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

PropertyValueTemperature

Density

9 g/cm³

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23.0 °C

Dimension

PropertyValueComment

Thickness

0.03 - 0.12 mm

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gauge

Mechanical

PropertyValueTemperatureComment

Elastic modulus

119 - 145 GPa

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23.0 °C

Elongation

1.4 %

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23.0 °C

for strip thicker than 0.10 mm

Hardness, Vickers

375 [-]

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23.0 °C

Poisson's ratio

0.3 [-]

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23.0 °C

Tensile strength

1416 MPa

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23.0 °C

Yield strength Rp0.2

1375 MPa

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23.0 °C

Thermal

PropertyValueTemperature

Coefficient of thermal expansion

1.64E-5 1/K

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23.0 °C

Electrical

PropertyValueTemperature

Electrical conductivity

4.00E+6 S/m

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23.0 °C

Specific Electrical conductivity

7 % IACS

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Magnetic

PropertyValueTemperature

Relative magnetic permeability

1.01 [-]

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23.0 °C

Chemical properties

Property

Copper

Balance

Tin

7.5 - 8.5 %

Technological properties

Property
Application areas

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