Cu44 constantan wire with 0.20/0.25/0.30/0.40mm diameter, DIN 125 or 160 spool

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Basic Info

Payment Type:	Telegraphic Transfer (TT,T/T)

Product Description

Low temperature coefficient of resistance (TCR) and wide operating temperature range (below 500°C)

Good properties on mechanical working, high resistance of corrosion

Constantan wire used for variable and strain resistance elements in alternative instruments

Chemical composition:

Standard: GB/T 6145-2010

Constantan properties:

Diameter and tolerance:

Wire includes: CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi40 and CuNi44

Wire and strip both are available

Cu: Bal

Mn: 1 to 2%

Ni: 39 to 41%

Resistivity (20°C): 0.48±0.03 μΩ.m

Temperature co efficiency of resistance (20°C): ≤±40αx10-6/°C

Thermal EMF vs copper (0 to 100°C): 45μV/°C

Maximum working temperature: ≤500°C

Elongation: ≥15%

Tensile strength: ≥390N/mm

0.02 to 0.028mm: ±0.002mm

0.032 to 0.10mm: ±0.003mm

0.112 to 0.28mm: ±0.005mm

0.135 to 0.50mm: ±0.010mm

0.56 to 1.0mm: ±0.015mm

1.06 to 1.60mm: ±0.020mm

1.70 to 2.12mm: ±0.025mm

2.24 to 3.00mm: ±0.030mm

3.15 to 4.50mm: ±0.035mm

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