Abstract: A brazing alloy including copper (Cu), phosphorus (P), and strontium (Sr) and any one element of indium (In), boron (B), silver (Ag), tin (Sn), cesium (Cs), germanium (Ge), and nickel (Ni). The brazing alloy includes 5.0 to 7.5 wt % of phosphorus (P) and 0.1 to 5.0 wt % of strontium (Sr) and the remainder is composed of copper (Cu). The brazing alloy includes copper (Cu), phosphorus (P), and strontium (Sr) unlike the existing alloy element. The brazing alloy further includes, as alloy components, one or more elements of indium (In), boron (B), silver (Ag), and tin (Sn). The brazing alloy includes no silver (Ag) or the silver (Ag) content is reduced compared to an existing brazing alloy containing silver (Ag).

Abstract: The present invention relates to a brazing alloy, and particularly, to a brazing alloy comprising copper (Cu), phosphorus (P), and strontium (Sr) and further including any one element of indium (In), boron (B), silver (Ag), tin (Sn), cesium (Cs), germanium (Ge), and nickel (Ni). The present invention includes 5.0 to 7.5 wt % of phosphorus (P) and 0.1 to 5.0 wt % of strontium (Sr), in which the remainder is composed of copper (Cu). The brazing alloy according to an exemplary embodiment of the present invention comprises copper (Cu), phosphorus (P), and strontium (Sr) unlike the existing alloy element and further includes, as alloy components, one or more elements selected from a group consisting of indium (In), boron (B), silver (Ag), and tin (Sn), such that the brazing alloy includes no silver (Ag) or the silver (Ag) content is remarkably reduced compared to an existing brazing alloy containing silver (Ag).