Alloy 390E EHT Strip

Alternative and trade names
Alloy 390E Strip
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Description

Materion Performance Alloys’ Alloy 390E is a copper beryllium alloy that provides a unique combination of high strength, high electrical conductivity, and excellent formability. Copper beryllium alloys are well known for their superior stress relaxation resistance and fatigue strength. This blend of properties provides engineers the flexibility to design small form factor signal and power interconnects that can be used in harsh environments.

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

8.83 g/cm³

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Dimension

PropertyValueComment

Thickness

0.05 - 0.38 mm

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thinner gauges maybe available upon request

Width

1.27 - 406.5 mm

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Mechanical

PropertyTemperatureValueComment

Bendability 90°, bw

23.0 °C

1 - 3.5 [-]

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depending on the thickness

Bendability 90°, gw

23.0 °C

1 - 3.5 [-]

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depending on the thickness

Elastic modulus

23.0 °C

138 GPa

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Elongation

23.0 °C

2 %

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for strip thicker than 0.10 mm

Fatigue strength

23.0 °C

552 MPa

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10⁷ cycles, R=0

Hardness, Vickers

23.0 °C

300 [-]

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Tensile strength

23.0 °C

986 MPa

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Yield strength Rp0.2

23.0 °C

951 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.76E-5 1/K

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Specific heat capacity

23.0 °C

419 J/(kg·K)

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Thermal conductivity

23.0 °C

208 W/(m·K)

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Electrical

PropertyValue

Specific Electrical conductivity

42 % IACS

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Technological properties

Property
Application areas

Excellent material for production sockets, appliance switches, relays, sensors and controls.