Manganin Wire 6J8 / 6J12 / 6J13

Manganin 6J8, 6J12 and 6J13 precision resistance wire, drawn from 0.05 mm to 6.00 mm. Very low temperature coefficient of resistance and a small thermal EMF against copper - the reference material for standard resistors, precision shunts, metering elements and ratio bridges.

Grades & composition

Designation and composition.

GradeNominal compositionChinese standardNearest international reference
6J8 Cu base, Mn approx. 8 - 10 %, Ni approx. 1 - 2 % GB/T 6145-2010 ASTM B267 · IEC 60115 series
6J12 Cu base, Mn approx. 11 - 13 %, Ni approx. 2 - 3 % GB/T 6145-2010 ASTM B267 · IEC 60115 series
6J13 Cu base, Mn approx. 11 - 13 %, Ni approx. 2 - 5 %, low-thermal-EMF variant GB/T 6145-2010 ASTM B267 · IEC 60115 series

Scroll the table sideways to see all columns.

Electrical & dimensional

Supply range and condition.

PropertyValue
Resistivity @ 20 °CConfirmed on the batch inspection report
Temperature coefficient @ 20 °CVery low. Confirmed per batch against the technical agreement.
Thermal EMF against copperVery low; 6J13 is the lowest of the three
Diameter range0.05 - 6.00 mm
TemperM (soft)
SurfaceBright, clean
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.

  • Standard resistors
  • Precision shunt resistors
  • Metering elements
  • Ratio bridges and measuring instruments

Why 6J13 exists: it is the variant chosen when thermal EMF against copper must be as small as possible - metering and ratio-bridge duty. Manganin's lower TCR and lower thermal EMF make it the reference material for standard and precision shunts. Manganin vs constantan.

6J8 6J12 6J13 GB/T 6145-2010
Manganin Wire coil
Manganin 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)
Diameter0.05 - 6.00 mm round wire
HS classificationHS 7408 (copper alloy wire)
DocumentsMaterial test certificate standard; third-party test report on request
All six families Request a Quotation

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: Manganin vs constantan · Shunt material choice

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