Check the listing for details. ERCuSi-A 1/16" TIG Silicon Bronze 1 lb Tube Welding Wire Rods Blue Demon. Condition: New. Listed at 21.89 USD. Silicon Bronze (ERCuSi-A) is primarily used for MIG, TIG, and gas welding of copper, copper- silicon and copper-zinc base metals to themselves and to steel. It is an excellent choice for joining plain or galvanized sheet steel metal as well as other coated steels. Applications • Surfacing areas subject to erosion • Joining copper, copper-silicon, and copperzincs to themselves or steel. AWS Specification AWS A5.7/A5.7M: 2007 AWS Classification ERCuSi-A Welding Current AC - DCEP Typical Wire Chemistry Zn 1.0 Sn 1.0 Mn 1.5 Fe 0.50 Si 2.8 - 4.0 Al 0.01 Pb 0.02 Cu (including Ag) REM OTHER 0.50 Typical Mechanical Properties (As Welded) Melting Point 1866ºF Tensile Strength, ksi 50 Elongation%, min 65 Available Diameters MIG with Operating Range in Amps .023" 100 - 140 .030" 130 - 150 .035" 145 - 185 .045" 195 - 215 1/16" 260 - 280 Available Diameters TIG/Oxy Rod with Operating Range in Amps 1/16" 70 - 150 3/32" 150 - 200 1/8" 230 - 400