HIGH-PURITY ELEMENTS, POWDERS & ALLOYS
Thermocouple & Specialty Wires
Thermocouple-grade, resistance and specialty alloy wires for temperature measurement, electrical heating, precision resistance and high-temperature applications.

BROWSE BY WIRE TYPE
Find the wire system for your application
Thermocouple WiresBase-metal and noble-metal wire pairs for temperature measurement.Browse Products
Noble-Metal Thermocouple WiresPlatinum and platinum-rhodium systems for high-temperature measurement inquiries.Browse Products
Resistance Heating WiresNiCr and FeCrAl alloy wires for electrical heating and resistance applications.Browse Products
Precision Resistance WiresCuNi and CuMnNi alloys for precision electrical and measurement applications.Browse Products
SELECTION GUIDE
Common Thermocouple Types
These qualitative material pairings help identify a starting point. Wire construction, tolerances and suitability are confirmed during quotation.
| Type | Positive Leg | Negative Leg | General Use |
|---|---|---|---|
| K | Ni-Cr | Ni-Al | General industrial temperature measurement |
| J | Fe | Cu-Ni | General industrial measurement |
| T | Cu | Cu-Ni | Lower-temperature and laboratory measurement |
| E | Ni-Cr | Cu-Ni | High-output base-metal thermocouple applications |
| N | Ni-Cr-Si | Ni-Si-Mg | Elevated-temperature measurement |
| R | Pt-13Rh | Pt | High-temperature noble-metal thermocouple |
| S | Pt-10Rh | Pt | High-temperature laboratory and furnace applications |
| B | Pt-30Rh | Pt-6Rh | High-temperature noble-metal measurement |
BEYOND THERMOCOUPLES
Specialty Resistance & Heating Alloys
Beyond thermocouple alloys, Basis Materials supplies resistance and specialty wires for laboratory, furnace, electrical-heating and precision measurement applications.
- NiCr 80/20
- NiCr 60
- FeCrAl
- Constantan / CuNi44
- Manganin / CuMnNi
- Platinum and Pt-Rh wires
CURRENT CATALOG
Browse Thermocouple & Specialty Wires
18 products
PROJECT-SPECIFIC SUPPLY
Custom Wire Specifications
Basis Materials can supply thermocouple and specialty alloy wires to project-specific requirements. Diameter, alloy composition, spool quantity, packaging and other specifications can be reviewed during quotation.
- Alloy / thermocouple type
- Wire diameter
- Bare or insulated
- Pair or individual alloy leg
- Spool / coil requirement
- Length or weight
- Calibration / tolerance requirement
- Quantity
- Application
- Additional requirements
Request a Custom Wire
Share the details you know; unconfirmed specifications can be discussed after your inquiry.