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Eureka Bare Wire 18 swg

Eureka Bare Wire 18 swg

Product Code : JA-EE-7611

Eureka Bare Wire 18 swg (SKU JA-EE-7611) is a bare copper-nickel resistance wire of 1.25 mm diameter with a low temperature coefficient, supplied in 125 g reels for making resistance coils and for resistance experiments in physics laboratories. The 18 SWG gauge suits coils that need a fairly low resistance and whose value should stay steady as they warm. JaincoLab supplies this eureka resistance wire alongside finer eureka and constantan gauges.

Specifications

Eureka Bare Wire 18 swg is made of a copper-nickel alloy of low temperature coefficient, has a diameter of 1.25 mm and is supplied bare in reels of 125 g; the listing describes it as suitable for resistance coils.

ProductEureka Bare Wire 18 swg
SKUJA-EE-7611
AlloyEureka (copper-nickel)
PropertyLow temperature coefficient
Gauge18 SWG
Diameter1.25 mm
Reel125 g
FinishBare
Suitable forResistance coils

Applications of 18 SWG eureka resistance wire

Laboratories use 18 SWG eureka wire to wind resistance coils of known, stable value, to make up resistors for verifying the series and parallel laws, and as one of a set of gauges when students measure how resistance depends on the cross-sectional area of a wire.

  • Winding stable resistance coils for resistance boxes and circuit boards
  • Making known resistances for series and parallel combination experiments
  • Measuring how resistance depends on cross-sectional area with several gauges
  • Resistivity determination with a metre bridge or post office box

Scope of supply and ordering

Supplied as bare 18 SWG eureka wire, 1.25 mm in diameter, in 125 g reels. Other eureka and constantan gauges and nichrome wires are listed separately. Accessories, spares and quantities are confirmed on the quotation.

Minimum order quantity, lead time and packing are confirmed on each quotation according to the number of reels and the delivery destination. JaincoLab supplies resistance wires to schools, colleges and education projects in single reels or in bulk, with export to Africa, the Middle East and South and South-East Asia.

Frequently asked questions

What alloy is eureka wire?
Eureka is a copper-nickel alloy with a low temperature coefficient of resistance.

What diameter is the 18 SWG eureka wire?
It is 1.25 mm in diameter and is supplied at 125 g per reel.

Is eureka wire suitable for resistance coils?
Yes. The listing describes it as suitable for resistance coils, since its resistance changes little with temperature.

Which other gauges are available?
Eureka bare wire is also listed in 20, 24, 26, 30, 32 and 34 SWG, and constantan bare wire in 16, 22 and 28 SWG.

Related products

More resistance wires and bridge apparatus are in Electricity Equipment from JaincoLab, a physics lab equipment manufacturer in India.

Request a quote

To order Eureka Bare Wire 18 swg, send the number of reels and the delivery destination through the JaincoLab contact page or email [email protected]. Institutions and contractors buying under a tender can also reach us via the tenders page.

Last updated: September 2026

   
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Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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