HABA G-Alu340
EN AW-7021
AlZn5.5Mg1.5
Milled aluminium casting plates
HABA G-Alu340 is an aluminium casting plate with significantly higher dimensional stability than naturally hardened casting plates. We achieve the persistent equal strength with a multi-stage process of heat-treating and natural aging. The material stands out for its excellent machinability and great stability.
APPLICATIONS
- Base plates
- Rotary tables
- Table tops
- Foam, deep-draw and sample moulds
FINISHES
| Thickness | precisely milled Ra0.8 (N6) |
| Tolerance | +/-0.1 mm |
| protective film | two-sided |
| cardboard | one-sided |
| Parallelism | ≤0.05 mm |
| Evenness | ≤0.2 mm |
| Length/width | Ra3.2-6.3 cut with a precision circular saw |
| HABA standard tolerance | nominal size +0.8/+0.3 mm |
| Customer-specific tolerance | within a tolerance field of 0.4 mm |
We also produce other thicknesses and tolerances on request.
TECHNICAL SPECIFICATIONS
| Tensile strength Rm | ≥340 (N/mm2) |
| Yield strength Rp0.2 | ≥300 (N/mm2) |
| Breaking strain (Lo = 5 do) A5 | ≥3.0 % |
| Brinell hardness (HBS) | ≥110 |
| Density | 2.77 kg/dm3 |
| E-module | ~70.000 N/mm2 |
| Thermal conductivity coefficient | 110-120 (W/mK) |
| Thermal expansion coefficient | 24 x 10-6/K |
| Electrical conductivity | 20-27 m/Ω mm2 |
