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ALUMINIUM
Aluminium 7020
Aluminium 7020
7020 Grade Aluminium Alloy is a heat treatable alloy that naturally hardens and therefore recovers properties in the heat affected zone after welding. It is a heat treatable aluminium alloy with zinc added as the main alloying element. This improves the mechanical properties of the material and increases its resistance to fatigue stress.
Usage Areas:
- Railway transport,
- Aircraft storage containers,
- Highly loaded construction components such as bridges and mobile cranes
- Armoured vehicles
- Motorcycle and bicycle frames
CHEMICAL PROPERTIES
| Alloy | Fe (%) | Cu (%) | Cr (%) | Al (%) | Si (%) | Zn (%) | Mn (%) | Mg (%) | Zi+Tİ (%) | Others (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| 7020 | 0.4 | 0.2 | 0.1-0.35 | Balance | 0.35 | 4.0-5.0 | 0.05-0.5 | 1.0-1.4 | 0.08-0.35 | 0.05 |
MECHANICAL PROPERTIES
| Temper | Yield Strength (MPa) min-max | Tensile Strength (MPa) min-max | Elongation (50%) min-max | Hardness (brinel) min-max |
|---|---|---|---|---|
| 0 | 80 | 180 - 45 | - | 55 |
| T5 | 290 - 315 | 350 - 375 | 8 - 14 | 10 |
| T6 | 290 - 315 | 350 - 380 | 8 - 12 | 105 - 125 |
