joke Fill R-80

Product information "joke Fill R-80" "Beryllium copper wire with special additives for the repair of molds and dies, where a very high conductivity of heat or electricity is required. High hardness and good wear resistance, polishable, nonmagnetic. When welding use fume extractor! Hardness approx 250 – 300 HB. By temperature treatments hardness up to 40 HRC are possible. Materials: copper alloys, bronze, steel