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EN AW-2011 | AlCu6BiPb

Numeric designationEN AW-2011
Chemical designationAlCu6BiPb
Etching5 % NaOH, Barker

This is a free cutting alloy for high cutting speeds. NaOH etching brought out the precipitates a little better, but the grains only became visible with an electrolytic Barker etching.

Etching parameters Barker:

  • 30 V d-c
  • 150 sec
  • V2A cathode