[view] • Chain Armor is a type of armor, which is currently unattainable through crafting. It can only be made using Fire with cheats, as that is the only way to obtain a fire block. However, you can also use the command /give @p fire <amount> to obtain fire as a block. Chain Armor is stronger than Leather or Gold armor, but the only way to legitimately obtain Chain Armor is via Villager trading, a rare drop from zombies and skeletons (albeit very damaged), or as the aformentioned, through use of cheats.
To craft Chainmail Armor you need to use fire blocks, putting them in the usual armor shape, but as of 1.3.1, Chain 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.