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Chromel-A Nickel Chomium Wire, Unpolished (Mill), Standard Tolerance, Inch
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About Chromel-A Nickel Chomium Wire, Unpolished
Nickel-Chromium (Chromel A (80-20) is one of standard alloys for electrical resistance wire for heaters and electrical appliances. Various trade names and compositions exist for these alloys. The composition is 78.4 percent Nickel, 20 percent Chromium, 1 percent Silicon and 0.05 percent Iron. Chromel A has a continuous service temperature of 2150 degrees F (1177 degrees C), which is higher than the more common Iron rich alloys on the market. Chromel A also performs better in high temperature corrosive environments and is used in the medical device industry. The smaller gauge wires are used to make inoculating needles and loops that are used in microbiology labs. Cauterizing instruments can also be made utilizing this alloy. Other applications include resistors, rheostats, resistance thermometers and potentiometers. Typical uses: hot-wire cutting, heater wire, inoculating needles, cauterizing instruments.
