PerforMetᵀᴹ

Alternative and trade names
PerforMetᵀᴹ
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Description

PerforMet is a nickel-silicide strengthened copper alloy with high strength and high thermal conductivity. It resists mechanical wear, corrosion and galling, and has a low coefficient of friction when mated to other metals. PerforMet retains its strength at elevated temperatures. It is non-magnetic and easily machined.

This material data has been provided by Materion Brush GmbH.

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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Dimension

PropertyValueComment

Outside diameter

114.3 mm

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max., other sizes are available upon request

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

130 GPa

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Elongation

23.0 °C

7 %

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Hardness, HBW

23.0 °C

265 [-]

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Hardness, Rockwell C

23.0 °C

27 [-]

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HRC values converted per ASTM-E-140, Table 1.

Tensile strength

23.0 °C

860 MPa

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Yield strength Rp0.2

23.0 °C

790 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

25.0 °C

155 W/(m·K)

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250.0 °C

215 W/(m·K)

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Chemical properties

PropertyValue

Chromium

0.6 - 1.2 %

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Copper

Balance

Nickel

6.4 - 6.7 %

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Silicon

1.5 - 2.5 %

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Technological properties

Property
Application areas

Applications include valve seats, valve guides, piston rings and plain bearings, where PerforMet provides long life while efficiently removing heat from critical engine components.