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:

Main applications

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.

Chemical compositionAluminium, Al91.4 - 95.1 %Bismuth, Bi0.20 - 0.60 %Cooper, Cu4.50 - 6.0 %Iron, Fe 0.50 %Lead, Pb0.20 - 0.60 %Magnesium, Mg0.40 ¡Ò 1.80 %Silicon, Si 0.40 %Zink, Zn 0.30 %Other, each 0.05 %Other, total 0.15 %

Physical characteristicsDensity2.790 kg/dm3Modulus of elasticity70 000 Coefficient of thermal expansion23.5 £gm/m-¢XCThermal conductivity

T3 - 151 W/mk

T8 - 171 W/mk

Electrical resistivity

T3 - 0.038 £[mm2/m

T8 - 0.043 £[mm2/m

Mechanical propertiesTemperT3T8Ultimate Tensile Strenght, Rm, MPa320370Yield Tensile Strenght, Rp0.2, MPa270270Elongiation at Break, A%108Hardness, HBW90105

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