All Steel and Hard Carbide Materials

Hard and strong materials that machines and tools are made of, including steel, an alloy of iron and carbon with much better mechanical properties than pure iron, and tungsten carbide, a very hard compound of tungsten and carbon used for cutting tools and wear parts. A material belongs here when the cited article describes it as a steel, a carbide or another material valued for its hardness and strength. It excludes soft metals, ceramics and plastics.