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CW718R | CuZn39Mn1AlPbSi

Numeric designationCW718R
Chemical designationCuZn39Mn1AlPbSi
EtchingMessingätzmittel

The micrographs show a connecting piece with alpha-beta phase. The light grey precipitates are Mn-Si phases.

The hardness is 130 HBW 2.5/62.5.