Various sheath materials of maximum allowable temperatures about tubular heater
Sheath Material | Maximum Sheath Temperature | Applications |
Copper | 350 °F (170 °C) | Immersion into water ,non corrosive low viscosity liquids |
Steel | 750 °F (400 °C) | Oil, wax, asphalt, cast in aluminum or iron |
Stainless Steel 304-316 | 1200 °F (600 °C) | Corrosive liquids, food industry, sterilizers |
Incoloy | 1500 °F (815 °C) | Air, corrosive liquids, clamped to surfaces |