Silicon Bronze Filler Wire ERCuSi-A

Class: ERCuSi-AAWS: A5.7Conforms to Certification: AWS – 5.7 ASME SFA A5.7Silicon Bronze: Mig Welding Process (GMAW)AWS Chemical Composition RequirementsCu = RemainderZn = 1.0 maxSn = 1.0 maxMn = 1.5 maxFe = 0.50 maxSi = 2.8 – 4.0Al = 0.01 maxPb = 0.02 maxOther = 0.50 max Available Sizes Diameter X Spool SizesDiameter X Coil Sizes.035 x 30#1/16 x 60#.045 x 30#3/32 x 60#1/16 x 30#1/8 x 60#ApplicationUse for welding of Silicon Bronze Copper, or Aluminum Bronze of low aluminum content. It can also be used for brazing malleable iron and light gauge steel.Deposited Chemical Composition % (Typical)Dependent on weld process(Nominal) All Weld Metal Properties RequirementsTensile Strength 50,000 psiRecommended Welding Parameters ProcessDiameter of WireVoltage (V)Amperage (A)GasFeedMIG.035 inches20-26100-200100% Argon or 75% Argon, 25% Helium45-55 CFHGMAW (DCEP).045 inches22-28100-200100% Argon or 75% Argon, 25% Helium45-55 CFH1/16 inches29-32250-400100% Argon or 75% Argon, 25% Helium45-55 CFH3/32 inches32-34350-500100% Argon or 75% Argon, 25% Helium45-55 CFHPreheat / Interpass RecommendationsPreheating copper – base alloys is frequently unnecessary provided section thicknesses are not unusually heavy.Preheat and Interpass temperatures will vary depending on section thickness, selected weld process and other variables.