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

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Eigenschaften

Allgemein

PropertyTemperatureValue

Dichte

20.0 °C

8.79 - 8.8 g/cm³

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Mechanisch

PropertyTemperatureValue

Elastizitätsmodul

20.0 °C

115 GPa

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Poissonzahl

20.0 °C

0.34 [-]

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Zugfestigkeit

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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Thermisch

PropertyTemperatureValue

Koeffizient der thermischen Ausdehnung

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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Spezifische Wärmekapazität

20.0 °C

377 J/(kg·K)

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Wärmeleitfähigkeit

20.0 °C

67 W/(m·K)

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200.0 °C

81 W/(m·K)

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Elektrisch

PropertyTemperatureValue

Elektrische Leitfähigkeit

20.0 °C

7.50E+6 S/m

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200.0 °C

6.50E+6 S/m

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Specific Electrical conductivity

13 % IACS

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spezifischer Widerstand

20.0 °C

1.33E-7 Ω·m

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200.0 °C

1.54E-7 Ω·m

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Chemical properties

PropertyValue

Blei

0.02 %

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Eisen

0.1 %

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Nickel

0.2 %

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Phosphor

0.01 - 0.4 %

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Zink

0.2 %

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Zinn

7.5 - 8.5 %

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