EN 573-3 Grade 3.1255 T6511: High-Performance Aluminum Alloy for Strength & Weldability
DIN 3.1255 is an alloy with strength, machinability and welding capabilities, Aluminum Alloy DIN 3.1255 is an excellent option. It is a precipitation hardening alloy that maintains strength after heat treatment.
Properties
General
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Density | 2.8 g/cm³ | T6511 | EN 573-3, EN 754, EN 755 |
Mechanical
| Property | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|
Elastic modulus | 73.0 GPa | T6511 | EN 573-3, EN 754, EN 755 | |
Plane-Strain Fracture Toughnes | 22.0 - 35.0 MPa·√m | Typical for Wrought 2000 Series Aluminium | ||
Poisson's ratio | 0.33 [-] | Typical for Wrought 2000 Series Aluminium | ||
Shear modulus | 27.4 GPa | T6511 | EN 573-3, EN 754, EN 755 | |
Tensile strength | 415.0 MPa | T6511 | EN 573-3, EN 755 | |
420.0 MPa | T6511 | EN 573-3, EN 755 | ||
430.0 MPa | T6511 | EN 573-3, EN 755 | ||
450.0 MPa | T6511 | EN 573-3, EN 754, EN 755 | ||
460.0 MPa | T6511 | EN 573-3, EN 755 | ||
465.0 MPa | T6511 | EN 573-3, EN 755 |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|---|
Coefficient of thermal expansion | -50 °C | 2.1e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | |
20 °C | 2.1e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
20 °C | 2.28e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
20 °C | 2.3e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
20 °C | 2.36e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
20 °C | 2.46e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
100 °C | 2.28e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
100 °C | 2.3e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
200 °C | 2.36e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
300 °C | 2.46e-05 1/K | T6511 | EN 573-3, EN 754, EN 755 | ||
Melting point | 505.0 - 635.0 °C | T6511 | EN 573-3, EN 754, EN 755 | ||
510.0 - 640.0 °C | T6511 | EN 573-3, EN 754, EN 755 | |||
Specific heat capacity | 816.0 - 963.0 J/(kg·K) | Typical for Wrought 2000 Series Aluminium | |||
Thermal conductivity | 134.0 - 193.0 W/(m·K) | T6511 | EN 573-3, EN 754, EN 755 | ||
140.0 - 200.0 W/(m·K) | T6511 | EN 573-3, EN 754, EN 755 |
Electrical
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Electrical conductivity | 20000000.0 - 29000000.0 S/m | T6511 | EN 573-3, EN 754, EN 755 |
21000000.0 - 24000000.0 S/m | T6511 | EN 573-3, EN 754, EN 755 | |
Electrical resistivity | 3.45e-08 - 5e-08 Ω·m | T6511 | EN 573-3, EN 754, EN 755 |
4.17e-08 - 4.76e-08 Ω·m | T6511 | EN 573-3, EN 754, EN 755 |
Chemical properties
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Chromium | 0.1 % | T6511 | EN 573-3, EN 754, EN 755 |
Copper | 3.9 - 5.0 % | T6511 | EN 573-3, EN 754, EN 755 |
Iron | 0.70 % | T6511 | EN 573-3, EN 754, EN 755 |
Magnesium | 0.2 - 0.8 % | T6511 | EN 573-3, EN 754, EN 755 |
Manganese | 0.4 - 1.2 % | T6511 | EN 573-3, EN 754, EN 755 |
Silicon | 0.5 - 1.2 % | T6511 | EN 573-3, EN 754, EN 755 |
Titanium | 0.15 % | T6511 | EN 573-3, EN 754, EN 755 |
Zinc | 0.25 % | T6511 | EN 573-3, EN 754, EN 755 |
Technological properties
| Property | ||
|---|---|---|
| Anodizing | decorative: not suitable, Protective: acceptable | |
| Brazing | hard brazing (with flux/ without flux): not suitable / not suitable, friction soldering: acceptable, soft brazing with flux: not suitable | |
| Corrosion properties | Seawater: sufficient, weathering: acceptable | |
| Workability | Bending / Spinning (cold): gut (O) / ungeeignet, Impact extrusion (cold): not suitable, Deep drawing / upsetting (Condition) acceptable (O) / not suitable | |
Metal
- EN 573-3 Grade 3.4345 T6511 Aluminium Alloy – Specifications & Properties
- EN 573-3 Grade 3.0615 T6511 – Key Mechanical Properties
- EN 573-3 AW-6056 T6511: Premium Age-Hardenable AlMgSi Alloy
- EN 573-3 Grade AW-6026 T6511 – Premium Age-Hardenable AlMgSi Alloy
- EN 573-3 Grade 3.1255 T652 – High-Strength Aluminum Alloy with Superior Machinability and Weldability
- EN 573-3 Grade 3.1255 H111 – Premium High‑Strength Aluminum Alloy
- EN 573-3 Grade 3.1255 T351 – High-Strength Aluminum Alloy
- EN 573-3 Grade 3.1255 T3510: High-Strength Precipitation Hardened Aluminum Alloy
- EN 573-3 Grade 3.1255 T3511 Aluminum Alloy – High Strength & Weldability
- EN 573-3 Grade 3.1255 (T4510) – High-Performance Aluminum Alloy