3003 aluminum alloy is an AL-Mn alloy, which is the most widely used anti-rust aluminum. The strength of this alloy is not high (slightly higher than industrial pure aluminum), and it cannot be strengthened by heat treatment. Therefore, cold working method is used to improve its mechanical properties. Properties: High plasticity in the annealed state, good plasticity in semi-cold work hardening, low plasticity in cold work hardening, good corrosion resistance, good weldability, and poor machinability. It is mainly used for low-load parts that require high plasticity and good weldability, and work in liquid or gaseous media, such as fuel tanks, gasoline or lubricating oil conduits, various liquid containers and other small-load parts made by deep drawing forming.
[chemical composition] 3003 aluminum alloy
Manganese Mn: 1.0～1.5
Copper Cu: 0.05～0.2
Iron Fe: 0.7
Silicon Si: 0.60
Zinc Zn: 0.10
Aluminum Al: balance
[mechanical properties] 3003 aluminum alloy
Mechanical Properties Tensile Strength σb (MPa) 140-180
Conditional yield strength σ0.2 (MPa) ≥115
Heat treatment process:
Homogenization annealing temperature is 590~620℃, hot rolling temperature is 480~520℃, extrusion temperature is 320~480℃, typical annealing temperature is 413℃, air cooling
