EN 1652 Grade CuSn5 R630

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Material CuSn5, mat. No. CW451K is used in the form of tubes for manometer springs or hose tubes as well as for contact springs and connectors. Basically the same application area as CuSn6 (CW452K). CuSn5 shows slightly higher electrical conductivity at slightly lower strength due to the lower tin-content. 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)

Related Standards

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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20.0 °C

8.85 - 8.9 g/cm³

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Elastic modulus

20.0 °C

120 GPa

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Elongation A50

20.0 °C

2 - 3 %

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Poisson's ratio

20.0 °C

0.34 [-]

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Tensile strength

20.0 °C

630 - 720 MPa

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Yield strength Rp0.2

20.0 °C

600 MPa

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Coefficient of thermal expansion

23.0 °C

1.5E-5 - 1.9E-5 1/K

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Typical for Leaded Phosphor Bronze

Specific heat capacity

20.0 °C

380 J/(kg·K)

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Thermal conductivity

20.0 °C

96 W/(m·K)

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Electrical conductivity

20.0 °C

1.00E+7 S/m

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Specific Electrical conductivity

17 % IACS

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Chemical properties



0.1 %

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0.02 %

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0.2 %

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0.01 - 0.4 %

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4.5 - 5.5 %

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0.2 %

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