Alternative and trade names
AWS A5.7 Class E CuAl-A2, ASME SFA 5.7 Class E CuAl-A2
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Aluminum bronze is the most versatile welding electrode in this family of alloys. It is intended for deposition with electric arc welding processes.

AMPCO-TRODE® 10 will weld and join many ferrous and nonferrous metals and combinations of dissimilar metals. These metals include the more weldable grades of cast iron, high and low carbon steels, copper, bronzes and copper-nickel alloys.

Applications for AMPCO-TRODE® 10 include: building up bearing surfaces, joining and fabricating copper alloys, overlaying for resistance to corrosion and erosion and general maintenance and repair welding.

Related Standards

This material data has been provided by AMPCO METAL.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts




Recycled Content

80 %

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23.0 °C

28 %

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in 2″ (51 mm)

Hardness, Brinell

23.0 °C

140 [-]

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BHN (3000kg) 1/4″ (6.4mm) deposit

Reduction of area

23.0 °C

28 %

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Tensile strength

23.0 °C

545 MPa

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Yield strength

23.0 °C

241 MPa

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Chemical properties



8.5 - 11 %

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Balance, including silver


0.5 - 1.5 %

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0.5 %

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0.1 %

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Technological properties

Application areas

Welding: Cast iron, Cast iron, Malleable iron, Cast iron to steel, Cast iron to bronze, Steel to bronze, Aluminum bronze, Silicon bronze, Manganese bronze, Cupro-nickel, Copper to steel, Bearings, Bushings, Pump housings, Condenser boxes, Hydraulic pistons, Brake drums, Tractor gear housings, Idler pulleys, Pickling hooks, Paper mill rolls, Motor bases, Tin plate mill rolls, Impellers, Valve seats, Gears, Mixer arms, Press rams, Ship propellers, Lance heads