2124 aviation aerospace aluminum plate is American brand and China brand is 2A12. The alloy element of 2124 is copper, which is called duralumin. It has high strength and good machinability, but its corrosion resistance is poor. It is widely used in aircraft structures (skin, framework, rib beam, partition frame, etc.), rivets, missile components, truck hub, propeller components and other structural parts, and it is Al Cu mg system.
2124 aviation aerospace aluminum plate is American brand and China brand is 2A12. 2124 aviation aerospace aluminum plate, aluminum bar, the density is 2.73 g / cm. 2124 is a typical duralumin alloy in the aluminum copper magnesium system. Its composition is fair and its comprehensive function is good. This kind of alloy is produced in many countries, and the consumption of duralumin roof is the largest. The alloy is characterized by high strength and certain heat resistance, which can be used as working parts below 150 ° C. When the temperature is higher than 125 ℃, the strength of 2124 alloy is higher than that of 7075 alloy. The forming function is better in the hot state, annealed state and new quenched state, and the heat treatment strengthening effect is obvious, but the heat treatment process is strict. It has poor corrosion resistance, but it can be effectively protected by covering with pure aluminum; it is easy to produce cracks during welding, but it can be welded or riveted by using special technology. It is widely used in aircraft structures, rivets, truck hubs, propeller components and other structural parts.
Physical property of 2124 aviation aerospace aluminum plate 1. Low density The density of aluminum and aluminum alloy is close to 2.7g/l, about 1 / 3 of that of iron or copper. 2. High strength Aluminum and its alloys have high strength. The strength of the matrix can be strengthened by cold working to some extent, and the aluminum alloy of department brand can also be strengthened by heat treatment. 3. Good conductivity and thermal conductivity Aluminum is second only to silver, copper and gold in conductivity and heat conduction. 4. Good corrosion resistance The surface of aluminum is easy to produce a layer of dense and solid alumina protective film, which can protect the matrix from erosion. Through artificial anodizing and coloring, forging aluminum alloy with good forging function or wrought aluminum alloy with good plasticity can be obtained. 5. Easy to process
