Chemical composition of aluminum alloy

Aluminum alloy   Aluminum alloy is based on aluminum alloy. The main alloy elements are copper, silicon, magnesium, zinc and manganese, and the secondary alloy elements are nickel, iron, titanium, chromium, lithium, etc. Aluminum alloy density is low, but the intensity is high, close to or more than high-quality steel, plastic, can be processed into various profiles, with excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used on industry, usage is second only to the steel. Aluminum alloy is divided into two categories: cast aluminum alloy, used in casting; Aluminum alloy, can withstand the pressure processing, the mechanical performance is higher than the cast state. Can be processed into various forms, specifications of aluminum alloy material. Mainly used for making aviation equipment, daily necessities, building doors and Windows, etc.   Forging Alloy Alloy naming System International (International Alloy Designation System) named forged Alloy widely accepted. Each alloy is due to a four-digit number, of which the first digit is the main alloy element.The 1000 series contains at least 99 percent (percent of the weight) of aluminum.2000 series of copper alloys, strength comparable to steel. Formerly known as duralumin, it is commonly  used as a carrier alloy, but it is easily eroded by grain and gradually replaced by 7000 series.3000 series manganese alloy, have process hardening.The 4000 series silicon alloy, also known as silicon aluminum.The 5000 series magnesium alloy can solve the process hardening, the strength is comparable to the steel.The 6000 series magnesium-silicon alloy is easy to process, can be deposited and hardened, and the strength is not very high.The 7000 series zinc alloy can be precipitated and hardened, with the highest strength in all aluminum alloys.8000 series mixingThe alloy element content of forging. （重量百分比） 代号硅铁铜锰镁铬锌钒钛钡镓铅锆其他铝每种总和10600.250.350.050.030.030.030.050.050.030.030.030.030.030.03 最少99.611000.95 Si+Fe0.05-0.200.05  0.10      0.050.15最少99.020140.50-1.20.73.9-5.00.40-1.20.20-0.80.100.25 0.15    0.050.15剩余的20240.500.503.8-4.90.30-0.91.2-1.80.100.25 0.15    0.050.15剩余的22190.20.305.8-6.80.20-0.400.02 0.100.05-0.150.02-0.10   0.10-0.250.050.15剩余的30030.60.70.05-0.201.0-1.5  0.10      0.050.15剩余的30040.300.70.251.0-1.50.8-1.3 0.25      0.050.15剩余的31020.400.70.100.05-0.40  0.30 0.10    0.050.15剩余的50520.250.400.100.102.2-2.80.15-0.350.10      0.050.15剩余的50830.400.400.100.40-1.04.0-4.90.05-0.250.25 0.15    0.050.15剩余的50860.400.500.100.20-0.73.5-4.50.05-0.250.25 0.15    0.050.15剩余的51540.250.400.100.103.1-3.90.15-0.350.20 0.20    0.050.15剩余的54540.250.400.100.50-1.02.4-3.00.05-0.200.25 0.20    0.050.15剩余的54560.250.400.100.50-1.04.7-5.50.05-0.200.25 0.20    0.050.15剩余的60050.6-0.90.350.100.100.40-0.60.100.10 0.10    0.050.15剩余的6005A†0.50-0.90.350.300.500.40-0.70.300.20 0.10    0.050.15剩余的60600.30-0.60.10-0.300.100.100.35-0.60.50.15 0.10    0.050.15剩余的60610.40-0.80.70.15-0.400.150.8-1.20.04-0.350.25 0.15    0.050.15剩余的60630.20-0.60.350.100.100.45-0.90.100.10 0.10    0.050.15剩余的60660.9-1.80.500.7-1.20.6-1.10.8-1.40.400.25 0.20    0.050.15剩余的60701.0-1.70.500.15-0.400.40-1.00.50-1.20.100.25 0.15    0.050.15剩余的60820.7-1.30.500.100.40-1.00.60-1.20.250.20 0.10    0.050.15剩余的61050.6-1.00.350.100.100.45-0.80.100.10 0.10    0.050.15剩余的61620.40-0.80.500.200.100.7-1.10.100.25 0.10    0.050.15剩余的62620.40-0.80.70.15-0.400.150.8-1.20.04-0.140.25 0.150.40-0.7 0.40-0.7 0.050.15剩余的63510.7-1.30.500.100.40-0.80.40-0.8 0.20 0.20    0.050.15剩余的64630.20-0.60.150.200.050.45-0.9 0.05      0.050.15剩余的70050.350.400.100.20-0.71.0-1.80.06-0.204.0-5.0 0.01-0.06   0.08-0.200.050.15剩余的70720.7 Si+Fe0.100.100.10 0.8-1.3      0.050.15剩余的70750.400.501.2-2.00.302.1-2.90.18-0.285.1-6.1 0.20    0.050.15剩余的71160.150.300.50-1.10.050.8-1.4 4.2-5.20.050.05 0.03  0.050.15剩余的71290.150.300.50-0.90.101.3-2.00.104.2-5.20.050.05 0.03  0.050.15剩余的71780.400.501.6-2.40.302.4-3.10.18-0.286.3-7.3 0.20    0.050.15剩余的†锰加铬必须介于0.12-0.50%