Washington Alloy® Silicon Bronze .030 Diameter ERCuSi-A MIG Welding Wire 10 lb. Spool TCU SB 0510 lb. Spool -
Washington Alloy® .030 diameter Silicon Bronze MIG welding wire is a copper-based alloy containing about 3% silicon and may have small percentages of manganese, tin, and zinc. It is typically used for the MIG welding of copper, brass, bronze, steel, galvanized steels and also cast iron.Preheat:
When working with silicon bronze base metal, keep the interpass temperature below
150° F to minimize hot cracking. Base metals of cast iron may need a preheat of 600° F while copper
may need a 400-800° F. The use of a small narrow weld puddle will reduce the contraction stresses and
give you a faster cooling during the hot-short temperature range.Shielding Gas:
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