G.AL® C250
highest precision
extremely low tension
Plate’s Characteristics
| Alloy: | EN AW/AA 5083 |
| Type of Alloy: | non-heat-treatable |
| Temper: | homogenized and stress relieved |
| Surface: | precision milled, roughness Ra 0,4 μm, PVC on both sides |
Mechanical Properties
| Yield strength Rp0,2 | [ksi] | 16 – 19 |
| Ultimate tensile strength Rm | [ksi] | 33 – 42 |
| Elongation A | [%] | 10 – 15 |
| Hardness HBW | [2.5/62.5] | 68 – 73 |
Physical Properties
| Density | [lbs/cu in.] | 0.096 |
| Module of elasticity | [ksi· 10³] | 10.2 |
| Electrical conductivity | [% IACS] | 29 - 32 |
| Coefficient of therm. Expans. | [10-6/ °F] | 13.1 |
| Thermal conductivity | [BTU/ft·hr·°F] | 64 – 75 |
| Specific heat capacity | [BTU/ lb°F] | 0.214 |
Advantages
- Very uniform flatness
- Very good homogeneity
- Very good dimensional stability
- Very good corrosion resistance
- Extremely low residual stress
- Precision milled surface
Applications
- Jig-making
- Fixture construction
- Mechanical engineering
- Model and moldmaking
- Packaging industry
- Automation technology
Processing charcteristics
- Dimensional stability 100%
- Machinability 80%
- Erodability 100%
- Weldability 80%
- Corrosion resistance (seawater / weather) 100%
- Anodizing 80%
- Polishability 60%
- Etching 10%
- Contact with food (according to EN 602) 100%
Tolerances
| Thickness in [in] | Flatness [in] | Thickness [in] | Width & Length [in] |
|---|---|---|---|
| < 0.500 | ≤ 0.015 | +/- 0.004 | -0 / + 0.790 |
| > 0.500 | ≤ 0.005 | +/- 0.004 | -0 / + 0.790 |
| Cuts | DIN ISO 2768-1m |
Standard Stock sizes
other dimensions upon request
| Plate Dimension [in] | Plate Thickness [in] |
| 48.5 × 144.5 | 0.250 – 5.000 |
| 62.5 × 144.5 | 0.250 – 4.000 |
| 85.0 × 157.5 | 0.375 – 4.000 |