Heavy-Duty Metal Often Used in Cookware

This page is the CodyCross answer for the clue below from House of Horrors, Group 1113, Puzzle 1 (Disembodied Voice).

Question is: Heavy-Duty Metal Often Used in Cookware

and the answer is: CASTIRON

Word Meaning:

CAST IRON — A hard and brittle, but strong, alloy of iron, carbon, and silicon, formed by casting in a mould.

Definitions from Wiktionary.