WL 3.4384 Grade 3.4384 T7351 – Robust Aluminum Alloy Derived from 7075 for Superior Toughness
DIN 3.4384, derived from Aluminum 7075, provides excellent toughness for a broad variety of applications. This alloy offers several metalworking options that include machining, forming, and heat treating. For machining, DIN 3.4384 functions best in the annealed condition and should be used with oil-based lubricants. It is also most easily formed in the annealed condition, as its hardened state results in spring-back. This alloy is typically available in flat rolled products, and it is widely used for applications that require high strength, including planes and other aerospace assemblies.
Properties
General
| Property | Temperature | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|---|
Density | 2.8 g/cm³ | T7351 | WL 3.4384 | Plate | |
20.0 °C | 2.8 g/cm³ | T7351 | WL 3.4384 | Plate |
Mechanical
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Bulk Modulus | 20.0 °C | 73.0 GPa | T7351 | WL 3.4384 | Plate | |
Elastic modulus | 71.0 GPa | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 71.0 GPa | T7351 | WL 3.4384 | Plate | ||
Elongation | 6.0 % | T7351 | WL 3.4384 | Plate | A50 | |
7.0 % | T7351 | WL 3.4384 | Plate | A50 | ||
20.0 °C | 6.0 % | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 7.0 % | T7351 | WL 3.4384 | Plate | ||
Hardness, Brinell | 130.0 [-] | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 130.0 [-] | T7351 | WL 3.4384 | Plate | ||
Plane-Strain Fracture Toughnes | 20.0 °C | 27.5 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | |
20.0 °C | 27.5 - 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 27.5 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 27.5 - 42.3 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 27.5 - 36.6 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 32.8 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 32.8 - 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 32.8 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 32.8 - 42.3 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 32.8 - 36.6 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.0 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.0 - 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.0 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.0 - 42.3 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.0 - 36.6 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.6 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.6 - 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.6 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.6 - 42.3 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.6 - 41.7 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 36.6 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 41.7 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 41.7 - 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 41.7 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 41.7 - 42.3 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 42.3 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 42.3 - 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 42.3 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 42.3 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 43.4 - 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 43.4 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 43.4 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 50.2 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 50.2 - 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 50.5 MPa·√m | T7351 | WL 3.4384 | Plate | ||
Poisson's ratio | 0.33 [-] | Typical for Wrought 7000 Series Aluminium | ||||
Shear modulus | 27.0 GPa | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 27.0 GPa | T7351 | WL 3.4384 | Plate | ||
Tensile strength | 420.0 MPa | T7351 | WL 3.4384 | Plate | ||
440.0 MPa | T7351 | WL 3.4384 | Plate | |||
460.0 MPa | T7351 | WL 3.4384 | Plate | |||
470.0 MPa | T7351 | WL 3.4384 | Plate | |||
480.0 MPa | T7351 | WL 3.4384 | Plate | |||
20.0 °C | 420.0 MPa | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 440.0 MPa | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 460.0 MPa | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 470.0 MPa | T7351 | WL 3.4384 | Plate | ||
20.0 °C | 480.0 MPa | T7351 | WL 3.4384 | Plate |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|---|
Coefficient of thermal expansion | 20 °C | 2.3399999999999996e-05 1/K | T7351 | WL 3.4384 | Plate |
100 °C | 2.3399999999999996e-05 1/K | T7351 | WL 3.4384 | Plate | |
100.0 °C | 2.34e-05 1/K | T7351 | WL 3.4384 | Plate | |
Melting point | 480.0 - 640.0 °C | T7351 | WL 3.4384 | Plate | |
Specific heat capacity | 880.0 J/(kg·K) | T7351 | WL 3.4384 | Plate | |
100.0 °C | 880.0 J/(kg·K) | T7351 | WL 3.4384 | Plate | |
Thermal conductivity | 168 W/(m·K) | T7351 | WL 3.4384 | Plate | |
20.0 °C | 168.0 W/(m·K) | T7351 | WL 3.4384 | Plate |
Electrical
| Property | Temperature | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|---|
Electrical conductivity | 24000000.0 S/m | T7351 | WL 3.4384 | Plate | |
20.0 °C | 24000000.0 S/m | T7351 | WL 3.4384 | Plate | |
Electrical resistivity | 4.17e-08 Ω·m | T7351 | WL 3.4384 | Plate |
Chemical properties
| Property | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|
Chromium | 0.18 - 0.25 % | T7351 | WL 3.4384 | Plate |
Copper | 1.2 - 1.9 % | T7351 | WL 3.4384 | Plate |
Iron | 0.12 % | T7351 | WL 3.4384 | Plate |
0.12 % | T7351 | WL 3.4384 | Plate | |
Magnesium | 1.9 - 2.6 % | T7351 | WL 3.4384 | Plate |
Manganese | 0.06 % | T7351 | WL 3.4384 | Plate |
Silicon | 0.1 % | T7351 | WL 3.4384 | Plate |
Titanium | 0.06 % | T7351 | WL 3.4384 | Plate |
Zinc | 5.2 - 6.2 % | T7351 | WL 3.4384 | Plate |
Technological properties
| Property | ||
|---|---|---|
| Brazing | Excellent | |
Metal
- ASTM A514 Grade F Low-Carbon Steel – Key Properties & Applications
- EN 10305-5 Grade St 33 Welded Precision Steel Tubes
- BS 3100 Grade A1 Steel Specifications & Properties
- WL 3.2364 T5: Superior Weldable Cast Alloy for High-Integrity Applications
- ASTM B211 Grade 7075 T73/T7351 Aluminum Alloy – High Strength, Corrosion Resistance & Aerospace Performance
- AA 7475 (T7351) – High‑Toughness Aluminum Alloy for Advanced Engineering
- High-Strength AA 7075 T7351 Alloy – Aerospace-Grade, Stress‑Corrosion Resistant
- EN 573-3 Grade 3.4365 T7351 – Premium 7075 Aluminum Alloy
- EN 573-3 Grade AW-7010 T7351 – High‑Strength Age‑Hardenable AlZn Alloy
- DIN 1725-1 Grade 3.4365 T7351: High-Strength, Corrosion-Resistant Aluminum 7075 for Aerospace