Scrap iron Meaning, Definition & Usage

  1. noun iron to be melted again and reworked

WordNet

Definitions
  1. . (a) Cuttings and waste pieces of wrought iron from which bar iron or forgings can be made; called also wrought-iron scrap. (b) Fragments of cast iron or defective castings suitable for remelting in the foundry; called also founding scrap, or cast scrap.

Webster 1913