Recycling

Armor

diamond, iron, leather, golden, chainmail and netherite (boots, leggings, chestplate and helmet)

Horse Armor

diamond, golden, iron and leather

Tools

diamond, golden, iron and netherite (sword, shovel, pickaxe, hoe and axe)

Netherite

netherite armor or tool -> netherite scrap

Chainmail

chainmail is like iron

Wolf Armor (1.3.0+)

Turtle Helmet (1.5.0+)