The following two hole alumina ceramic tube type insulators are available in six inch lengths.

Buy Nichrome Wire, Non Magnetic Ribbon for mass spectrometer heaters here. Choose from varying thickness, Nichrome filament wire sold by the foot.

Chromel is a nickel/chromium alloy used in the production of thermocouples and thermocouple extension wires.

Tantalum/Tungsten Wire and Ribbon has excellent corrosion resistance and is used in the manufacture of heating elements.

Chromalloy O wire is an alloy wire used at operating temperatures up to 1200°C. Its chemical composition gives good oxidation resistance especially under conditions of frequent switching or wide temperature fluctuations. Applications include heating elements in both domestic and industrial appliances and in control resistors.

Tantalum Wire and Ribbon is corrosion resistant and has good thermal conductivity. Some of its uses is in the manufacture of heating elements, vacuum tubes and other high temperature parts

Rhodium/Platinum wire and ribbon are highly resistant to oxidation and corrosion at high temperatures and are used in the production of thermocouples