7150 is a high-strength heat-treatable alloy with extremely high strength and resistance to spalling corrosion and stress corrosion cracking. Commonly used in aircraft structural parts for plate extrusions, free forgings and die forgings. The 7 series aluminum alloy belongs to Al-Zn-Mg-Cu series super-hard aluminum, which is an ultra-high-strength deformed aluminum alloy that has been widely used in the aircraft industry in the late 1940s and is still widely used in the aviation industry. Its characteristics are: good plasticity after solution treatment, particularly good heat treatment strengthening effect, high strength below 150 ℃, and particularly good low temperature strength; poor welding performance; tendency to stress corrosion cracking; need to be covered with aluminum or other Protective use. Two-stage aging can improve the alloy's resistance to stress corrosion cracking. The plasticity in the annealed and hardened state is slightly lower than 2A12 in the same state. It is slightly better than 7A04, the plate is subject to static fatigue. The notch is sensitive, and the stress corrosion performance is better than 7A04. The density is 2.75.
Features of 7150-T77511 ultra-wide aluminum plate
- 1. Compactness: The unique grain refining process guarantees that all aerospace product series have passed the ultrasonic flaw detection process inspection of aerospace aluminum alloy products, and there are no sand holes, cracks, bubbles and impurities.
- 2. Internal stress (artificial aging): perfect pre-stretching technology to eliminate internal stress, completely eliminate internal stress, the product does not warp, crack and deform during processing and stress.
- 3． Tolerance accuracy: All products meet the American Society for Testing and Materials (ASTM) and Aerospace Materials Specifications (AMS). The tolerance index of most products can exceed ASTM1 / 2 tolerance accuracy, and the tolerance index of some products can even exceed ASTM1 / 4. Standard tolerance accuracy.
