... dip brazing of copper and copper alloys ,nickel,cast iron and hard alloys .While brazing by oxyacetylence, to ... 900°C.Brazing welding of copper. Steel, and cast iron. RBCuZn-A59Bal.0.6————875885Melting point is about890 ... , also braze welding of copper, steel and cast iron. RBCuZn-D48Bal.——100.2—890935Melting point is about ... of steel copper-zind brazing alloys ring Hs221 for brazing steel and cast iron