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(949) 407-8904 Mon - Fri 08:00 - 17:00 23661 Birtcher Dr., Lake Forest, California, USA

TC0933 Platinum-Rhodium (Pt-Rh) Thermocouple Wire

Catalog No. TC0933
Material Type R, Type S, Type B
Stanford Advanced Materials (SAM) is a trusted supplier of high quality Platinum-Rhodium thermocouple wires. We offer tantalum Pt-Rh thermocouple wires with a variety of dimensions.


Platinum Rhodium Thermocouple Wire Description

Types R, S, and B thermocouples use platinum or a platinum/rhodium wire for each conductor. Platinum-Rhodium thermocouple wires have high resistance to oxidation and corrosion at high temperatures.

Platinum-Rhodium Thermocouple Wire Pt-Rh

Platinum Rhodium Thermocouple Wire Specification



Product Name Specifications Wire Dia.
mm (inch)
PT6001 Type R thermocouple wire (+)87% Pt, 13% Rh

(-)100% Pt

0.03 (0.001)

0.05 (0.002)

0.08 (0.003)

0.13 (0.005)

0.20 (0.008)

0.25 (0.010)

0.38 (0.015)

0.51 (0.020)

0.64 (0.025)

0.81 (0.032)

PT6002 Type S thermocouple wire (+)90% Pt, 10% Rh

(-)100% Pt

PT6003 Type B thermocouple wire (+)70% Pt, 30% Rh

(-)94% Pt, 6% Rh

Platinum Rhodium Thermocouple Wire Notes

Types R and S are suggested to be applied for continuous use in oxidizing or inert atmospheres up to 2550°F (1398°C) or short-term exposures to 2700°F (1482°C). Type B is recommended for continuous use up to 3100°F (1704°C) in oxidizing or inert atmospheres. When operating near these maximum temperatures, the heavier gauge wire sizes are recommended.

All these three thermocouple types can be used in a vacuum for short periods of time. Type B offers greater stability in such applications. None of them should be used in reducing atmospheres or in atmospheres containing metallic or non-metallic vapors unless protected by non-metallic protection tubes. Avoid inserting directly into metallic protection tubes!

Wire diameters are from 0.001 to 0.032″ (0.025 to 0.812 mm). When requested, the wire is supplied in matched pairs which meet or exceed standard limits of error. Special-limits-of-error wire is supplied on request and must be ordered as matched pairs.

Insulated duplex extension grade wire for types R, S, and B are also available.

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Platinum-Rhodium (Pt-Rh) Thermocouple Wire
Average rating:  
 1 reviews
by Jonathan Rothschild on Platinum-Rhodium (Pt-Rh) Thermocouple Wire

exactly as advertised. excellent quality.