Section 15 Base metals and articles of base metal 72 Iron and steel 72 04 Ferrous waste and scrap; remelting scrap ingots of iron or steel 72 04 50 - Remelting scrap ingots 72 04 50 00 - Remelting scrap ingots Commodity Code Description 72 04 50 00 000 - Remelting scrap ingots