6061-T6 profiles
6061 extrusions: 240 MPa proof and 260 MPa tensile; Eurocode 9 designs them with the same values up to 20 mm.
Common in North America; in Europe 6082 usually takes its place. For 6061 sheet and plate (ASTM B209) see 6061-T6.
- 0.2 % proof strength Rp0.2
- ≥ 240MPaTrade sources only5–25 mm
- Tensile strength Rm
- ≥ 260MPaTrade sources only5–25 mm
- Elongation after fracture A
- ≥ 10%Trade sources only5–25 mm · A (L₀ = 5.65√S₀)
- Characteristic proof strength fo
- 240MPaFrom the standard≤ 20 mm
- Characteristic ultimate strength fu
- 260MPaFrom the standard≤ 20 mm
- HAZ proof strength fo,haz
- 115MPaFrom the standard≤ 20 mm
- HAZ ultimate strength fu,haz
- 175MPaFrom the standard≤ 20 mm
All values
- Identity and composition not yet
- Mechanical 6
- Design values 4
- Physical not yet
- Thermal not yet
- Fire not yet
- Chemical and durability not yet
Mechanical
Strength
0.2 % proof strength Rp0.2
Minimum 0.2 % proof strength guaranteed by the product standard.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 240MPa | Trade sources only | |
| ≥ 240MPa | Trade sources only |
Tensile strength Rm
Ultimate tensile strength. Product standards give a range or a minimum.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 260MPa | Trade sources only | |
| ≥ 260MPa | Trade sources only |
Ductility
Elongation after fracture A
Minimum elongation; depends on gauge length and test direction.
| Condition | Value | Evidence |
|---|---|---|
| ≥ 8% | Trade sources only | |
| ≥ 10% | Trade sources only |
Design values
Characteristic proof strength fo
fo for design to Eurocode 9 (before partial factors).
| Condition | Value | Evidence |
|---|---|---|
| 240MPa | From the standard |
Characteristic ultimate strength fu
fu for design to Eurocode 9.
| Condition | Value | Evidence |
|---|---|---|
| 260MPa | From the standard |
HAZ proof strength fo,haz
0.2 % proof strength in the heat-affected zone of a weld (Eurocode 9).
| Condition | Value | Evidence |
|---|---|---|
| 115MPa | From the standard |
HAZ ultimate strength fu,haz
Ultimate strength in the heat-affected zone of a weld (Eurocode 9).
| Condition | Value | Evidence |
|---|---|---|
| 175MPa | From the standard |
Not yet verified for this grade
- EN 755-2 values from an extruder's datasheet (only stockholders found so far)
Missing on purpose: a value appears here only once a public source states it.
Sources here are public pages that reproduce EN 755-2. For design and acceptance, the standard edition named in your specification and the inspection certificate (EN 10204 3.1) of the delivered product take precedence. Design factors are recommended values; your National Annex may set others.