3003 is an AL-Mn series 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 cannot be strengthened by heat treatment. Therefore, cold working methods are used to improve its mechanical properties: It has high plasticity in the annealed state, good plasticity during semi-cold work hardening, low plasticity during cold work hardening, good corrosion resistance, good weldability, and poor machinability.
Mainly used for low-load parts that require high plasticity and good weldability, working in liquid or gaseous media, such as gasoline or lubricating oil pipes, various liquid containers and other small-load parts made by deep drawing. Wires are used Make rivets.
3003 aluminum alloy pipe tube has good formability, weldability and corrosion resistance. Used for processing parts that require good formability, high corrosion resistance and good weldability, or work that requires these properties and requires higher strength than 1XXX series alloys, such as kitchenware, food and chemical product processing and Storage devices, tanks and tanks for transporting liquid products, various pressure vessels and pipes made of thin plates, general utensils, heat sinks, makeup boards, photocopier drums, and ship materials.
Thermal processing and heat treatment temperature
Homogenizing annealing temperature is 590~620℃, hot rolling temperature is 480~520℃, extrusion temperature is 320~480℃, typical annealing temperature is 413℃, air cooling.
Chemical properties
Corrosion resistance: The corrosion resistance of 3003 aluminum alloy pipe tube is very good, close to the corrosion resistance of industrial pure aluminum, and has good corrosion resistance to the atmosphere, fresh water, sea water, food, organic acids, gasoline, neutral inorganic salt solutions, etc. , The corrosion resistance in dilute acid is also very good. In the cold deformed state, 3003 aluminum alloy has a tendency to spall and corrode. The greater the deformation, the more serious the spalling. Since the color is not uniform after anodization, anodizing treatment is generally not performed.
