BrushForm® 158 Strip TM19 (C72900)

Alternative and trade names
BrushForm® 158 Strip Mill Hardened Tempers
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Description

Materion Performance Alloys’ BrushForm® 158 strip is a high-performance, heat treated spinodal copper nickel tin alloy designed to provide optimal photochemical machinability, high yield strength, and increased fatigue life. The TM18 and TM19 tempers provide excellent flatness and stiffness coupled with high resistance to vibration, fatigue and impact loading. This makes them ideal for voice coil motor springs in optical image stabilization systems.

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

9 g/cm³

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Dimension

PropertyValueComment

Thickness

0.03 - 0.12 mm

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gauge

Mechanical

PropertyTemperatureValueComment

Elastic modulus

23.0 °C

119 - 145 GPa

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Elongation

23.0 °C

1.4 %

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for strip thicker than 0.10 mm

Hardness, Vickers

23.0 °C

375 [-]

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Poisson's ratio

23.0 °C

0.3 [-]

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Tensile strength

23.0 °C

1416 MPa

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Yield strength Rp0.2

23.0 °C

1375 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.64E-5 1/K

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Electrical

PropertyTemperatureValue

Electrical conductivity

23.0 °C

4.00E+6 S/m

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Specific Electrical conductivity

7 % IACS

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Magnetic

PropertyTemperatureValue

Relative magnetic permeability

23.0 °C

1.01 [-]

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Chemical properties

PropertyValue

Copper

Balance

Tin

7.5 - 8.5 %

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Technological properties

Property
Application areas

Voice coil motor springs (VCM), Optical image stabilization systems (OIS) & Electromagnetic shielding gaskets.