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:
Screws, bolts, nuts, threaded bars.
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.
| 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 ¡Ò 1.80 % |
| Silicon, Si | 0.40 % |
| Zink, Zn | 0.30 % |
| Other, each | 0.05 % |
| Other, total | 0.15 % |
T3 - 151 W/mk T8 - 171 W/mk T3 - 0.038 £[mm2/m T8 - 0.043 £[mm2/mPhysical characteristics
Density 2.790 kg/dm3 Modulus of elasticity 70 000 Coefficient of thermal expansion 23.5 £gm/m-¢XC Thermal conductivity Electrical resistivity
| Temper | T3 | T8 |
| Ultimate Tensile Strenght, Rm, MPa | 320 | 370 |
| Yield Tensile Strenght, Rp0.2, MPa | 270 | 270 |
| Elongiation at Break, A% | 10 | 8 |
| Hardness, HBW | 90 | 105 |
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