Chromel D is an alloy used at operating temperatures up to 1850 °F (1030°C). It is a non-magnetic alloy made from nickel, chromium and iron that has a lower resistivity than Chromel C, but improved resistance to selective oxidation of chromium.
*Large diameter wire or small wire held above 250°C for extended time. This data should be used for heating element design purposes.
**Small diameter wire; rapidly cooled after annealing. Larger sizes may exhibit resistivity gains of up to 6%.