EN 12166 Grade CuSn5 H120

Want to keep this datasheet? Save it now in your required format


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.

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.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





20.0 °C

8.85 - 8.9 g/cm³

Show Material materials with Density of 8.85 - 8.9 g/cm³



Elastic modulus

20.0 °C

120 GPa

Show Material materials with Elastic modulus of 120 GPa

Hardness, Vickers

20.0 °C

120 - 160 [-]

Show Material materials with Hardness, Vickers of 120 - 160 [-]

Poisson's ratio

20.0 °C

0.34 [-]

Show Material materials with Poisson's ratio of 0.34 [-]



Coefficient of thermal expansion

23.0 °C

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

Show Material materials with Coefficient of thermal expansion of 1.5E-5 - 1.9E-5 1/K

Typical for Leaded Phosphor Bronze

Specific heat capacity

20.0 °C

380 J/(kg·K)

Show Material materials with Specific heat capacity of 380 J/(kg·K)

Thermal conductivity

20.0 °C

96 W/(m·K)

Show Material materials with Thermal conductivity of 96 W/(m·K)



Electrical conductivity

20.0 °C

1.00E+7 S/m

Show Material materials with Electrical conductivity of 1.00E+7 S/m

Specific Electrical conductivity

17 % IACS

Show Material materials with Specific Electrical conductivity of 17 % IACS

Chemical properties



0.1 %

Show Material materials with Iron of 0.1 %


0.02 %

Show Material materials with Lead of 0.02 %


0.2 %

Show Material materials with Nickel of 0.2 %


0.01 - 0.4 %

Show Material materials with Phosphorus of 0.01 - 0.4 %


4.5 - 5.5 %

Show Material materials with Tin of 4.5 - 5.5 %


0.2 %

Show Material materials with Zinc of 0.2 %