Brazing of carbon steel and low alloy steel

The oxides on the surface of carbon steel are FeO, Fe2O3 and so on. In addition to iron oxide on the surface of low-alloy structural steel, oxides of alloying elements may also be formed. Except for chromium and aluminum oxides which have greater influence, other oxides are easier to remove. When soldering carbon steel and low-alloy steel, various solders can be used, of which tin-lead solder is the most widely used. When copper, copper-based solder and silver-based solder are used for brazing, higher joint strength can be obtained.