Cumin 11

Cumin 11 is a copper based alloy with additions of manganese and nickel, with a very low EMF against copper.
                     

  • Particularly suited for DC circuitry with its low temperature coefficient.

  • A low density reduces weight requirements.

  • Excellent use in custom made thermocouple applications.

  • Also for electric resistance standards, precision wire wound resistors etc.

 Physical and Mechanical Properties


 

Units

 

Maximum continuous operating temperature in air

°C

850

Nominal composition

%

Ni 4

Mn 11

Cu Bal.

Density at 20°C

g/cm³

8.40

Resistivity at 20°C

µΩcm

43

Thermal conductivity at 20°C

W/mK

22

Specific heat capacity at 20°C

kJ/kgK

0.410

Melting point (approx.)

°C

1020

Tensile strength Rm, 1 mm wire – annealed

N/mm²

390

Elongation at break, 1 mm wire - annealed

%

30


Temperature dependant Factors for Cumin II

Reference temperature 20°c

Temp °C

15-35

Temp °F

59 - 35

Resistivity Coefficient (10-6/K)

0 ± 15

Coefficient of thermal expansion (10-6/K)

18 (for 100°C)

The figures given in these tables represent nominal or typical values.

Information contained within this technical data sheet is based upon the general experience of Scott Precision Wire Ltd and is believed to be correct at the time of issue. 

No warranty is given or is to be implied from  the details above. 

Customers are advised to carry out independent tests in order to determine the suitability of any Scott Precision Wire Ltd product for an application.


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