EN AW-7022 · AlZn5Mg3Cu
The classic European mold-plate alloy: 7000-series hardness with good dimensional stability after machining, sold widely as pre-machined tooling plate for plastics molds.
Material Data
Composition and physical properties
| Element | Limit / range |
|---|---|
| Si | ≤ 0.50 |
| Fe | ≤ 0.50 |
| Cu | 0.50 – 1.0 |
| Mn | 0.10 – 0.40 |
| Mg | 2.6 – 3.7 |
| Zn | 4.3 – 5.2 |
| Cr | 0.10 – 0.30 |
| Al | balance |
Limits per EN 573-3 / applicable registration. The governing specification on your order prevails.
| Property | Value |
|---|---|
| Density | 2.76 g/cm³ |
| Melting range | 480 – 640 °C |
| Thermal expansion (20–100 °C) | 23.6 µm/m·K |
| Elastic modulus | 72 GPa |
| Thermal conductivity | 150 W/m·K |
| Electrical conductivity | 34 % IACS |
Strength Data
Mechanical properties by temper
Typical room-temperature values for orientation. Design minimums depend on product form, thickness and the governing specification — request the applicable table with your inquiry.
| Temper | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| T651 | 420 | 470 | 7 | 135 |
Designations & Standards
How this alloy appears on drawings
| System | Designation |
|---|---|
| ISO / EN designation | AlZn5Mg3Cu |
| EN numeric | EN AW-7022 |
| UNS | A97022 |
| Werkstoff-Nr. | 3.4345 |
| Common product standards | ASTM B209 · EN 573-3 · WNr 3.4345 · mold-plate producer grades |
Supply Program
Available from Lipol as
| Product form | Standard | Alloy | Temper | Category |
|---|---|---|---|---|
| Plate | ASTM B209 | 7022 | T651 | Aerospace & Defense |
Additional tempers, forms and specifications available on request — the table shows the standard program.
Applications
Where EN AW-7022 is the right answer
- Injection and blow molds
- Foaming tools
- Machine parts under high load
- Backing and clamping plates
Specifying EN AW-7022?
State the temper, product form, dimensions and governing standard from the tables above, and we will confirm availability with a firm price and delivery date — typically within one business day.
Request a QuoteMaterial Engineering
Not sure EN AW-7022 is the right alloy?
Describe the application — load, environment, joining, finishing — and our engineers will confirm the choice or propose a better-value alternative.