Platinum / Rhodium Thermocouple Alloy Pt90 / Rh10 - Supplier Data by Goodfellow

Background

The positive element of the type S thermocouple contains Platinum / Rhodium Thermocouple Alloy Pt90 / Rh10. Type S thermocouples are characterised by a high degree of chemical inertness and stability at high temperatures. Type S Thermocouples using Platinum / Rhodium Thermocouple Alloy Pt90 / Rh10. are commonly used as a standard for calibration of base metal thermocouples.

Key Properties

The key properties of Platinum / Rhodium Thermocouple Alloy Pt90 / Rh10 are tabulated below.

Table 1. Key properties

Electrical Properties

 

 

 

Temperature coefficient ( K-1 )

0.0017

Electrical resistivity ( µOhm.cm )

18.4-19.2

Mechanical Properties

 

 

 

Elongation at break ( % )

<35

Hardness - Brinell

90-165

Tensile strength ( MPa )

320-620

Physical Properties

 

 

 

Density ( g.cm-3 )

19.97

Melting point ( °C )

1830-1855

Thermal Properties

 

 

 

Thermal conductivity ( W.m-1.K-1 )

38 @ 23°C

About Goodfellow

Goodfellow supplies metals, ceramics and other materials to meet the research, development and specialist production requirements of science and industry worldwide.

 

 

Source: Goodfellow

 

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Date Added: Jan 7, 2004 | Updated: Jul 7, 2011
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