ERCuAl-A2

Class: ERCuAl-A2
AWS: A5.7

Conforms to Certification: AWS – 5.7 | ASME SFA  A5.7

Aluminum Bronze-A2 Mig Welding Process (GMAW)

AWS Chemical Composition Requirements
Cu + Ag = Remainder Zn = 0.02 max
Fe = 0.5 -1.5 Si = 0.10 max
Al = 8.5 – 11.0 Pb = 0.02 max
Other = 0.50 max

Available Sizes

Diameter X Spool Sizes Diameter 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#

Application
ERCuAl-A2 can be used where welds on brass are required to have high tensile strength and must be corrosion resistance. It is an excellent alloy for joining Manganese Bronze castings and other Aluminum Bronze materials, malleable iron, steel and dissimilar metals.

Deposited Chemical Composition % (Typical)
Dependent on weld process

(Nominal) All Weld Metal Properties Requirements
Tensile Strength 79,000 psi
Yield Strength 35,000 psi
Elongation 28%

Recommended Welding Parameters

Process Diameter of Wire Voltage (V) Amperage (A) Gas Feed
MIG .035 inches 20-26 100-200 100% Argon or 75% Argon, 25% Helium 45-55 CFH
GMAW (DCEP) .045 inches 22-28 100-200 100% Argon or 75% Argon, 25% Helium 45-55 CFH
1/16 inches 29-32 250-400 100% Argon or 75% Argon, 25% Helium 45-55 CFH
3/32 inches 32-34 350-500 100% Argon or 75% Argon, 25% Helium 45-55 CFH

Preheat / Interpass Recommendations
Preheating 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.