Thermite-Carbon Cord, or T-C-C, is a type of incendiary device used by the UNSC. It consists of a long wire of a thermite-carbon alloy, with a charge used to ignite it. Once the charge is activated, a large amount of heat energy is released and the subsequent burst of heat is capable of enormous amounts of anti-material damage melting through solid metal.

The SPARTAN-III Beta Company used Thermite-Carbon Cords during Operation: TORPEDO. Tom-B292 used it to destroy the dump valve to a reactor of a Covenant ship yard.[1]

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