloys account for more than 90%, which shows the superior casting performance of aluminum-silicon alloys.

chemical composition: aluminum Al (minimum value): balance;silicon Si: 0.8~1.2;iron Fe: 0.50~0.8;copper Cu: ≤0.05;manganese Mn: ≤0.03;magnesium Mg: ≤0.01;chromium Cr: ≤0.20;zinc Zn: ≤0.05

Mechanical behavior:Tensile strength(Rm/Mpa):380;Yisld strength(Rp0.2/Mpa):315;Elongation/%:9;Hardness/HBWα:105

Characteristics

Excellent hardness when heat treated

Suitable for use in stressed parts

Limited corrosion resistance

Poor weldability

Application  

Construction/Indutry/Building/Chemical/Auto

It is mainly used in the manufacture of aviation equipment, daily necessities, doors and windows for construction, etc.

Gas turbines

Steam turbines

Petroleum fractioning structures

Valves & pumps

Kitchen utensils

Fasteners