Definition of "scrap iron" []

• Fragments of cast iron or defective castings suitable for remelting in the foundry; -- called also foundry scrap, or cast scrap. (noun)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "She was the Olinda, bound for Germany from Montevideo with a cargo of wool, hides, cotton, scrap iron and wood."
• "They would not want to use solid round shot against the infantry; instead Sharpe knew they would load the gun with canister, the deadly metal container of musket balls and scrap iron that shattered as soon as it left the barrel and sprayed its lethal mixture like bent nails fired from a coachman’s blunderbuss."