EN 12166 Grade CuSn8 O50

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Description

CuSn8, mat. No. CW453K, is comparable to the DIN-make CuSn8, mat. No. 2.1030, acc. to DIN 17662 : 1983-12. Properties of the CuSn-alloy are predominantly determined by the tin-content. Tensile strength, yield point and hardness increase according to the rising cold forming grade, elongation after fracture decreases. Electrical and thermal conductivity are lower than for pure copper. Very high resistance to corrosion, particularly to atmospheric influences, seawater, sulfite liquor, carbonated and salted mine water. The alloys are stress corrosion-proof. Processing properties: warm forming: medium cold forming: very good machinability: medium hard soldering: good soft soldering: good gas shielded welding: good burnishing: good Application: For friction elements, especially for thin-walled friction-bearing bushings and sliding strips as well as for beater bars. Increased abrasion and corrosion resistance compared to CuSn6. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)

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Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

20.0 °C

8.79 - 8.8 g/cm³

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Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

115 GPa

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Poisson's ratio

20.0 °C

0.34 [-]

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Tensile strength

25.0 °C

680 MPa

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75.0 °C

650 MPa

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125.0 °C

750 MPa

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175.0 °C

700 MPa

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225.0 °C

490 MPa

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275.0 °C

300 MPa

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325.0 °C

230 MPa

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375.0 °C

200 MPa

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425.0 °C

170 MPa

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475.0 °C

110 MPa

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525.0 °C

110 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

100.0 °C

1.8E-5 1/K

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300.0 °C

1.82E-5 1/K

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400.0 °C

1.87E-5 1/K

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650.0 °C

2.22E-5 1/K

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800.0 °C

2.18E-5 1/K

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Specific heat capacity

20.0 °C

377 J/(kg·K)

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Thermal conductivity

20.0 °C

67 W/(m·K)

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200.0 °C

81 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

7.50E+6 S/m

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200.0 °C

6.50E+6 S/m

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Electrical resistivity

20.0 °C

1.33E-7 Ω·m

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200.0 °C

1.54E-7 Ω·m

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Specific Electrical conductivity

13 % IACS

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Chemical properties

PropertyValue

Iron

0.1 %

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Lead

0.02 %

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Nickel

0.2 %

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Phosphorus

0.01 - 0.4 %

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Tin

7.5 - 8.5 %

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Zinc

0.2 %

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