This specification covers the requirements for bare, solid conductor, tungsten and rhenium alloy thermoelements having diameters of 0.13 mm (0.005 in.) to 0.5 mm (0.020 in.)supplied in matched pairs. These thermo elements is suitable for use either in bead-insulated, bare-wire thermocouples, or in compacted metal-sheathed, ceramic insulated thermocouple material or assemblies.
 

This specification covers the thermocouple combinations of tungsten-3 % rhenium versus tungsten-25% rhenium (W3RE/W25RE) and tungsten-5 % rhenium versus tungsten-26 % rhenium (W5RE/W26RE). All information applies to both combinations unless otherwise noted.
 

Choose types from following table
 

 
Ordering Information
A purchase order for thermocouple material conforming to this specification should specify the following:
1: Thermocouple Wire Composition— May be doped TungstenRhenium3/TungstenRhenium25 or doped TungstenRhenium5/TungstenRhenium26.
1.2: Wire Size—Specify size with each order.
1.3: Wire Length—Specify total amount of each wire and minimum continuous length.
1.4: Thermocouple Calibration—Paired wires is furnished to the initial calibration tolerances
1.5: Required Mechanical Properties
1.6 Instructions for Spooling, Packaging, and Labeling—Wires is supplied on spools of a nominal 100 mm (4-in.)diameter core and boxed individually, unless otherwise requested.
Each spool is marked to identify the wire composition, diameter, quantity, processor’s name, spool designation and customers purchase order number in a manner to identify the pair of wires to be used to form a thermocouple meeting the calibration requirement.
1.7 Tests and Certifications Required from the Processor—Unless otherwise requested, the processor supply a certificate with each order stating the wire composition, size and calibration information.

Special sizes are available, please contact sales for inquiries.
 

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