UNS C51900 boway

Alternative and trade names
boway 51900
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Description

Excellent ductility combined with very good corrosion resistance in fresh water and see water. Very good behavior against electromagnetic interference as well as excellent stress relaxation resistance and solderability. Low sensitivity of stress corrosion cracking.

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

8.7 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

1.5 [-]

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ASTM B820

R390(1/4H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

2 [-]

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ASTM B820

R490(1/2H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

3 [-]

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ASTM B820

R590(H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

8 [-]

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ASTM B820

R635(EH) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

Bendability 180°, gw

0.5 [-]

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ASTM B820

R390(1/4H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

1 [-]

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ASTM B820

R490(1/2H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

2 [-]

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ASTM B820

R590(H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

3 [-]

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ASTM B820

R635(EH) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

Bendability 90°, bw

0.5 [-]

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EN ISO 7438

R390(1/4H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

1 [-]

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EN ISO 7438

R490(1/2H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

1.5 [-]

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EN ISO 7438

R590(H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

4 [-]

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EN ISO 7438

R635(EH) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

Bendability 90°, gw

0 [-]

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EN ISO 7438

R390(1/4H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

0.5 [-]

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EN ISO 7438

R490(1/2H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

1 [-]

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EN ISO 7438

R590(H) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

2 [-]

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EN ISO 7438

R635(EH) | bending thickness: ≤ 0.5 mm & bending width: 10 mm

Elastic modulus

135 GPa

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Elongation

20 %

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min. | R540(1/2H), A50

25 %

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min. | R480(1/4H), A50

Hardness, Vickers

100 - 160 [-]

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R480(1/4H) | For reference only

150 - 205 [-]

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R540(1/2H) | For reference only

180 - 230 [-]

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R630(H) | For reference only

200 - 240 [-]

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R705(EH) | For reference only

210 [-]

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min. | R765(SH) | For reference only

Poisson's ratio

0.33 [-]

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Tensile strength

480 - 660 MPa

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R480(1/4H)

540 - 655 MPa

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R540(1/2H)

630 - 735 MPa

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R630(H)

705 - 805 MPa

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R705(EH)

765 - 865 MPa

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R765(SH)

Yield strength

230 MPa

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min. | R480(1/4H)

390 MPa

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min. | R540(1/2H)

500 MPa

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min. | R630(H)

550 MPa

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min. | R705(EH)

650 MPa

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min. | R765(SH)

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

1.67e-05 1/K

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average value between 20-300°C

Specific heat capacity

340 J/(kg·K)

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Thermal conductivity

20 °C

32 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20 °C

0.009 S/m

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Specific Electrical conductivity

20 °C

15 % IACS

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Chemical properties

PropertyValue

Copper

Balance

Tin

6 %

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Technological properties

Property
Application areas

Application target:

Signal ConnectorSuitable
Power ConnectorNot suitable
Miniaturized ConnectorSuitable
Switch / RelaySuitable
ShieldingVery suitable

Chemical composition

The chemical composition is the nominal composition of the alloy

Coating

Electroplating: Very good


Hot dip tinning: Very good

Cold Forming

Very good

Machining

Less Suitable

Packaging size

Standard coils with outside diameters up to 1300 mm. Traverse-wound coils with drum weights up to 500 kg. Multiple-coil up to 3 tons.

Soldering general

Soft soldering: Very good

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: Good


Resistance welding: Very good