Learn what is 7075 aluminum alloy?

2023-07-24

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7075 aluminum alloy is a cold-treated forged alloy with high strength, far better than mild steel. 7075 is one of the most powerful alloys commercially available. 7075 material generally adds a small amount of copper, chromium and other alloys, the series of 7075-T651 aluminum alloy is particularly high-grade, known as the best aluminum alloy products, high strength, better than any mild steel. This alloy also has good mechanical properties and anodic reaction. Representative uses include aerospace, mold processing, mechanical equipment, tooling fixtures, especially for the manufacture of aircraft structures and other high-stress structures requiring high strength and strong corrosion resistance. So how to understand what is 7075 aluminum alloy? Let Nobo Smart Manufacture tell you

GB standard: 7A09 GB/T3190--1996
Japanese standard: A7075 JIS H4000-1999 JIS H4080-1999
Non-standard: 76528 IS 733-2001 IS737-2001
Russian standard: B95/1950 rocT 4785-1974
EN:EN AW-7075/AlZn5.5MgCu EN573-3-1994
German standard: AlZnMgCu1.5/3.4365 DIN172.1-1986/w-nr
Legal standard: 7075 (A-Z5GU) NFA50-411 NFA50-451
British standard: 7075 (C77S) BS 1470-1988
American Standard: 7075/A97075 AA/UNS

Physical characteristics
Tensile strength: 524Mpa
0.2% yield strength: 455Mpa
Modulus of elasticity E: 71GPa
Hardness: 150HB
Density: 2.81g/cm^3
Main uses
Aerospace industry, blow molding (bottle) mold, ultrasonic plastic welding mold, golf head, shoe mold, paper mold, foam molding mold, dewaxing mold, template, fixture, mechanical equipment, mold processing, used to make high-end aluminum alloy bicycle frame.
Chemical composition
Silicon Si: 0.40
Fe: 0.50
Copper Cu: 1.2-2.0
Manganese Mn: 0.30
Magnesium Mg: 2.1-2.9
Chromium Cr: 0.18-0.28
Zinc Zn: 5.1-6.1
Titanium Ti: 0.20
Aluminum Al: Margin
Other: Single: 0.05 Total: 0.15
peculiarity
1. High-strength heat-treatable alloy.
2. Good mechanical properties.
3. Good usability.
4. Easy to process, good wear resistance.
5. Good corrosion resistance and oxidation resistance.
Mechanical properties
1. Tensile strength σb (MPa): ≥560
2. Elongation stress σp0.2 (MPa): ≥495
3. Elongation δ5 (%): ≥6
Note: Mechanical properties of seamless tubes
Specimen size: diameter> 12.5

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