The main alloying elements of 6061 aluminum tube are magnesium and silicon, which have medium strength, good corrosion resistance, weldability and good oxidation effect. It is widely used in various industrial structural parts that require certain strength and high antibacterial corrosion resistance.
6061 aluminum tube is an Al-Mg-Si alloy, with medium strength, good plasticity and excellent corrosion resistance. In particular, it has no tendency to stress corrosion cracking, and has excellent weldability, corrosion resistance and cold workability. It is a promising alloy with a wide range of applications. It can be anodized and colored, or painted with enamel, which is suitable for building decoration materials. It contains a small amount of Cu, so the strength is higher than that of 6063, but the quenching sensitivity is also higher than that of 6063. After extrusion, air quenching cannot be achieved. It needs to be re-solution treated and quenched and aged to obtain higher strength.
Its main chemical composition is (mass fraction of each element):
Copper Cu: 0.15～0.4
Manganese Mn:0.15
Magnesium Mg: 0.8～1.2
Zinc Zn: 0.25
Chromium Cr: 0.04～0.35
Titanium Ti: 0.15
Silicon Si: 0.4～0.8
Iron Fe: 0.7
Aluminum Al : Allowance
Mechanical properties
The ultimate tensile strength of 6061 is 124 MPa
Tensile yield strength 55.2 MPa
Elongation 25.0 % Elastic modulus 68.9 GPa
Bending ultimate strength 228 MPa
Bearing Yield Strength 103 MPa
Poisson's ratio 0.330
Fatigue strength 62.1 MPa
Typical Application
Widely used in decoration, packaging, construction, transportation, electronics, aviation, aerospace, weapons and other industries.
Aerospace aluminum is used to make aircraft skins, fuselage frames, girders, rotors, propellers, fuel tanks, siding and landing gear pillars, as well as rocket forging rings, spacecraft siding and so on.