EN AW-6351 · AlSi1Mg0.5Mn
A close sibling of 6082 developed for extrusion, offering slightly better toughness at equivalent strength — common in structural tube and profiles across Commonwealth-heritage specifications.
Material Data
Composition and physical properties
| Element | Limit / range |
|---|---|
| Si | 0.7 – 1.3 |
| Fe | ≤ 0.50 |
| Cu | ≤ 0.10 |
| Mn | 0.40 – 0.8 |
| Mg | 0.40 – 0.8 |
| Zn | ≤ 0.20 |
| Ti | ≤ 0.20 |
| Al | balance |
Limits per EN 573-3 / applicable registration. The governing specification on your order prevails.
| Property | Value |
|---|---|
| Density | 2.71 g/cm³ |
| Melting range | 555 – 650 °C |
| Thermal expansion (20–100 °C) | 23.4 µm/m·K |
| Elastic modulus | 69 GPa |
| Thermal conductivity | 176 W/m·K |
| Electrical conductivity | 46 % 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) |
|---|---|---|---|---|
| T4 | 150 | 250 | 20 | 65 |
| T6 | 285 | 320 | 12 | 95 |
Designations & Standards
How this alloy appears on drawings
| System | Designation |
|---|---|
| ISO / EN designation | AlSi1Mg0.5Mn |
| EN numeric | EN AW-6351 |
| UNS | A96351 |
| Werkstoff-Nr. | — |
| Common product standards | ASTM B221 · EN 573-3 · UNS A96351 |
Supply Program
Available from Lipol as
| Product form | Standard | Alloy | Temper | Category |
|---|---|---|---|---|
| Bar / Flat | ASTM B221 | 6351 | T4 | Aerospace & Defense |
| Plate | EN AW | 6351 | T6 | Machinery, Automotive & Mold |
Additional tempers, forms and specifications available on request — the table shows the standard program.
Applications
Where EN AW-6351 is the right answer
- Structural extrusions and tube
- Vehicle frames
- Marine structural sections
- Pipeline components
Specifying EN AW-6351?
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-6351 is the right alloy?
Describe the application — load, environment, joining, finishing — and our engineers will confirm the choice or propose a better-value alternative.