Iron Ingot – Official Minecraft Wiki
Iron golems drop 35 iron ingots upon death, regardless of the way they die. The looting enchantment does not increase the amount of iron ingots dropped. Zombies []. Zombies, husks, and zombie villagers have a % chance of dropping either an iron ingot, carrot, or potato when killed by a player or tamed wolf. This is increased by 1% per level of looting.