Remark:
7A09 belongs to Al-Zn-Mg-Cu super duralumin, which has been applied in the aircraft manufacturing industry since the late 1940s and is still widely used in the aviation industry. Its characteristics are good plasticity after solid 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.
1. Q: Are you a manufacturer or trading company?
A: We are a professional manufacturer with 1.5 million tons of aluminum annually in China. We have passed the factory inspection by various international organizations and have our own sales team. Welcome to seeing and inspecting our factory
2. Q: Do you have quality control system?
A: Yes,we have iso,bv,sgs certifications and our own quality contorl laboratory.
3. Q: How long is your delivery time?