AMPCOLOY® 940 Extrusions

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Description

AMPCOLOY® 940 is a patented alloy which meets the demands of users of the RWMA class 3 alloys without beryllium. In the industrialized countries, stricter health and safety instructions on the use of noxious elements have forced AMPCO METAL to develop this new alloy. It replaces the AMPCOLOY® 95 in practically all applications.

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

8.71 g/cm³

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Recycled Content

80 %

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Mechanical

PropertyTemperatureValueComment

Compressive yield strength, 0.1%

23.0 °C

552 MPa

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Elastic modulus

23.0 °C

131 GPa

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Elongation A5

23.0 °C

13 %

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Hardness, HBW

23.0 °C

210 [-]

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HBW 10/3000

Hardness, Rockwell B

23.0 °C

95 [-]

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Reduction of area

23.0 °C

20 %

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Tensile strength

23.0 °C

662 - 689 MPa

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Yield strength Rp0.5

23.0 °C

510 - 517 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.75E-5 1/K

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Specific heat capacity

23.0 °C

380 J/(kg·K)

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Thermal conductivity

23.0 °C

208 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

23.0 °C

2.80E+7 S/m

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Specific Electrical conductivity

48 % IACS

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Chemical properties

PropertyValue

Chromium

0.4 %

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Copper

Balance

Nickel

2.5 %

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Silicon

0.7 %

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Technological properties

Property
Application areas

AMPCOLOY® 940 is used wherever a good electrical or thermal conductivity is required together with high mechanical properties: 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 die casting machines, Parts of moulds for injection moulding of plastics, injection-nozzles and cooling pins, Brake drums for paper winding rolls, Parts for energy engineering