7075 Al-FORMODAL® BM: High-Strength Hardenable Aluminium Alloy
Hardenable alloy with very high strength and very high fatigue strength. Aluminium rolled plate
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 2.8 g/cm³ |
Surface roughness | 0.4 μm |
Dimension
| Property | Value |
|---|---|
Thickness | 8 - 100 mm |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 23.0 °C | 72 GPa |
Elongation | 23.0 °C | 5 - 6 % |
Elongation A50 | 23.0 °C | 7 % |
Hardness, HBW | 23.0 °C | 126 - 140 [-] |
Tensile strength | 23.0 °C | 430 - 475 MPa |
Yield strength | 23.0 °C | 340 - 390 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 2.34E-5 1/K | Mean values between 20°C and the mentioned temperature |
200.0 °C | 2.43E-5 1/K | Mean values between 20°C and the mentioned temperature | |
300.0 °C | 2.52E-5 1/K | Mean values between 20°C and the mentioned temperature | |
Specific heat capacity | 23.0 °C | 862 J/(kg·K) | |
Thermal conductivity | 23.0 °C | 130 - 160 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 23.0 °C | 1.90E+7 - 2.30E+7 S/m |
Chemical properties
| Property | Value | Comment | |
|---|---|---|---|
Aluminium | Balance | ||
Chromium | 0.18 - 0.28 % | ||
Copper | 1.2 - 2 % | ||
Iron | 0.5 % | ||
Magnesium | 2.1 - 2.9 % | ||
Manganese | 0.3 % | ||
Other | 0.15 % | Total | |
Silicon | 0.4 % | ||
Titanium | 0.2 % | ||
Zinc | 5.1 - 6.1 % | ||
Technological properties
| Property | ||
|---|---|---|
| Anodizing | moderate | |
| Application areas | Tool making, mould making and model making; Aerospace; Military technology | |
| Corrosion properties | moderate | |
| General machinability | good | |
| Soldering general | not recommended | |
| Welding | Resistance welding: good | |
Metal
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