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Silicon Bronze is not as strong as er70s2 tig rod for most applications. But it is a good choice for light duty fixtures because it distorts much less than other welding rods. Because it is technically a brazing rod, and melts at a much lower temperature than carbon steel, much less heat is applied and the shrinkage stresses are less. other uses for silicon bronze are: building up wear surfaces, buildup of worn areas on thin wall tubing, welding copper alloys to each other or to steels, and of c