Washington Alloy, TM SB/04, Filler Metal, 1/16 in, Silicon Bronze, 36 in, 50,000 psi Tensile Strength

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: 1/16 in.
• Material: Silicon Bronze (Copper, Silicon, Manganese, Tin, Zinc)
• Tensile Strength: 50,000 psi
• Elongation: 65%
• Brinell Hardness: 80-100
• Density: 0.308 lbs/in3
• Thermal Conductivity: 21 Btu
• Electrical Conductivity: 7.0% IACS (annealed)
• Solidus Temperature: 1780 F
• Liquidus Temperature: 1880 F
• Length: 36 in
• Compliance: ANSI/AWS A5.7, ASME SFA 5.7 (ERCuSi-A), AWS A5.27 RcuSi-A

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