Duralumin

Duralumin is the alloy of miners in a hurry: it mines faster than steel, but wears out faster than iron. In real life it is an aviation alloy: mostly aluminum, with a little copper, magnesium and manganese.

Making it

It is melted in the foundry, with a heat 2 fuel (at least a coal): see the recipe. You need all four metals: see the ores. Magnesium and manganese need an iron-level pickaxe.

Tools and weapons

All of them mine at iron level. Shapes and amounts: the recipes.

  Duralumin Iron (reference)
Durability 200 250
Mining speed 7.5 6
Enchantability 15 14
Sword damage 4.5 6
Sword attack speed 2.0 1.6

The sword hits more often (2.0 times per second) but less hard.

Armor

It protects like iron armor, but wears out fast. It is the easiest to enchant well.

Piece Protection Durability
Helmet 2 110
Chestplate 6 160
Leggings 5 150
Boots 2 130
Full set 15 550

Toughness: 0. Enchantability: 15. For comparison, iron has 15 protection and 825 durability for the full set.

Repair it at an anvil with a duralumin ingot.