Aluminum Bronze A-2 (ERCuAl-A2) filler metal is an intermediate-strength aluminum bronze alloy used for welding aluminum bronze plate fabrications and for joining dissimilar metals such as cast iron, carbon steels, copper, bronze and copper-nickel materials. It is excellent for building up or overlaying metal for wear and corrosion resistant surfaces. Weld deposits exhibit high mechanical properties, tensile strength, yield strength and hardness.
Applications • Marine maintenance and repair • Wear surface reconstruction • Casting repair • Joining aluminum bronze of similar composition
AWS Specification AWS A5.7/A5.7M:2007 AWS Classification ERCuAl-A2
Welding Current
AC - DCEP
Typical Wire Chemistry Al 8.5 - 11.0 Fe 0.5 - 1.5 Pb 0.02 Si 0.10 Zn 0.02 Cu (including Ag) REM OTHER 0.50
Typical Mechanical Properties (As Welded) Yield Strength, ksi 43 Tensile Strength,min ksi 60 Elongation%, min 23 Brinell Hardness 130 - 150
Available Diameters MIG with Operating Range in Amps .035" 130 - 200 .045" 185 - 245 1/16" 250 - 400
Available Diameters TIG/Oxy Rod with Operating Range in Amps 1/16" 80 - 120 3/32" 145 - 205 1/8" 300 - 640