DIN 3.4144 T7451: High-Performance, Heat-Treatable Alloy for Aerospace Applications
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 | ||||
Elongation | 20.0 °C | 2.0 % | T7451 | WL 3.4144-1 | Plate | Transverse |
20.0 °C | 5.0 % | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 6.0 % | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 8.0 % | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 9.0 % | T7451 | WL 3.4144-1 | Plate | ||
Hardness, Brinell | 20.0 °C | 135.0 [-] | T7451 | WL 3.4144-1 | Plate | Transverse |
20.0 °C | 135.0 [-] | T7451 | WL 3.4144-1 | Plate | ||
Plane-Strain Fracture Toughnes | 20.0 °C | 25.4 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | |
20.0 °C | 25.4 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 30.1 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 29.0 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 26.9 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 25.5 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.4 - 27.2 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 30.1 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 29.0 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 26.9 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 25.5 - 27.2 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 30.1 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 29.0 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 26.9 - 27.2 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 - 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 - 30.1 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 - 29.0 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 27.2 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 29.0 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 29.0 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 29.0 - 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 29.0 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 29.0 - 30.1 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 29.0 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 30.1 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 30.1 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 30.1 - 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 30.1 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 30.1 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 32.6 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 32.6 - 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 32.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 32.6 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 34.3 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 34.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 34.3 - 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 36.3 - 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 36.3 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 39.6 MPa·√m | T7451 | WL 3.4144-1 | Plate | ||
Poisson's ratio | 0.33 [-] | Typical for Wrought 7000 Series Aluminium | ||||
Shear modulus | 26.4 - 27.1 GPa | Typical for Wrought 7000 Series Aluminium | ||||
Tensile strength | 20.0 °C | 435.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse |
20.0 °C | 445.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 455.0 MPa | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 460.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 465.0 MPa | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 470.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 475.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 480.0 MPa | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 490.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse | |
20.0 °C | 490.0 MPa | T7451 | WL 3.4144-1 | Plate | ||
20.0 °C | 495.0 MPa | T7451 | WL 3.4144-1 | Plate | Transverse |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 2.3e-05 1/K | T7451 | WL 3.4144-1 | Plate | |
200.0 °C | 2.43e-05 1/K | T7451 | WL 3.4144-1 | Plate | ||
300.0 °C | 2.52e-05 1/K | T7451 | WL 3.4144-1 | Plate | ||
Melting point | 465.0 - 655.0 °C | Typical for Wrought 7000 Series Aluminium | ||||
Specific heat capacity | 100.0 °C | 963.0 J/(kg·K) | T7451 | WL 3.4144-1 | Plate | |
Thermal conductivity | 25.0 °C | 157.0 W/(m·K) | T7451 | WL 3.4144-1 | Plate |
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 | T7451 | WL 3.4144-1 | Plate |
Copper | 2.0 - 2.6 % | T7451 | WL 3.4144-1 | Plate |
Iron | 0.15 | T7451 | WL 3.4144-1 | Plate |
Magnesium | 1.9 - 2.6 % | T7451 | WL 3.4144-1 | Plate |
Manganese | 0.1 | T7451 | WL 3.4144-1 | Plate |
Silicon | 0.12 | T7451 | WL 3.4144-1 | Plate |
Titanium | 0.06 | T7451 | WL 3.4144-1 | Plate |
Zinc | 5.7 - 6.7 % | T7451 | WL 3.4144-1 | Plate |
Zirconium | 0.08 - 0.15 % | T7451 | WL 3.4144-1 | Plate |
Technological properties
| Property | ||
|---|---|---|
| Brazing | Excellent | |
Metal
- EN 12167 CuAl10Fe3Mn2 H130 – High‑Strength Cold‑Formed Alloy
- ASTM B316 Grade 7050-O: High-Performance Heat‑Treatable Aluminum Alloy for Aerospace
- WL 3.4144-1 Grade 3.4144 H13: Premium Heat‑Treatable Aluminum Alloy for Aerospace
- 3.4144-1 (T73) Grade: High-Performance Heat-Treatable Aluminium Alloy
- ASTM B316 Grade 7050 T7 – Heat‑Treatable Aluminum Alloy Offering Superior Strength and Corrosion Resistance
- WL 3.4394 T7451 Steel – High Strength, Toughness & Corrosion Resistance
- DIN 1725‑2 Grade 3.2582 F – Premium GD‑AlSi12 Eutectic Alloy for Corrosion‑Resistant, Fatigue‑Loaded Cast Parts
- DIN 3.4144 Alloy – Grade 3.4144 T74: High Strength, Toughness, and Corrosion Resistance for Aerospace
- DIN 3.4144 T7452: High-Strength, Corrosion-Resistant Aerospace Alloy
- EN 573-3 Grade AW-7010 T7451 Aluminum Zinc Alloy – Technical Specifications