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| Color: | Silver |
| Application: | Transportation Tools, Door & Window, Glass Wall, Heat Sink, Decorations |
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7020 aluminum is a 7000-series aluminum alloy: the main alloying addition is zinc and it is formulated for primary forming into wrought products. 7020 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-7020. H17 is the British Standard (BS) designation. A97020 is the UNS number. Additionally, the EN chemical designation is AlZn4,5Mg1. And the AFNOR (French) designation is A-Z5G.
It originally received its standard designation in 1972.
It can have the lowest tensile strength among the 7000-series alloys in the database.
The properties of 7020 aluminum include six common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 7020 aluminum to: 7000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
7020-O Aluminum7020-T4 Aluminum
7020-T451 Aluminum7020-T6 Aluminum
7020-T62 Aluminum7020-T651 Aluminum
The principal alloying ingredients in aluminium / aluminum alloys include manganese, magnesium, copper, zinc and silicon. The market for aluminium / aluminum and its alloys is huge. About 22 million t is newly manufactured aluminium and 7 million t is recycled aluminium scrap.
Aluminium / aluminum 7020 alloy is a heat treatable wrought alloy. Zinc forms a major part of this alloy.
The following datasheet will provide more details about aluminium / aluminum 7020 alloy.
2.[aluminium alloy 7020 /AlZn4.5Mg1/3.4335/H17/ A97020]
Application:
Aluminium / aluminum 7020 alloy is chiefly used in the following areas:
The following table shows the chemical composition of aluminium / aluminum 7020 alloy.
| Element | Content (%) |
|---|---|
| Zinc, Zn | 4-5 |
| Magnesium, Mg | 1-1.40 |
| Zirconium, Zr + Titanium, Ti | 0.80 - 0.25 |
| Iron, Fe | 0.4 |
| Silicon, Si | 0.35 |
| Copper, Cu | 0.2 |
| Chromium, Cr | 0.10 - 0.35 |
| Zirconium, Zr | 0.080 - 0.20 |
| Manganese, Mn | 0.050 - 0.50 |
| Other (each) | 0.05 max |
| Other (total) | 0.15 max |
| Aluminum, Al | Remainder |
The physical properties of aluminium / aluminum 7020 alloy are outlined in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 2.78 g/cm³ | 0.100 lb/in³ |
The mechanical properties of aluminium / aluminum 7020-T6 alloy are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (@thickness ≤100 mm/≤3.94 in) | ≥ 350 MPa | ≥ 50800 psi |
| Yield strength (@thickness ≤100 mm/≤3.94 in) | ≥ 280 MPa | ≥ 40600 psi |
| Elongation at break (@thickness ≤100 mm/≤3.94 in) | ≥ 10% | ≥ 10% |
The thermal properties of aluminium / aluminum 7020-T6 alloy are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-100°C/68-212°F) | 23.1 µm/m°C | 12.8 µin/in°F |
| Thermal conductivity | 137 W/mK | 951 BTU in/hr.ft².°F |
Equivalent materials to aluminium / aluminum 7020 alloy are listed below:
Forming and machining of aluminium / aluminum 7020 alloy is good. Welding, aesthetic anodizing and brazing or soldering is not suitable; however protective anodizing can be performed if required.
4.[aluminium alloy 7020 /AlZn4.5Mg1/3.4335/H17/ A97020]
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