Created with Mining:

Skill	Recipe	Components	Slot	Source
125	Iron Bar	1x Iron Ore		Trainer

Used by: Alchemy:

Skill	Recipe	Components	Slot	Source
225	Philosopher's Stone	x4 x4 x4 4x Iron Bar 1x Black Vitriol 4x Purple Lotus 4x Firebloom		Recipe, Vendor
225	Gold Bar	1x Iron Bar		Recipe, Vendor

Used by: Blacksmithing:

Skill	Recipe	Components	Slot	Source
120	Green Iron Boots	x4 x2 x2 4x Iron Bar 2x Lesser Moonstone 2x Coarse Grinding Stone 1x Green Dye	Feet	Recipe, Drop
120	Mighty Iron Hammer	x6 x2 x2 x2 x2 6x Iron Bar 2x Strong Flux 1x Elixir of Ogre Strength 2x Lesser Moonstone 2x Coarse Grinding Stone 2x Medium Leather	One-Hand	Recipe, Drop
125	Green Iron Gauntlets	x4 x2 x2 4x Iron Bar 2x Small Lustrous Pearl 2x Coarse Grinding Stone 1x Green Dye	Hands	Recipe, Drop
125	Iron Shield Spike	x6 x4 6x Iron Bar 4x Coarse Grinding Stone		Recipe, Drop
130	Iron Fists	x6 x2 x2 x2 6x Iron Bar 2x Strong Flux 1x Heavy Grinding Stone 2x Silver Bar 2x Heavy Leather	One-Hand	Recipe
130	Solid Iron Maul	x8 x2 x4 x2 8x Iron Bar 2x Strong Flux 1x Heavy Grinding Stone 4x Silver Bar 2x Heavy Leather	Two-Hand	Recipe, Vendor
135	Barbaric Iron Breastplate	x20 x4 20x Iron Bar 4x Heavy Grinding Stone	Chest	Recipe
135	Barbaric Iron Shoulders	x8 x4 x2 x2 8x Iron Bar 4x Sharp Claw 2x Shadowgem 2x Heavy Grinding Stone	Shoulder	Recipe
135	Green Iron Shoulders	x7 7x Iron Bar 1x Heavy Grinding Stone 1x Green Dye	Shoulder	Recipe, Drop
135	Hardened Iron Shortsword	x6 x2 x2 x3 6x Iron Bar 2x Strong Flux 1x Heavy Grinding Stone 2x Lesser Moonstone 3x Heavy Leather	One-Hand	Recipe, Vendor
140	Iron Counterweight	x4 x2 4x Iron Bar 2x Coarse Grinding Stone 1x Lesser Moonstone		Recipe, Drop
145	Golden Iron Destroyer	x10 x4 x2 x2 x2 x2 10x Iron Bar 4x Gold Bar 2x Lesser Moonstone 2x Strong Flux 2x Heavy Leather 2x Heavy Grinding Stone	Two-Hand	Recipe, Drop
145	Golden Scale Leggings	x10 x2 10x Iron Bar 2x Gold Bar 1x Heavy Grinding Stone	Legs	Recipe, Drop
150	Barbaric Iron Helm	x10 x2 x2 10x Iron Bar 2x Large Fang 2x Sharp Claw	Head	Recipe
150	Iron Buckle	1x Iron Bar		Trainer
150	Jade Serpentblade	x8 x2 x2 x2 x3 8x Iron Bar 2x Strong Flux 2x Heavy Grinding Stone 2x Jade 3x Heavy Leather	One-Hand	Recipe, Drop
150	Justicar's Belt	x6 x2 x2 6x Iron Bar 2x Heavy Grinding Stone 2x Globe of Water	Waist	Recipe
150	Officer's Belt	x6 x2 x2 6x Iron Bar 2x Heavy Grinding Stone 2x Jade	Waist	Recipe
150	Prefect's Belt	x6 x2 x2 6x Iron Bar 2x Heavy Grinding Stone 2x Golden Pearl	Waist	Recipe
150	Sentinel's Belt	x6 x2 x2 6x Iron Bar 2x Heavy Grinding Stone 2x Purple Lotus	Waist	Recipe
150	Warder's Belt	x6 x2 x2 6x Iron Bar 2x Heavy Grinding Stone 2x Black Pearl	Waist	Recipe
155	Barbaric Iron Boots	x12 x4 x4 x2 12x Iron Bar 4x Large Fang 4x Tigerseye 2x Heavy Grinding Stone	Feet	Recipe
155	Green Iron Leggings	x8 8x Iron Bar 1x Heavy Grinding Stone 1x Green Dye	Legs	Trainer
160	Barbaric Iron Gloves	x14 x3 x2 14x Iron Bar 3x Heavy Grinding Stone 2x Large Fang	Hands	Recipe
160	Massive Iron Axe	x14 x2 x2 x4 x2 14x Iron Bar 2x Strong Flux 2x Heavy Grinding Stone 4x Gold Bar 2x Heavy Leather	Two-Hand	Recipe, Vendor
165	Green Iron Bracers	x6 6x Iron Bar 1x Green Dye	Wrist	Trainer
165	Iron Morningstar	x14 x2 x2 x4 x2 14x Iron Bar 2x Strong Flux 2x Heavy Grinding Stone 4x Citrine 2x Heavy Leather	Main Hand	Recipe
170	Golden Scale Leggings	x10 x2 10x Iron Bar 2x Gold Bar 1x Heavy Grinding Stone		Recipe
170	Green Iron Helm	x12 12x Iron Bar 1x Citrine 1x Green Dye	Head	Trainer
175	Azure Skyforged Helm	x18 x5 18x Iron Bar 5x Heavy Grinding Stone 1x Aquamarine	Head	Recipe
175	Azure Skyforged Pauldrons	x14 x3 14x Iron Bar 3x Heavy Grinding Stone 1x Aquamarine	Shoulder	Recipe
175	Cloudy Skyforged Helm	x18 x5 18x Iron Bar 5x Heavy Grinding Stone 1x Small Lustrous Pearl	Head	Recipe
175	Cloudy Skyforged Pauldrons	x14 x3 14x Iron Bar 3x Heavy Grinding Stone 1x Small Lustrous Pearl	Shoulder	Recipe
180	Green Iron Hauberk	x20 x4 x2 x2 20x Iron Bar 4x Heavy Grinding Stone 2x Jade 2x Moss Agate 1x Green Leather Armor	Chest	Trainer

