G.AL® C330
high strength
excellent form stability
Plate’s Characteristics
| Alloy: | EN AW/AA 7021 |
| Type of Alloy: | heat-treatable |
| Temper: | hardened, T79 |
| Surface: | precision milled, roughness Ra 0,4 μm, PVC on both sides |
Mechanical Properties
| Yield strength Rp0,2 | [ksi] | 42 – 49 |
| Ultimate tensile strength Rm | [ksi] | 46 – 55 |
| Elongation A | [%] | 2.5 – 4.5 |
| Hardness HBW | [2.5/62.5] | 110 – 120 |
Physical Properties
| Density | [lbs/cu in.] | 0.101 |
| Module of elasticity | [ksi· 10³] | 10.2 |
| Electrical conductivity | [% IACS] | 38 - 43 |
| Coefficient of therm. Expans. | [10-6/ °F] | 13 |
| Thermal conductivity | [BTU/ft·hr·°F] | 72 – 90 |
| Specific heat capacity | [BTU/ lb°F] | 0.208 |
Advantages
- Very high strength
- Excellent form stability
- Very good machinability
- Extremely stress relieved
- Very uniform flatness
- Precision milled surface
Applications
- Toolmaking
- Installation technology
- Printing industry
- Automation technology
- Handling and robotic technology
- Mechanical and special machine engineering
Processing charcteristics
- Dimensional stability 80%
- Machinability 80%
- Erodability 100%
- Weldability 80%
- Corrosion resistance (seawater / weather) 60%
- Anodizing 60%
- Polishability 80%
- Etching 70%
- Contact with food (according to EN 602) 0%
Tolerances
| Thickness in [in] | Flatness [in] | Thickness [in] | Width & Length [in] |
| < 0.625 | ≤ 0.015 | +/- 0.004 | -0 / + 0.790 |
| > 0.625 | ≤ 0.010 | +/- 0.004 | -0 / + 0.790 |
| Cuts | DIN ISO 2768-1m |
Standard Stock sizes
other dimensions upon request
| Plate Dimension [in] | Plate Thickness [in] |
| 60.5 × 120.0 | 0.375 – 4.000 |