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Welding Consumables >> Copper Based Welding Consumables >> ERCuAI-A2

ERCuAI-A2 is a copper based filler metal containing about 1% iron used for gas-tungsten arc welding and gas-metal arc welding of copper, copper-nickel, brass, bronze, steel, galvanized steels and also cast iron. Most common applications would include marine maintenance and repair, ship propellers, pump housing, rigging jacks, piston heads, bearings and excellent for build-up or overlaying wear/corrosion resistance applications. Combinations of Copper or Aluminum Bronze base metals to steel are very common with this filler. Exhibits high mechanical properties and hardness,It can equivalent to: Oxford Alloy 625 FM625 Techalloy 625

ERCuAI-A2 is used to weld and join many ferrous and nonferrous metals and combinations of dissimilar metals. Contains an additive to inhibit inter-granular stress corrosion cracking. This is particularly important when welding on C61300 and C61400 base metal. Some applications include building up bearing surfaces, joining and fabricating copper alloys, overlaying for resistance to corrosion and erosion.
Product Details
Chemical composition

Grade Chemical composition(%)
ERCuAI-A2 Cu+Ag Al Fe Si Zn Pb¡¡ others


5.0~1.5 ¡Ü0.1 ¡Ü0.02 ¡¡¡Ü0.02 £¼0.5

Mechanical properties

Tensile Strength Yield Strength Elongation
545 Mpa 248 Mpa 28%

Welding paramaters

Process Diameter Voltage Amperage Gas
TIG .045¡±     (1.2mm) 13-16 80-110 100% Argon
1/16¡±     (1.6mm) 14-18 90-130 100% Argon
3/32¡±     (2.4mm) 15-20 120-175 100% Argon
1/8¡±      (3.2mm) 15-20 150-220 100% Argon
MIG .045¡±     (1.2mm) 28-32 180-220 75% Argon + 25% Helium
1/16¡±     (1.6mm) 29-33 200-250 75% Argon + 25% Helium
3/32¡±     (2.4mm) 28-30 275-350 Suitable Flux may be used
SAW 1/8¡±      (3.2mm) 29-32 350-450 Suitable Flux may be used
5/32¡±     (4.0mm) 30-33 400-550 Suitable Flux may be used
AWS/ASME Spec 5.7, AWS Class ERCuAI-A2, UNS C61800
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