EN AW-2017A · AlCu4MgSi(A)
The original 'duralumin'-type alloy: strong, tough and easy to machine, with excellent riveting characteristics. Still the standard bar alloy for general high-strength machined parts across European industry.
Material Data
Composition and physical properties
| Element | Limit / range |
|---|---|
| Si | 0.20 – 0.8 |
| Fe | ≤ 0.7 |
| Cu | 3.5 – 4.5 |
| Mn | 0.40 – 1.0 |
| Mg | 0.40 – 1.0 |
| Zn | ≤ 0.25 |
| Cr | ≤ 0.10 |
| Al | balance |
Limits per EN 573-3 / applicable registration. The governing specification on your order prevails.
| Property | Value |
|---|---|
| Density | 2.79 g/cm³ |
| Melting range | 513 – 640 °C |
| Thermal expansion (20–100 °C) | 23.0 µm/m·K |
| Elastic modulus | 72.5 GPa |
| Thermal conductivity | 134 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) |
|---|---|---|---|---|
| O | 70 | 180 | 20 | 45 |
| T3 / T3511 | 270 | 400 | 14 | 105 |
| T4 / T451 / T42 | 275 | 425 | 15 | 105 |
| T6 | 320 | 440 | 10 | 115 |
Designations & Standards
How this alloy appears on drawings
| System | Designation |
|---|---|
| ISO / EN designation | AlCu4MgSi(A) |
| EN numeric | EN AW-2017A |
| UNS | A92017 |
| Werkstoff-Nr. | 3.1325 |
| Common product standards | AMS 4110, AMS QQ-A-225/5 · ASTM B211, B221 · EN 573-3 / EN 754-2 · WNr 3.1325 |
Supply Program
Available from Lipol as
| Product form | Standard | Alloy | Temper | Category |
|---|---|---|---|---|
| Bar / Flat | AMS 4110 | 2017 | T4 | Aerospace & Defense |
| Bar / Flat | ASTM B221 | 2017A | T6 | Aerospace & Defense |
| Bar / Flat | WNR 3.1325 | 2017A | T3 | Aerospace & Defense |
| Tube / Profile / Extrusion | AMS QQ-A-225/5 | 2017A | T4 | Aerospace & Defense |
| Tube / Profile / Extrusion | ASTM B221 | 2017A | T4510/T4511 | Aerospace & Defense |
| Plate | UNS A92017 | 2017 | O | General Industry |
| Cold-Drawn Bar | EN 754-2 | 2017 | T3 | Cold Drawing |
| Cold-Drawn Bar | EN 754-2 | 2017 | T351 | Cold Drawing |
| Cold-Drawn Bar | EN 754-2 | 2017 | T451 | Cold Drawing |
| Cold-Drawn Bar | EN 754-2 | 2017 | T651 | Cold Drawing |
| Cold-Drawn Bar | EN 754-2 | 2017A | T3511 | Cold Drawing |
| Cold-Drawn Bar | EN 754-2 | 2017A | T42 | Cold Drawing |
| Cold-Drawn Tube | EN 754-7/-8 | 2017A | T3510 | Cold Drawing |
Additional tempers, forms and specifications available on request — the table shows the standard program.
Applications
Where EN AW-2017A is the right answer
- Machined structural parts and fixtures
- Rivets and fasteners
- Machine-building components
- Tooling and jigs
Specifying EN AW-2017A?
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-2017A is the right alloy?
Describe the application — load, environment, joining, finishing — and our engineers will confirm the choice or propose a better-value alternative.