Goatsteel - a new tier of weapons & armour

Currently, the smithing table only has 1 use - converting diamond gear into netherite. The goat horn is a new item that also currently has only 1 use (making a horn sound). An additional use that could be added for both these items is the ability to combine iron gear with goat horns in a smithing table, to make goatsteel gear, a stronger version of iron.

This would add some interesting optional progression, and would tie in well with the Caves & Cliffs update, as steel is a metal, and goatsteel would give an extra reason to seek out mountains and, in turn, goats.

Goatsteel gear would be a tier between iron and diamond. Its durability could be ~500, and the armour could have the same protection value as iron armour, but with +1 armour toughness on each piece. The pickaxe could have the same 'power' as diamond (i.e being able to mine obsidian, netherite), but with the same speed as iron. Similarly, the sword could have the same attack power as diamond, but be slightly slower (perhaps 1.5)

I think this new tier of gear would fit right in as a unique set that also gives a new use to items that previously weren't too useful.