Remark :

1. 7A09, Its characteristics are good plasticity aftersolid solution treatment, heat treatment strengthening effect is particularly good, has a high strength below 150℃, and has a particularly good low temperature strength; Poor welding performance; Prone to stress corrosion cracking; Need to be coated with aluminum or other protective treatment. The resistance to stress corrosion cracking can be improved by two - stage aging. Under annealing and hardening conditions, the plasticity is slightly lower than that of 2A12 in the same state, slightly better than that of 7A04, and the static fatigue of the plate. Notch sensitive, better than 7A04 stress corrosion performance

Wuxi Chengyue Metal Materials Co., Ltd. is located in Wuxi City, Jiangsu Province. It is a diversified private enterprise. Chengyue Metal and some well-known iron and steel enterprises have jointly established a number of steel production lines: 24 steel production lines with an annual output of 100,000 tons; 48 pipe production lines, with an annual production capacity of 800,000 tons; carbon steel inventory of more than 5,000 tons.

Now we can supply all kinds of aluminum materials, aluminum sheets, aluminum coils, aluminum bars, Aluminium materialss, aluminum round tubes, aluminum round plates, etc. Our products are very complete, creating a one-stop service for customers. The main markets are Southeast Asia, Middle East, Europe, South America, North America, Central Asia and East Asia. We always adhere to the service concept of "excellence, win-win cooperation", with the best steel quality, strict quality management, perfect after-sales service, reasonable price, good customer reputation, and the business philosophy of integrity.