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.