WL 3.4144-1 Grade 3.4144 H13: Premium Heat‑Treatable Aluminum Alloy for Aerospace
DIN 3.4144 is a heat treatable alloy that has very high mechanical properties and high fracture toughness. Popular with the aerospace industry, DIN 3.4144 offers good stress and corrosion cracking resistance and high strength at subzero temperatures.
Properties
General
| Property | Value | Comment |
|---|---|---|
Density | 2.7 - 2.85 g/cm³ | Typical for Wrought 7000 Series Aluminium |
Mechanical
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Elastic modulus | 69.0 - 72.0 GPa | Typical for Wrought 7000 Series Aluminium | ||||
Plane-Strain Fracture Toughnes | 22.0 - 35.0 MPa·√m | Typical for Wrought 7000 Series Aluminium | ||||
Poisson's ratio | 0.33 [-] | Typical for Wrought 7000 Series Aluminium | ||||
Shear modulus | 26.4 - 27.1 GPa | Typical for Wrought 7000 Series Aluminium | ||||
Shear strength | 20.0 °C | 280.0 - 320.0 MPa | H13 | WL 3.4144-1 | Wire | |
Tensile strength | 20.0 °C | 235.0 - 305.0 MPa | H13 | WL 3.4144-1 | Wire |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 2.3e-05 1/K | H13 | WL 3.4144-1 | Wire | |
200.0 °C | 2.43e-05 1/K | H13 | WL 3.4144-1 | Wire | ||
300.0 °C | 2.52e-05 1/K | H13 | WL 3.4144-1 | Wire | ||
Melting point | 465.0 - 655.0 °C | Typical for Wrought 7000 Series Aluminium | ||||
Specific heat capacity | 100.0 °C | 963.0 J/(kg·K) | H13 | WL 3.4144-1 | Wire | |
Thermal conductivity | 25.0 °C | 157.0 W/(m·K) | H13 | WL 3.4144-1 | Wire |
Electrical
| Property | Value | Comment |
|---|---|---|
Electrical conductivity | 18000000.0 - 34000000.0 S/m | Typical for Wrought 7000 Series Aluminium |
Electrical resistivity | 2.9e-08 - 5.6e-08 Ω·m | Typical for Wrought 7000 Series Aluminium |
Chemical properties
| Property | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|
Chromium | 0.04 | H13 | WL 3.4144-1 | Wire |
Copper | 2.0 - 2.6 % | H13 | WL 3.4144-1 | Wire |
Iron | 0.15 | H13 | WL 3.4144-1 | Wire |
Magnesium | 1.9 - 2.6 % | H13 | WL 3.4144-1 | Wire |
Manganese | 0.1 | H13 | WL 3.4144-1 | Wire |
Silicon | 0.12 | H13 | WL 3.4144-1 | Wire |
Titanium | 0.06 | H13 | WL 3.4144-1 | Wire |
Zinc | 5.7 - 6.7 % | H13 | WL 3.4144-1 | Wire |
Zirconium | 0.08 - 0.15 % | H13 | WL 3.4144-1 | Wire |
Technological properties
| Property | ||
|---|---|---|
| Brazing | Excellent | |
Metal
- EN 573-3 Grade 3.1305 H13 – High Strength Aluminium Alloy
- EN 573-3 Grade AW-1350 H13 Aluminium Alloy – Properties & Standards
- AA 6053 H13 Aluminum Alloy: Technical Specs & Standards
- AA Standards Grade 2117 H13 – Aluminium Alloy Specification
- ASTM B316 Grade 7050 H13: High-Strength Heat-Treatable Alloy for Aerospace Applications
- H13 Grade 3.2315 Steel – EN 573-3 Specification
- 3.4144-1 (T73) Grade: High-Performance Heat-Treatable Aluminium Alloy
- DIN 3.4144 Alloy – Grade 3.4144 T74: High Strength, Toughness, and Corrosion Resistance for Aerospace
- DIN 3.4144 T7451: High-Performance, Heat-Treatable Alloy for Aerospace Applications
- DIN 3.4144 T7452: High-Strength, Corrosion-Resistant Aerospace Alloy