The anti-rust alloy sheet mainly includes aluminum-magnesium alloy and aluminum-manganese alloy, because the alloy composition between the two increases its anti-corrosion performance. Such sheet metal alloys cannot be strengthened by heat treatment, so their strength is low. The main performance feature of this type of 4 x 8 aluminum sheet alloy is its excellent corrosion resistance, so it is called rust-proof aluminum.
Rust-proof aluminum alloy sheet metal is usually used in the annealed or cold work hardened state. It has high plasticity, low strength, excellent corrosion resistance and welding performance, easy to process and form, and has good gloss and low temperature performance. It is suitable for manufacture in corrosive environments. It is the most widely used aluminum alloy in welded construction for parts that are not subject to too much stress.
The rust-proof aluminum sheet that cannot be heat treated and strengthened is mainly increased in strength and hardness by work hardening. After work hardening, different annealing temperatures are used to obtain the required strength and ductility to meet different application requirements.
The representatives of aluminum-manganese-aluminum alloy sheets are 3105, 3004, and 3003 aluminum alloys, and the first type of wires and other high conductivity requirements are used on them. The second is generally used on cans, and the last is widely used, such as kitchen utensils, food and chemical products processing and storage devices, tanks and tanks for transporting liquid products, various pressure vessels and pipes made of thin plates, etc.
According to the level of magnesium content, aluminum-magnesium alloy sheets are: 5005 5252 5251 5050 5052 aluminum alloy and so on. , respectively used in some industries with high anti-corrosion performance and high strength requirements, such as shipbuilding, containers, subway high-speed trains, etc. Aluminium alloys that can be machined under atmospheric, water pressure and have good corrosion resistance in media such as oil and oil.
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