UNIDAL® Precision Al Zn4Mg2 Rolled Plate – High Flatness & Low Stress for Anodizing & Welding
Precision rolled plate UNIDAL® made from alloy EN AW 7019 (AlZn4Mg2), finely milled on both sides and covered with protective film, is characterized by a narrow tolerance of flatness and thickness and has only relatively low residual stresses. The good anodizing and welding capability opens up a wide range of applications for this product.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 2.75 g/cm³ |
Surface roughness | 0.4 μm |
Dimension
| Property | Value |
|---|---|
Dimensions | Standard stock sizes: 1520mm x 3020mm and 8-80mm in thickness |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 23.0 °C | 71 GPa | |
Elongation A50 | 23.0 °C | 8 - 13 % | |
Hardness, HBW | 23.0 °C | 125 - 130 [-] | Test method: 2.5/62.5 |
Tensile strength | 23.0 °C | 390 - 420 MPa | |
Yield strength Rp0.2 | 23.0 °C | 330 - 370 MPa |
Thermal
| Property | Temperature | Value |
|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 2.36E-5 1/K |
Specific heat capacity | 23.0 °C | 875 J/(kg·K) |
Thermal conductivity | 23.0 °C | 135 - 150 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 23.0 °C | 1.90E+7 - 2.30E+7 S/m |
Technological properties
| Property | ||
|---|---|---|
| Other | Non heat treatable | |
| Processing history | Temper: T651 | |
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