AMPCOLOY® 940 Sand castings

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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

PropertyValueTemperature

Density

8.71 g/cm³

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23.0 °C

Mechanical

PropertyValueTemperatureComment

Elastic modulus

131 GPa

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23.0 °C

Elongation A5

8 %

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23.0 °C

Hardness, HBW

210 [-]

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23.0 °C

HBW 10/3000

Hardness, Rockwell B

95 [-]

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23.0 °C

Reduction of area

18 %

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23.0 °C

Tensile strength

544 MPa

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23.0 °C

Yield strength Rp0.5

475 MPa

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23.0 °C

Thermal

PropertyValueTemperature

Coefficient of thermal expansion

1.75E-5 1/K

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23.0 °C

Specific heat capacity

380 J/(kg·K)

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23.0 °C

Thermal conductivity

208 W/(m·K)

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23.0 °C

Electrical

PropertyValueTemperature

Electrical conductivity

2.80E+7 S/m

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23.0 °C

Specific Electrical conductivity

48 % IACS

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Chemical properties

Property

Chromium

0.4 %

Copper

Balance

Nickel

2.5 %

Silicon

0.7 %

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, parts for energy engineering