Blast Furnace — Steel bar
SmithingThe Blast Furnace halves coal to 1 per steel bar. 17.5 XP/bar. Up to ~4,650–5,450 bars/hr with a coal bag.
Smithing XP / hr87,500
Profit / hr1.70m
Profit / XP+19.37
Materials / hr
 Iron ore | 5,000 | 72 | −360.0k |
 Coal | 5,000 | 149 | −745.0k |
Produces / hr (expected)
5,0002,800,000
Value / hr: 2,800,000
Profit and XP shown per hour at the rate above (edit it to match your play). Prices are live from the Grand Exchange.