Alloy 25 Strip TH04 (C17200)

Alternative and trade names
Alloy 25 (C17200) Strip
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Description

Materion Brush Performance Alloys’ Alloy 25 strip provides the highest strength of any copper alloy, with electrical conductivity considerably greater than other high strength copper alloys. Since it is heat treated after forming, it provides excellent formability and ductility. This alloy features good stress relaxation resistance and high fatigue strength.

Related Standards

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

8.36 g/cm³

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Dimension

PropertyValue

Thickness

0.05 - 4.77 mm

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Width

1.27 - 406.5 mm

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Mechanical

PropertyTemperatureValue

Elastic modulus

23.0 °C

131 GPa

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Elongation

23.0 °C

1 - 6 %

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Hardness, Vickers

23.0 °C

373 - 446 [-]

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Tensile strength

23.0 °C

1310 - 1520 MPa

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Yield strength Rp0.2

23.0 °C

1130 - 1420 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.75E-5 1/K

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Melting point

870 °C

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Thermal conductivity

23.0 °C

105 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

23.0 °C

6.2E-6 - 7.8E-6 Ω·m

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Specific Electrical conductivity

22 - 28 % IACS

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Chemical properties

PropertyValueComment

Beryllium

1.8 - 2 %

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Cobalt

0.2 %

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min. Nickel + Cobalt

Copper

Balance

Iron

0.6 %

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max., Nickel + Cobalt + Iron

Nickel

0.2 %

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min. Nickel + Cobalt

Technological properties

Property
Application areas

Typical applications include pressure sensor bellows, burn-in and test socket contacts, computer processor socket contacts, and electromagnetic shielding gaskets.