[view] • Chainmail armor is a normally-uncraftable form of armor. It can only be made using Fire with cheats, as that is the only way to obtain a fire block. Chainmail armor is stronger than Leather or Gold armor. The only way to legitimately obtain Chainmail Armor is via Villager trading, or a rare drop from zombies and skeletons,albeit very damaged. However, you can also use the command "/give @p fire <amount>".
To craft Chainmail Armor you need to use fire blocks, putting them in the usual armor shape, but as of 1.3.1, Chainmail armor can be obtained through the use of villager trading, using commands, or it can be dropped by zombies, or skeletons (if the mob is wearing the armor).
Chainmail Chestplate obtained through the use of villager trading.
Chainmail Leggings obtained with villager trading.