Resistance Copper

                   

Resistance Copper is specially selected for consistent resistivity and carefully processed in order to provide a high quality, cost effective resistance wire.

Available in sizes down to 0.1 mm.


Physical and Mechanical Properties

Values stated are nominal or typical.

 

Units

Value

Maximum continuous operating temperature in air

°C

°F

300

572

Nominal composition

%

Cu > 99.9

Density at 20°C

g/cm³

lb/in³

8.9

0.321

Resistivity at 20°C

µWcm

W/cmf

1.73

10.4

Temperature Coefficient of Resistance, 20–200°C

1/K

0.00393

Coefficient of thermal expansion, 20 – 300°C

1/K

1/°F

18 x 10-6

10 x 10-6

Thermal conductivity at 20°C

W/mK

Btu.in/ft².h.°F

400

2825

Specific heat capacity at 20°C

kJ/kgK

Btu/lb°F

0.386

0.09

Melting point (approx.)

°C

°F

1150

2102

Typical Tensile strength - annealed *

N/mm²

lb/in²

220

32000

Typical Tensile Strength – fully cold worked *

N/mm²

lb/in²

385

56000

Typical Elongation at break - annealed *

%

³ 25

Modulus of Elasticity (tension) at 20°C – annealed

N/mm²

lb/in²

117000

17 x 106

Modulus of Rigidity (torsion) at 20°C - annealed

N/mm²

lb/in²

44000

6.4 x 106

* Values will vary dependant upon wire diameter.

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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