• 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

Mechanical properties

• 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