Pure Nickel Wire - N4 / N6, drawn from 0.025 mm

Pure nickel wire in grades N6 (Ni200) and N4 (Ni201), drawn in soft, half-hard or hard temper from 0.025 mm to 6.00 mm. The standard lead material where an iron or steel lead would oxidise, scale and fail at temperature.

Grades & composition

Designation and composition.

GradeNominal compositionChinese standardNearest international reference
N6
Ni200		 Ni ≥ 99.5 %, balance Fe / Si / S / P GB/T 5235-2021 ASTM B160
N4
Ni201		 Ni ≥ 99.0 % GB/T 5235-2021 ASTM B160

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Electrical & dimensional

Supply range and condition.

PropertyValue
Resistivity @ 20 °CLow. Confirmed on the batch inspection report.
Temperature coefficient @ 20 °CConfirmed per batch
Diameter range0.025 - 6.00 mm
TemperM / Y2 / Y
SurfaceBright, oxide-free finish (as drawn or annealed)
Mechanical propertiesTo GB/T 21653-2008
Values above are nominal. Composition, resistivity, temperature coefficient of resistance (TCR) and thermal EMF are confirmed by the inspection report issued with each shipment - this page confirms feasibility and range, it is not the inspection certificate.

Typical applications

Where this grade is specified.

  • Heating-element and heating-tube lead wires
  • Electron tube, vacuum device and lamp leads
  • Electrodes and spark-plug components
  • Nickel mesh, woven cloth and battery current collectors
  • Corrosion-resistant parts

N4 or N6? N6 is the higher-purity grade: choose it where electrical conductivity and sealing to glass or ceramic matter most. N4 meets the general nickel specification at lower cost. Full comparison.

Why the lead matters: a cheaper lead material oxidises, scales and welds unreliably at temperature. Nickel seals well to glass and ceramic and holds its joint strength, which is why no downgraded substitute is offered on this line.

N6 · Ni200 N4 · Ni201 GB/T 5235-2021 ASTM B160 reference
Pure Nickel Wire coil
Pure Nickel Wire - supplied in the temper your drawing calls for.

Order facts

What you need before you send a drawing.

Minimum orderSample 100 g at cost · orders from 1 kg · production pricing from 5 kg
Standard lead time3 - 7 days from order confirmation
Temper suppliedM (soft) / Y2 (half-hard) / Y (hard)
Diameter0.025 - 6.00 mm round wire
HS classificationHS 7505 (pure nickel wire)
DocumentsMaterial test certificate standard; third-party (CNAS) test report, RoHS / REACH declarations on request
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Export & compliance

Stated plainly, not oversold.

Export note - nickel-containing material to the United States: assess California Prop 65 (metallic nickel is listed with no safe harbour). To the EU: observe REACH nickel release limits and the General Product Safety Regulation (GPSR), which applies from 2026-06-01 and requires an EU-based responsible person. Bare alloy wire is a raw material, not a finished electrical device, so UL / CSA / CE device marks do not apply to it. Composition, resistivity, TCR and thermal EMF are stated as nominal on this page and are confirmed by the inspection report issued with each shipment.
Related selection notes: N4 vs N6 · Choosing the temper · What to specify

Next step

Send the grade, diameter, temper and quantity.

Tell us what the wire has to do and the date your line needs it. We come back with a confirmed lead time, the achievable tolerance and the documents we can issue. Sample 100 g at cost; orders from 1 kg; production pricing from 5 kg.

Request a Quotation Samples & trial orders