Used by: Engineering:

Skill	Recipe	Components	Slot	Source
125	9-60 Battery Pack	1x Cerulean Dye 1x Pyrite 1x Iron Bar		Recipe
160	Iron Strut	x2 2x Iron Bar		Trainer
165	Goblin Jumper Cables	x6 x2 x2 x2 x2 6x Iron Bar 2x Whirring Bronze Gizmo 2x Flask of Oil 2x Silk Cloth 2x Shadowgem 1x Fused Wiring	Trinket	Recipe, Vendor
170	Gyrochronatom	1x Iron Bar 1x Gold Power Core		Trainer
175	Iron Grenade	1x Iron Bar 1x Heavy Blasting Powder 1x Silk Cloth		Trainer
175	Serrated Strap	x2 2x Copper Modulator 1x Bronze Tube 1x Iron Bar		Recipe
190	Big Iron Bomb	x3 x3 3x Iron Bar 3x Heavy Blasting Powder 1x Silver Contact		Trainer
195	Goblin Land Mine	x3 x2 3x Heavy Blasting Powder 2x Iron Bar 1x Gyrochronatom		Recipe, Drop
200	EZ-Thro Grenade	1x Iron Bar 1x Heavy Blasting Powder 1x Silk Cloth 1x EZ-Thro Fireproof Fuse		Recipe
215	SAF-T Bomb	x3 x3 3x Iron Bar 3x Heavy Blasting Powder 1x Silver Contact 1x SAF-T Casing		Recipe

Used by: Mining:

Skill	Recipe	Components	Slot	Source
165	Steel Bar	1x Iron Bar 1x Coal		Trainer

Used by: Skinning:

Skill	Recipe	Components	Slot	Source
300	Trapper's Workbench	x2 x4 2x Simple Wood 4x Heavy Leather 1x Iron Bar		Recipe

Objective of

Level	Name	Start	Rewards
60	The Alliance Needs Iron Bars! Horde and Alliance Ahn'Qiraj War	Corporal Carnes <Iron Bar Collector> Ironforge
45	Smelt On, Smelt Off Horde and Alliance Blacksmithing	Galvan the Ancient <Artisan Blacksmith of the Mithril Order> Stranglethorn Vale	3900 XP
30	Brutal Armor Horde and Alliance Warrior	Thun'grim Firegaze The Barrens