EN AW-AlCu6BiPb(DIN 3.1655,AA2011,FC1,A92011,AU5PbBi) alloy is the most often selected for high speed automatic lathes. It offer the following advantages:
easy machining with any equipment;
cutting stress lower than most of other alloys;
longer life of cutting tools;
cutting area always clean due to very thin chip;
high mechanical properties;
possibility to anodize finished part in several colours.
Main applications
Screws, bolts, nuts, threaded bars.
Chemical composition
| Aluminium, Al | 91.4 - 95.1 % |
| Bismuth, Bi | 0.20 - 0.60 % |
| Cooper, Cu | 4.50 - 6.0 % |
| Iron, Fe | ≤ 0.50 % |
| Lead, Pb | 0.20 - 0.60 % |
| Magnesium, Mg | 0.40 ÷ 1.80 % |
| Silicon, Si | ≤ 0.40 % |
| Zink, Zn | ≤ 0.30 % |
| Other, each | ≤ 0.05 % |
| Other, total | ≤ 0.15 % |
Physical characteristics
| Density | 2.790 kg/dm3 |
| Modulus of elasticity | 70 000 МРа |
| Coefficient of thermal expansion | 23.5 μm/m-°C |
| Thermal conductivity |
T3 - 151 W/mk
T8 - 171 W/mk
|
| Electrical resistivity |
T3 - 0.038 Ωmm2/m
T8 - 0.043 Ωmm2/m
|