EN 573-3 Grade 3.1355 F Aluminum Alloy – Aircraft-Grade Strength & Machinability
Aluminum DIN 3.1355, known for its use in aircraft industry, is an alloy that offers excellent strength. When in the annealed condition it is readily formed and has good machinability. Though it has a relatively low level of corrosion resistance, it can be machined to a high finish.
Properties
General
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Density | 2.77 g/cm³ | F | EN 573-3, EN 1715-3 |
2.78 g/cm³ | F | EN 573-3, EN 1715-3 |
Mechanical
| Property | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|
Elastic modulus | 73.0 GPa | F | EN 573-3, EN 1715-3 | |
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 | F | EN 573-3, EN 1715-3 | |
Tensile strength | 200.0 - 440.0 MPa | F | EN 573-3, EN 1715-3 | |
200.0 - 280.0 MPa | F | EN 573-3, EN 1715-3 |
Thermal
| Property | Temperature | Value | Condition | Related Standards |
|---|---|---|---|---|
Coefficient of thermal expansion | -50 °C | 2.11e-05 1/K | F | EN 573-3, EN 1715-3 |
20 °C | 2.11e-05 1/K | F | EN 573-3, EN 1715-3 | |
20 °C | 2.2899999999999998e-05 1/K | F | EN 573-3, EN 1715-3 | |
20 °C | 2.3199999999999998e-05 1/K | F | EN 573-3, EN 1715-3 | |
20 °C | 2.38e-05 1/K | F | EN 573-3, EN 1715-3 | |
20 °C | 2.4699999999999997e-05 1/K | F | EN 573-3, EN 1715-3 | |
100 °C | 2.2899999999999998e-05 1/K | F | EN 573-3, EN 1715-3 | |
100 °C | 2.3199999999999998e-05 1/K | F | EN 573-3, EN 1715-3 | |
200 °C | 2.38e-05 1/K | F | EN 573-3, EN 1715-3 | |
300 °C | 2.4699999999999997e-05 1/K | F | EN 573-3, EN 1715-3 | |
Melting point | 505.0 - 640.0 °C | F | EN 573-3, EN 1715-3 | |
505.0 - 635.0 °C | F | EN 573-3, EN 1715-3 | ||
Specific heat capacity | 875.0 J/(kg·K) | F | EN 573-3, EN 1715-3 | |
Thermal conductivity | 121.0 - 193.0 W/(m·K) | F | EN 573-3, EN 1715-3 | |
130.0 - 150.0 W/(m·K) | F | EN 573-3, EN 1715-3 |
Electrical
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Electrical conductivity | 17000000.0 - 29000000.0 S/m | F | EN 573-3, EN 1715-3 |
18000000.0 - 21000000.0 S/m | F | EN 573-3, EN 1715-3 | |
Electrical resistivity | 3.45e-08 - 5.88e-08 Ω·m | F | EN 573-3, EN 1715-3 |
4.76e-08 - 5.56e-08 Ω·m | F | EN 573-3, EN 1715-3 |
Chemical properties
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Chromium | 0.1 % | F | EN 573-3, EN 1715-3 |
Copper | 3.8 - 4.9 % | F | EN 573-3, EN 1715-3 |
Iron | 0.50 % | F | EN 573-3, EN 1715-3 |
Magnesium | 1.2 - 1.8 % | F | EN 573-3, EN 1715-3 |
Manganese | 0.3 - 0.9 % | F | EN 573-3, EN 1715-3 |
Silicon | 0.5 % | F | EN 573-3, EN 1715-3 |
Titanium | 0.15 % | F | EN 573-3, EN 1715-3 |
Zinc | 0.25 % | F | EN 573-3, EN 1715-3 |
Technological properties
| Property | ||
|---|---|---|
| Anodizing | decorative: not suitable, Protective: good | |
| Brazing | hard brazing (with flux/ without flux): not suitable / not suitable, friction soldering: acceptable, soft brazing with flux: not suitable | |
| Corrosion properties | Seawater: poor, weathering: poor | |
| Workability | Bending / Spinning (cold): sufficient (O) / acceptable (O), Impact extrusion (cold): acceptable (O), Deep drawing / upsetting (Condition) acceptable (O) / sufficient (O) | |
Metal
- EN 573-3 Grade 3.1355 H18 – High‑Strength Aluminum Alloy for Aerospace Applications
- EN 573-3 Grade 3.1355 O3 Aluminum Alloy – Aircraft‑Grade Strength & Machinability
- EN 573-3 Grade 3.1355 H13 Aluminum – High Strength, Formability & Machinability
- EN 573-3 Grade 3.1355 H111 – High-Strength Aluminum Alloy for Aerospace Applications
- EN 573-3 Grade 3.1355 T3510 Aluminum Alloy – Aircraft‑Grade Strength & Machinability
- EN 573-3 Grade 3.1355 T3511 Aluminum Alloy – High Strength for Aerospace Applications
- EN 573-3 Grade 3.1355 T651 – High-Strength Aluminum Alloy for Aerospace
- EN 573-3 Grade 3.1355 T8510 – Premium Aircraft‑Grade Aluminum Alloy
- EN 573-3 Grade 3.1355 (T8511) – High-Strength Aluminum Alloy for Aerospace Applications
- EN 573-3 Grade 3.1355 T8 Aluminum Alloy – High Strength, Excellent Machinability