D defs.my
Entry 1 sense Webster, 1913

Tungsten steel

· IPA
01 A steel containing a small amount of tungsten, noted for tenacity and hardness, even under a considerable degree of heat. Magnets made of …
  1. 1.
    A steel containing a small amount of tungsten, noted for tenacity and hardness, even under a considerable degree of heat. Magnets made of it are said to be highly permanent. It often contains manganese.(Metal.)