Smithing steel bars at Blast Furnace

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Smithing steel bars at the Blast Furnace
RequirementsBlast Furnace.png
30 SmithingSmithing icon.png (60+ recommended)
High AgilityAgility icon.png recommended
Started The Giant Dwarf
ProfitExperience gained
506,292.580,500 SmithingSmithing icon.png
Inputs (1,214,107.5)Outputs (1,720,400)
72,000 × Coins 100.png Coins (72,000) Furnace fees4,600 × Iron ore.png Iron ore (372,600)4,600 × Coal.png Coal (731,400)7.5 × Stamina potion(4).png Stamina potion(4) (38,107.5)4,600 × Steel bar.png Steel bar (1,720,400)
Going to Keldagrim for the first time.

Although level 30 Smithing is required to smith steel bars, level 60 is strongly recommended so that you don't have to pay an entrance fee to the Blast Furnace. It provides a great opportunity for players to reap great profits by producing a large volume of steel bars (worth 374 each), which are used by low-to-mid level smiths.

Depending on your level of activity, you can produce between 3,000 and 4,600 steel bars in an hour. That means the profit margin falls between 291,892.5 and 506,292.5 hourly.

This money making method requires you are on an official Blast Furnace world. Bring with you coal, iron ore, sufficient stamina potions, and at least 72,000 coins. Deposit the coins into the coffer to be allowed to use the furnace by the dwarves operating it. The coffer will remove 1,200 coins every minute automatically. Start by placing iron ore on the conveyor belt first, then emptying your coal bag of coal and depositing that right after. Then retrieve your bars from the bar dispenser by clicking on it (if ice gloves are equipped) or dousing it with a bucket of water and then collecting the bars. Repeat this process until you either run out of ore, or the coffer is empty.

The Coal bag allows you to bring 27 extra pieces of coal with you each trip from the bank to the furnace. Without using one, you should expect to earn a little more than one-half of the output totaling up to 209,080.5 hourly and up to 41,685 Smithing experience.

After traveling to Keldagrim once, the city and the Blast Furnace can be easily accessed by using the travel option on the trapdoor on the inside west-wall of the Grand Exchange.

Some key points for those who might be new to using the blast furnace, which can be found on the Blast Furnace page:

  • The furnace has an interior buffer of 254 ore.
  • The output has only a buffer of 28 bars of each type.
  • Iron ore will immediately turn into iron bars if coal is not in the furnace.
  • If the output already has 28 steel bars and you put more iron onto the conveyor, this iron will be turned immediately into iron bars - even if there is adequate coal in the furnace. If more is placed, the iron ore will just sit in the furnace until room is made.
  • Placing iron ore, then emptying the coal bag and placing the coal ore onto the conveyor is often not fast enough, and will result in iron bars being made instead of steel bars. To mitigate this, initially place 26-28 coal into the blast furnace before starting your runs of iron+coal inventories. That way, there is always a buffer of coal in the furnace, meaning no iron bars will ever be made by accident.
  • If you are below 60 Smithing, you must pay the Foreman 2500gp every 10 minutes manually on top of the 72000 gp/h drained from the coffer. The coffer will continue to drain even if you do not currently have the permission of the foreman.

Due to constantly changing prices on the Grand Exchange, some information in this article may or may not be current.
It is strongly recommended to check the live prices on the Grand Exchange before making large investments in any method.

All prices on this page are cached, meaning it is possible that they appear out of date.
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