7020 Alloy Data Sheet
Introduction
7020 is used a lot in frame manufacture eg. motorbike or bicycle frames. It's high strength also make it useful in armoured vehicles.
7020 Aluminium Alloy Data Sheet
Properties given are typical and should only be used for comparisons of alloys. Actual values will depend on section specification.
| Forming | Good | |
| Machining | Good | |
| Welding | Not Suitable | |
| Brazing/Soldering | Not Suitable | |
| Protective Anodising | Fair | |
| Aesthetic Anodising | Not Suitable | |
| Mechanical Properties | ||
| Temper | T6 | |
| 0.2% Proof Stress Min N/mm2 | 290 | |
| Ultimate Tensile Strength Min N/mm2 | 350 | |
| Chemical Composition EN AW-7020 | |
|---|---|
| Si | 0.35 |
| Fe | 0.40 |
| Cu | 0.20 |
| Mn | 0.05-0.50 |
| Mg | 1.0-1.4 |
| Cr | 0.10-0.35 |
| Zn | 4.0-5.0 |
| Others (each) | 0.05 |
| Others (total) | 0.15 |
| Aluminium | Remainder |
(The chemical composition of aluminium and aluminium alloys is supplied in percentage by mass. Limits are expressed as a maximum unless shown as a range or a minimum.)
| Similar and Obsolete Specifications | |
|---|---|
| BS H17 | EN AW-7020 |
| ISO AlZn4.5Mg1 | |
Properties given are typical and should only be used for comparisons of alloys. Actual values will depend on section specification.
Aerospace materials are covered by the ‘L’ series of British standards.
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