7075 aluminum bar

The 7-series aluminum alloy and is still widely used in aviation industry.Its characteristic is that after solid solution treatment and plastic, heat treatment reinforcement effect is very good, below 150 ° C with high strength, and has very good strength at low temperature;Poor welding performance;Stress corrosion cracking tendency;To be used with aluminum or other protective treatment.Two-stage aging can improve the ability of alloy to resist stress corrosion cracking.Under annealing and quenching, the plasticity is slightly lower than that of 2A12 in the same state.
(1). Use
The 7075 varieties are divided into plate, thick plate, rod, type, row, wire, rolled or cold-processed bar, cold-processed wire.There are O state, T6 state, T651 state, T6511 state, T73 state, T7351 state, T7651 state, T76511 state and H13 state.Typical applications: aerospace industry, blow molding (bottle) mould, ultrasonic plastic welding mould, golfer ball head, shoe mould, paper mould, foaming molding mould, dewaxing mould, template, fixture, machinery equipment, mould processing and other anti-corrosion high-stress structural parts.
(2). Features of 7075 aluminum bar
1. High strength heat treatable alloy.
2. Good mechanical performance.
3. Good usability.
4. Easy to process and good abrasion resistance.
5. Good corrosion resistance and oxidation resistance.
6. Good anodic oxidation effect.
(3)Tensile strength and heat treatment of  7075 aluminium sheet
Zinc is the main alloy element in 7075, adding magnesium to the alloy containing 3\%-7.5 % zinc can form MgZn2 with significant strengthening effect, which makes the heat treatment effect of this alloy far better than that of al-zinc binary alloy.The tensile strength will be further improved by increasing the content of zinc and magnesium in the alloy, but its ability to resist stress corrosion and peeling corrosion will be decreased.After heat treatment, very high strength properties can be achieved.The 7075 materials are generally added with a small amount of copper, chromium and other alloys, among which 7075-aluminum alloy bar is the most superior product. It is regarded as the best product of aluminum alloy, with high strength and far superior to any soft steel.