EN 573-3 Grade 3.1655 T4 Aluminum Alloy – High Performance & Precision Machining
Aluminum DIN 3.1655 is a popular age-hardenable alloy known for its free-machining characteristics and mechanical properties. It can be machined to very close tolerances while still maintaining a smooth and bright finish. Unlike other aluminum alloys, DIN 3.1655 does not offer good corrosion resistance or weldability.
Properties
General
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Density | 2.82 g/cm³ | T4 | EN 573-3, EN 755 |
2.83 g/cm³ | T4 | EN 573-3, EN 755 |
Mechanical
| Property | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|
Bending Fatigue Strength | 125.0 MPa | T4 | EN 573-3, EN 755 | |
Elastic modulus | 70.0 GPa | T4 | EN 573-3, EN 755 | |
72.5 GPa | T4 | EN 573-3, 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 | 27.3 GPa | T4 | EN 573-3, EN 755 | |
Tensile strength | 275.0 MPa | T4 | EN 573-3, EN 755 |
Thermal
| Property | Temperature | Value | Condition | Related Standards |
|---|---|---|---|---|
Coefficient of thermal expansion | -50 °C | 2.14e-05 1/K | T4 | EN 573-3, EN 755 |
20 °C | 2.14e-05 1/K | T4 | EN 573-3, EN 755 | |
20 °C | 2.2899999999999998e-05 1/K | T4 | EN 573-3, EN 755 | |
20 °C | 2.3399999999999996e-05 1/K | T4 | EN 573-3, EN 755 | |
20 °C | 2.4e-05 1/K | T4 | EN 573-3, EN 755 | |
20 °C | 2.4999999999999998e-05 1/K | T4 | EN 573-3, EN 755 | |
100 °C | 2.2899999999999998e-05 1/K | T4 | EN 573-3, EN 755 | |
100 °C | 2.3399999999999996e-05 1/K | T4 | EN 573-3, EN 755 | |
200 °C | 2.4e-05 1/K | T4 | EN 573-3, EN 755 | |
300 °C | 2.4999999999999998e-05 1/K | T4 | EN 573-3, EN 755 | |
Melting point | 540.0 - 645.0 °C | T4 | EN 573-3, EN 755 | |
585.0 - 650.0 °C | T4 | EN 573-3, EN 755 | ||
Specific heat capacity | 864.0 J/(kg·K) | T4 | EN 573-3, EN 755 | |
Thermal conductivity | 151.0 - 172.0 W/(m·K) | T4 | EN 573-3, EN 755 | |
170.0 - 220.0 W/(m·K) | T4 | EN 573-3, EN 755 |
Electrical
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Electrical conductivity | 23000000.0 - 26000000.0 S/m | T4 | EN 573-3, EN 755 |
24000000.0 - 32000000.0 S/m | T4 | EN 573-3, EN 755 | |
Electrical resistivity | 3.13e-08 - 4.17e-08 Ω·m | T4 | EN 573-3, EN 755 |
3.85e-08 - 4.35e-08 Ω·m | T4 | EN 573-3, EN 755 |
Chemical properties
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Bismuth | 0.2 - 0.8 % | T4 | EN 573-3, EN 755 |
Copper | 5.0 - 6.0 % | T4 | EN 573-3, EN 755 |
Iron | 0.70 % | T4 | EN 573-3, EN 755 |
Lead | 0.2 - 0.6 % | T4 | EN 573-3, EN 755 |
Silicon | 0.4 % | T4 | EN 573-3, EN 755 |
Zinc | 0.3 % | T4 | EN 573-3, EN 755 |
Technological properties
| Property | ||
|---|---|---|
| Anodizing | decorative: not suitable, Protective: poor | |
| Brazing | hard brazing (with flux/ without flux): not suitable /, friction soldering: sufficient | |
| Corrosion properties | Seawater: poor, weathering: sufficient | |
| Workability | Deep drawing / upsetting (Condition) - / acceptable | |
Metal
- EN 573-3 Grade 3.0505 F Aluminium Alloy: Properties & Standards
- EN 573-3 Grade 3.1305 F Aluminium Alloy – Key Mechanical Properties
- EN 573-3 Grade 3.1305 O Aluminium: Key Mechanical Properties & Standards
- EN 573-3 Grade 3.1305 O3 – Comprehensive Aluminium Alloy Specifications
- EN 573-3 Grade 3.3316 F – Key Properties & Standards for 5000 Series Aluminium
- EN 573-3 Grade 3.1655 H13 – High-Performance Aluminum Alloy for Precision Machining
- EN 573-3 Grade 3.1655 H18 Aluminum Alloy – Superior Machining & Mechanical Strength
- EN 573-3 Grade 3.1655 O3 Aluminum Alloy – Characteristics & Applications
- EN 573-3 Grade 3.1655 F – High-Performance, Age-Hardenable Aluminum Alloy
- EN 573-3 Grade 3.1655 T6 – High-Performance, Free-Machining Aluminum Alloy