UNS C18400 boway

Alternative and trade names
boway 18400
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Description

High electrical conductivity and thermal conductivity combined with medium strength. Excellent stress relaxation and softening resistance.

Equivalent Materials

This material data has been provided by Ningbo Boway Alloy Material.

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

PropertyValue

Density

8.9 g/cm³

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Dimension

PropertyValue

Dimensions

Strip thickness 0.08 - 3.0 mm, other gauges on request. Strip width from 8.5 mm. Electroplated and Hot-dip tinned strip available.

Mechanical

PropertyValueTesting StandardComment

Bendability 180°, bw

1 [-]

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ASTM B820

R480 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

2.5 [-]

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ASTM B820

R540 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

Bendability 180°, gw

1 [-]

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ASTM B820

R480 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

2 [-]

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ASTM B820

R540 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

Bendability 90°, bw

0.5 [-]

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EN ISO 7438

R480 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

1 [-]

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EN ISO 7438

R540 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

2.5 [-]

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EN ISO 7438

R600 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

Bendability 90°, gw

0.5 [-]

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EN ISO 7438

R480 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

1 [-]

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EN ISO 7438

R540 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

1.5 [-]

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EN ISO 7438

R600 (≤ 0.5 mm) | bending thickness < 0.5 mm & bending width: 10 mm

Elastic modulus

135 GPa

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Elongation

2 %

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min. | R600, A50

4 %

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min. | R540, A50

8 %

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min. | R480, A50

Hardness, Vickers

150 - 190 [-]

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R480 | For reference only

160 - 200 [-]

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R540 | For reference only

170 - 200 [-]

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R600 | For reference only

Poisson's ratio

0.33 [-]

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Tensile strength

480 - 570 MPa

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R480

540 - 630 MPa

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R540

600 - 690 MPa

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R600

Yield strength

450 MPa

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min. | R480

500 MPa

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min. | R540

560 MPa

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min. | R600

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

1.86e-05 1/K

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average value between 20-300°C

Specific heat capacity

381 J/(kg·K)

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Thermal conductivity

20 °C

320 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20 °C

0.086 S/m

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Specific Electrical conductivity

20 °C

50 % IACS

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Chemical properties

PropertyValue

Chromium

0.8 %

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Copper

Balance

Technological properties

Property
Application areas

Application target:

Signal ConnectorSuitable
Power ConnectorVery suitable
Miniaturized ConnectorSuitable
Switch / RelaySuitable
SemiconductorNot recommended


Ideal for power connectors.

Chemical composition

The chemical composition is the nominal composition of the alloy

Coating

Electroplating: Average


Hot dip tinning: Average

Cold Forming

Good

Machining

Not suitable

Packaging size

Standard coils with outside diameters up to 1200 mm. Traverse-wound coils with drum weights up to 500 kg. Multiple-coil up to 3 tons.

Soldering general

Soft soldering: Average

Testings

Fatigue strength:

The fatigue strength is defined as the maximum bending stress amplitude which a material withstands for 10.000.000 load cycles under symmetrical alternate load without breaking. It depends on the temper selected and can be estimated typically by 1/3 of tensile strength. For solid solution fine grain materials fatigue strength might increase up to 0,5 * of tensile strength.


Bending test:

90° bend test According to EN ISO 7438, 180° bend test acc. to ASTM B820, shown values might show orange- peel, however no crack.

Welding

Laser welding: Average


Resistance welding: Good