2A12 Aluminum sheet plate is a high-strength hard aluminum alloy in the aluminum-copper-magnesium system, which can be strengthened by heat treatment. Its composition is reasonable and its comprehensive performance is good. The spot welding of 2A12 aluminum plate has good weldability, and there is a tendency to form intergranular cracks when gas welding and argon arc welding are used. The machinability of 2A12 aluminum plate is still good after cold work hardening. The corrosion resistance of 2A12 aluminum plate is not high, and anodic oxidation treatment and painting method or aluminum coating are often used on the surface to improve the corrosion resistance.
|Alloy||2A12 aluminum sheet plate|
|Application||Molds, high-strength parts, thick plates, heavy forgings, etc.|
|Alloy & Temper||Tensile strength
|Alloy & Temper||Thermal expansion coefficient（20-100℃） µm/m•k||Melting point range（℃）||Conductivity 20℃（68°F）（%IACS)||Resistivity 20（68°F）Ωmm2/m||Density（20℃)（g/cm³）|
2A12 aluminum plate is mostly used in machine appearance structure (skin, skeleton, rib beam, bulkhead, etc.), wing, mold, military industry, transportation vehicle, compressor, rivet, missile component, truck hub, propeller component and other various structure.
2014 aluminum plate is an Al-Cu-Mg-Si series high-strength wrought aluminum alloy, which can be strengthened by heat treatment. The chemical composition of this alloy is similar to that of 2A14 aluminum alloy, it has high strength and good hot workability, and is easy to forge. The performance is basically the same as 2A14. Due to the high copper content of the alloy, its corrosion resistance is poor, and it is prone to intergranular corrosion and stress corrosion. Its weldability is still good, and its cutting performance is good.
The 2017 aluminum plate is the first 2-series alloy to be applied in industry, which has high strength and good machinability, but poor corrosion resistance. The 2 series aluminum plate is characterized by high hardness, among which the copper content is the highest, about 3-5%. The 2 series aluminum plate belongs to aviation aluminum, which is not commonly used in conventional industries at present.
7020 aluminum plate belongs to medium and high strength Al-Zn-Mg alloy, which has high strength, good welding performance and process performance. It is the main welding structural material for aerospace vehicles and ground vehicles and equipment, and is widely used in the manufacture of high-speed train vehicles. body. 7020 aluminum alloy has good comprehensive properties after heat treatment. The strength of 7020 aluminum plate is greater than that of 6082, but its forming ability is correspondingly worse.
7050 aluminum plate is a cold-treated forging alloy with high strength, which is far better than mild steel. The main alloying element of 7050 aluminum plate is zinc, which can be heat treated and strengthened, has good thermal deformation performance, wide quenching range, high strength and good welding performance. 7050 aluminum plate is mainly used for high-stress structures with high strength requirements and strong corrosion resistance, such as mold processing,
The 7005 aluminum plate is a super duralumin, with good welding performance and can be strengthened by heat treatment. Its strength is not as good as 6061, but it is much lighter. It is a typical lightweight aluminum material. 7005 aluminum plate is often used in welded structures with high strength and high fracture toughness, such as vehicle trusses, rods, containers; large heat exchangers, and parts that cannot be solidified after welding; it can also be used to manufacture sports equipment such as Tennis racket and softball bat.
The 7075 aluminum plate is an Al-Zn-Mg-Cu series alloy, which can be heat-treated and strengthened. Among them, Zn and Mg mainly play the role of strengthening, and the role of Cu is mainly to improve the corrosion resistance of the alloy. 7075 aluminum plate is a superhard aluminum alloy with very good mechanical properties. The tensile and shear strength can reach more than 600, and the elongation rate can reach as high as 70%.