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Thermowell Material Guide

Thermowell materials for various average applications are listed in the following table. The list has been carefully prepared and takes into consideration such factors as contamination, electrolysis, catalytic reaction and other variables. Standard materials are recommended wherever possible. Service may vary, however, in industrial use as a result of temperature, pressure, concentration and impurities in the corrosive medium.

While the recommendations cannot guarantee service, they will serve as an effective guide. Thermo Sensors Corporation can provide consultation for special applications upon request.

Industry	Application	Conditions	Material
Cement and Lime	Kiln hot end (clinker) cool end (flue) Clinker cooler Exit Flue	to 2600 °F 600-2000 °F to 1200 °F	C30 Ceramic 28% Chrome Iron - Inconel 601 Cerampak - 28% Chrome Iron - Inconel 601 Inconel 601, 28% Chrome Iron - Silicon Carbide, Silicon Nitride
Ceramic	Dryers Kilns-Brick Vitreous enameling Grinding wheels Abrasive grits Porcelain pottery	1800-2200 °F 1600-2000 °F to 500 °F to 2300 °F 2000-2400 °F	Carbon Steel - Silicon Carbide - Silicon Nitride - Wrought Iron C30 Ceramic - Inconel 600 - Silicon Carbide - Silicon Nitride Inconel 600 - Firebrick - 28 % Chrome Iron - Silicon Carbide - Silicon Nitride Wrought Iron C30 Ceramic C30 Ceramic
Chemical	Acetate Solvents Acetic Acid Acetic Anhydride Acetone Acetone Acetylene Alcohol Ethyl Alcohol Methyl Aluminum Aluminum Acetate Aluminum Chloride Aluminum Sulphate Ammonia Ammonia Hydroxide Ammonia Liquors Ammonia Phosphate (Dibasic) (Monobasic) (Tribasic) Ammonium Chloride Ammonium Nitrate Ammonium Sulphate Amylacetate Aniline Asphalt Barium Carbonate Barium Chloride Barium Hydroxide Benzaldehyde Benzene Benzine Benzol Boracic Acid Brines Bromine Butadiene Butane Buthlacetate Butyl Alcohol Butylenes	Crude or Pure 10%-70 °F 50%-70 °F 50%-212 °F 99%-70 °F 99%-212 °F 212 °F 70 °F 212 °F 70 °F 212 °F Molten Saturated 10%-70 °F Saturated 70 °F 10%-212 °F Saturated 212 °F All concentrations 70 °F All Concentrations 212 °F All Concentrations 70 °F All Concentrations 212 °F 5%-70 °F 10%-212 °F Saturated 212 °F All Concentrations 70 °F 70 °F 5%-70 °F Saturated 70 °F Aqueous - Hot 70 °F Hot 5% Hot or Cold 70 °F Dry 125 °F 70°F	Monel - Nickel 304 Stainless Steel 304 Stainless Steel 316 Stainless Steel - Monel Monel Monel Monel - Nickel 304 Stainless Steel 304 Stainless Steel - Monel - Nickel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel Cast Iron 304 Stainless Steel Hastelloy B 304 Stainless Steel 304 Stainless Steel 316 Stainless Steel 316 Stainless Steel 304 Stainless Steel - 316 Stainless Steel 2024-T4 Aluminum - 304 Stainless Steel - 316 Stainless Steel 2024-T4 Aluminum - 304 Stainless Steel - 316 Stainless Steel Monel Phosphor Bronze Monel 316 Stainless Steel 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel 316 Stainless Steel 316 Stainless Steel Monel - 304 Stainless Steel 304 Stainless Steel - Monel C1018 Steel - 304 Stainless Steel - Monel - Nickel 304 Stainless Steel Monel Monel - Hastelloy C 316 Stainless Steel - Hastelloy C C1018 Steel C1018 Steel 304 Stainless Steel C1018 Steel - 2024-T4 Aluminum - Monel - Inconel 600 304 Stainless Steel 304 Stainless Steel Monel Tantalum Sleeved Monel Brass - 304 Stainless Steel 304 Stainless Steel Monel Copper - 304 Stainless Steel C1018 Steel - Phosphor Bronze

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Thermo Sensors Corporation • P.O. Box 461947 • Garland, Texas 75046 • 1-800-889-5478 • 972-494-1566