AMPCOLOY® 944 Extruded

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Description

AMPCOLOY® 944 has been developed by AMPCO METAL to obtain an alloy with ultimate thermal conductivity, good tensile strength and very good hardness, in order to provide an alternative to beryllium copper, where stricter health and safety instructions on the use of noxious elements are required.

Equivalent Materials

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.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

8.69 g/cm³

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Recycled Content

80 %

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Mechanical

PropertyTemperatureValueComment

Charpy impact energy

23.0 °C

7 J

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Compressive yield strength, 0.1%

23.0 °C

710 MPa

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Elastic modulus

23.0 °C

151 GPa

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Elongation A5

23.0 °C

5 %

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Hardness, HBW

23.0 °C

294 [-]

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HBW 10/3000

Hardness, Rockwell C

23.0 °C

31 [-]

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Tensile strength

23.0 °C

938 MPa

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Yield strength Rp0.5

23.0 °C

730 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.75E-5 1/K

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Thermal conductivity

23.0 °C

156 W/(m·K)

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Electrical

PropertyValue

Specific Electrical conductivity

30 % IACS

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Chemical properties

PropertyValue

Chromium

0.9 %

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Copper

Balance

Nickel

7 %

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Other

0.5 %

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Silicon

2 %

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Technological properties

Property
Application areas

AMPCOLOY® 944 is used wherever a good electrical or thermal conductivity is required together with high mechanical properties and wherever Beryllium copper is used: Electrode holders and seam welding shafts, Spot welding electrodes, seam welding discs, projection and butt welding dies, principally for stainless steel and Monel, Plunger tips for cold chamber aluminium high pressure die casting, Parts of moulds for injection moulding of plastics, injection-nozzles and cooling pins, Chill moulds for casting brass and certain bronzes.