Washington Alloy, TCU SB 16, Filler Metal, .045 in, Silicon Bronze, RcuSi-A, AWS A5.27, MIG; TIG; Oxyacetylene

Washington Alloy Silicon Bronze is a copper-based filler metal containing 3% silicon and small amounts of manganese, tin, and zinc. Primarily used for MIG, TIG, and oxyacetylene welding of copper, copper-silicon, and copper-zinc base metals to themselves and to steel. The oxyacetylene gas flame should be slightly oxidizing. Keep the weld puddle small in order to promote fast solidification and minimize cracking. A high boric acid flux should be used both before and during welding. Preheating is NOT recommended.

• Size: .045 in.
• Weight: 10 lb
• Material: Silicon Bronze
• Alloy: RcuSi-A
• Standards: AWS A5.27, ANSI/AWS A5.7 ERCuSi-A, ASME SFA 5.7 ERCuSi-A
• Additional Elements: Manganese, Tin, Zinc (small amounts)
• Welding Types: MIG, TIG, Oxyacetylene
• Preheat Requirement: Not Recommended

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