gray iron

  1. pig iron or cast iron having much of its carbon in the form of graphite and exhibiting a gray fracture.

Origin of gray iron

First recorded in 1655–65

Words Nearby gray iron Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use gray iron in a sentence

  • Mild steel is a good test, and a light gray iron is admirable for practice lessons.

  • In this case, as well as in Figs. 32 and 33, both the field and the armature are made of soft gray iron.

    Electricity for Boys | J. S. Zerbe
  • At one point, not far from Cle-ellum River, a bed of gray iron ore crosses the magnetic ore at right angles.

    A Report on Washington Territory | William Henry Ruffner
  • An average of over 400 tons of iron is poured daily, and 426 tons of gray iron have been poured in a single day.

  • The pistons as provided in the A-7 engines are cast from a mixture of steel and gray iron.

    Aviation Engines | Victor Wilfred Pag