Tungsten-Rhenium Fine Diameter Thermocouple Wire
High Accuracy!
High-Temperature Applications Matched Pairs!
Shown smaller than actual size.
⻬ Calibrated Accuracy Guaranteed ⻬ Melting Point in Excess of 2315°C (4200°F) Tungsten-rhenium thermocouple alloy combinations were developed to meet the need for measuring ultra-high temperatures in the 2315°C (4200°F) range.
To Order (Specify Model Number) Symbol
OMEGA sells 3 widely used tungsten-rhenium thermocouple alloy combinations: Type G: Tungsten (+) vs. Tungsten 26% rhenium (–) Type C: Tungsten 5% rhenium (+) vs. Tungsten 26% rhenium (–) Type D: Tungsten 3% rhenium (+) vs. Tungsten 25% rhenium (–) To guarantee the limits of error, OMEGA sells tungsten-rhenium thermocouple wire only in matched pairs by the double foot. Because of the inherent brittleness of unalloyed tungsten, rhenium has been added to the positive leg of types C and D to improve handling characteristics. The average emf of types C and D is slightly less than that of the unalloyed type G. All 3 thermocouple combinations can be used to 4200°F (2315°C) in hydrogen or inert-gas atmospheres and in a vacuum. They deteriorate rapidly under oxidizing conditions and should not be used in air or atmospheres containing oxygen. For other wire sizes and large quantities, consult the Special Quotations department.
MOST POPULAR MODELS HIGHLIGHTED!
Uninsulated Refractory Metal Thermocouple Wire Wire Dia. Material mm (in) 0.08 (0.003) 0.13 (0.005) Tungsten vs. 0.25 (0.010) Tungsten 26% Re 0.38 (0.015) 0.51 (0.020) 0.08 (0.003) 0.13 (0.005) Tungsten 5% Re vs. 0.25 (0.010) Tungsten 26% Re 0.38 (0.015) 0.51 (0.020) 0.13 (0.005) Tungsten 3% Re vs. 0.25 (0.010) Tungsten 25% Re 0.38 (0.015) 0.51 (0.020)
Model Number WW26-003 WW26-005 WW26-010 WW26-015 WW26-020 W5W26-003 W5W26-005 W5W26-010 W5W26-015 W5W26-020 W3W25-005 W3W25-010 W3W25-015 W3W25-020
Price/ Double ft (1')** $22 25 45 70 95 22 25 45 70 95 25 45 70 95
* Not an ANSI symbol. ** Sold only as matched pairs. A double foot is 1' of positive and 1' of matched negative wire. Note: Metric dimensions are approximate. Ordering Example: 10 ft of W5W26-010, 0.25 mm (0.010") Dia., uninsulated refractory metal tungsten-rhenium thermocouple wire, $45/ft x 10 ft = $450.
Extension-Grade Wire Uninsulated Lead Wire for Tungsten-Rhenium Thermocouples Thermocouple Symbol Used With
*
W5%Re vs W26%Re
Model Number EX-C-010 EX-C-020
Temperature Range °C (°F) 204 to 426 (400 to 800) 204 to 426 (400 to 800)
Insulated Extension-Grade Wire Also Available. See page H-36. * Not an ANSI symbol.
H-15
Price/ Wire Double Dia. ft (1') 10 mil
$0.35
20 mil
0.70
Extreme (High) Temperature Sensors and Accessories Platinum Thermocouples Type R, S, and B, Tungsten-Rhenium Type C and D
Bare Wire Platinum Thermocouples P10R, P13R, and P30R Series. Shown larger than actual size. See Page A-17.
HIGH TEMPERAT URE
®
Ceramic Sheath Thermocouples RAT/BAT/SAT Series. See Page A-125.
H Extreme (High) Temperature Metal Sheathed Probes (2315°C [4200°F]) XMO Series. See Page A-63.
High Temperature Ceramic Accessories ORX Series. See Page A-143.
Ceramic Connectors NOX Series. See Page G-19.
Ceramic Protection Tubes–PTRA Series. See Page A-139.
All models shown smaller than actual size.
Insulated Duplex Extension Wire
To Order (Specify Model Number) Material
Thermocouple Used With
Cu-Alloy 11 R and S Cu-Cu Ni/AI-Ni/Cu
B C
Model Number EXTT-RS-24 EXGG-RS-24 EXTT-RS-20 EXTT-B-26S EXTT-B-24S EXTT-B-20 EXGG-C-24 EXTT-C-24
Maximum Temperature °C °F 200 392 200 392 200 392 100 212 100 212 100 212 427 800 260 500
Wire Dia. AWG mm 24 0.51 24 0.51 20 0.81 26 0.40 24 0.51 20 0.81 24 0.81 24 0.81
H-16
Price/ 300 m (1000') $480 390 510 400 370 390 650 1200
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) |
info@omega.com
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BENELUX www.omega.nl Amstelveen, NL 0800-099-33-44
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