AMPCO-TRODE® 7

Alternative and trade names
AWS A5.7 Class ER CuAl-A1, ASME SFA 5.7 Class ER CuAl-A1
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Description

AMPCO-TRODE® 7 is an iron-free, aluminum bronze alloy available in spooled wire and 36″ (1000 mm) bare-filler metal rod for use with the gas metal-arc and gas tungsten arc welding processes respectively.


AMPCO-TRODE® 7 deposits are used primarily to overlay bearing and wear-resistant surfaces requiring hardness of approximately 125 BHN and to resist corrosion especially from saltwater, metal salts and many commonly used acids in varying concentrations and temperatures.


This alloy is not recommended for joining since the deposit does have a tendency to be hot short.

Related Standards

This material data has been provided by AMPCO METAL.

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

Properties

General

PropertyValue

Recycled Content

80 %

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Mechanical

PropertyTemperatureValueComment

Elongation

23.0 °C

47 %

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in 2″ (51 mm)

Hardness, Brinell

23.0 °C

125 [-]

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BHN (3000kg) 1/4″ (6.4mm) deposit

Reduction of area

23.0 °C

53 %

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Tensile strength

23.0 °C

469 MPa

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Yield strength

23.0 °C

193 MPa

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Chemical properties

PropertyValueComment

Aluminium

6 - 8.5 %

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Copper

Balance, including silver

Manganese

0.5 %

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max.

Other

0.5 %

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max.

Silicon

0.1 %

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max.

Technological properties

Property
Application areas

Welding: Tube sheets,pickling hooks,impellers,valve seats,chemical plants,pulp mills