gray iron

American  

noun

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

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Etymology

Origin of gray iron

First recorded in 1655–65

Example Sentences

To enter 732 S. Vermont Ave., you must carefully shove open a rusted gray iron gate until a gap large enough for you to slide through sideways appears.

From Los Angeles Times • Jan. 29, 2022

Above the dark gray iron, stone walls formed the North Tower.

From "Huntress" by Malinda Lo

“And the gray iron foundry over there uses three times as much iron as we do, and it made more than 12,000,000.”

From The Romance of the Reaper by Casson, Herbert Newton

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

From Practical Mechanics for Boys by Zerbe, James Slough

Face set in a fighting mask and eyes hard as gray iron, deeper and deeper he drove his now irresistible forces.

From Skylark Three by Wessolowski, Hans Waldemar