The main alloying elements in 6061 alloy 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 corrosion resistance, such as manufacturing trucks, tower buildings, ships, trams, railway vehicles, and furniture.
Chemical Composition Limits wt%
Cu
Si
Fe
Mn
Mg
Zn
Cr
Ti
Pb.Bi
Al
0.15-0.4
0.4-0.8
0.7
0.15
0.8-1.2
0.25
0.04-0.35
0.15
/
margin
Typical Mechanical & Physical Properties (Typical Mechanical & Physical Properties)
Weldability
Machinability
Corrosion resistance
Conductivity 20°C (68?)
(%IACS)
density
(20°C)(g/cm3)
well
general
better
40-50
2.70
tensile strength
(25°C MPa)
Yield strength (25°C MPa)
hardness
500kg force 10mm ball
Elongation rate
1.6mm (1/16in) thickness
Large shear stress
MPa
310
276
95
12
205