Extra High Strength Platinum Thermocouple: XXR & XXS

Extra High Strength Platinum Thermocouple: XXR & XXS

Extraordinary Strength, Exceptional Accuracy

XXR & XXS Platinum Thermocouple wire withstands the harshest environment and the most demanding applications. We offer type R and S wire, and it can be manufactured in any diameter down to 0.03mm. With various capability tests completed, XXR & XXS is available commercially to meet your requirements.

• Lasts 3 to 5 times longer than general platinum thermocouple wire
• Lasts 400 times longer than standard thermocouple wire
• Meets IEC 60584 class 1 tolerance

Superior strength for reliable measurements

XXR & XXS has a stronger platinum leg by microalloying zirconium with the platinum to stabilize the grain boundaries, which prevents the formation of bamboo structures.

It lasts up to 400 times longer than standard thermocouple wire, offering a reliable temperature reading in harsh environments. We’ve proven this through accelerated lifetime testing, applying high loads at high temperatures to the wires. It also shows exceptional accuracy, meeting IEC60584-1:2013 class 1 tolerance. With reducing drift during thermal cycle testing, it has been confirmed that it has a better EMF output stability than conventional thermocouples.

High temperature durability

During stress testing it maintains excellent functionality after 2450 hours at 1400°C with 400psi tensile loading. Below micrographs show that under the same tensile loading per unit area, standard platinum thermocouple wire forms a bamboo structures and fails after just six hours.

Consistent accuracy

Both type S and type R thermocouples with XXR/XXS wire repeatedly demonstrate IEC 60584-1:2013 class 1 performance. And while meeting ASTM E230 standard tolerances, they’re also within ASTM E230 special tolerances at high temperatures.

Minimal drift

Over a 900 hour thermal cycle, both XXR and XXS wires are more stable, with standard thermocouple wire drifting at a faster rate. And we saw similar trends under a more extreme temperature range.

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