Question: Can you use coal in a forge?

Bituminous is the coal-of-choice for the blacksmith. It is a soft, mid-grade, black coal. Mined from deeper mines than lignite, it burns much more cleanly. When burning coal in the forge, we keep a “stock pile” of wet coal on the sides of the fire.

What is the best fuel for a forge?


How long does coal last in a forge?

It really depends on your forge setup. My last forge was pretty small and one 50# bag would last me over 2 months, just forging on the weekends.

How hot can a charcoal forge get?

According to “Marks’ Standard Handbook for Mechanical Engineers”, 10th, coal gas burns at about 3,590°F (1,977°C) under 100% air conditions. More or less air will decrease the temperature. This means that the maximum temperature of a coal fire in a forge is about 3,500°F (1,927°C).

How does a coal forge work?

In a typical coal forge, a firepot will be centered in a flat hearth. The tuyere will enter the firepot at the bottom. In operation, the hot core of the fire will be a ball of burning coke in and above the firepot. The heart of the fire will be surrounded by a layer of hot but not burning coke.

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Can you forge steel with a wood fire?

With a regular wood fire you won’t be able to get the steel hot enough, probably no more than 900 degrees. you can use the wood to make charcaol if lack of coal is the problem.

Is a coal or propane forge better?

Propane is very easily obtained and has the advantage of being portable, cleaner, and hotter than coal and charcoal. … Propane forges don’t smoke like coal and charcoal forges do, but can have a whooshing sound. They certainly go over better with the neighbors if you live in a less rural area.

Does Coke burn hotter than coal?

Coal is a shiny, black fossil fuel that contains impurities, emits smoke when burned, and produces less heat than coke. Coke is a dull, black byproduct of coal that burns hotter and cleaner. … However, blacksmiths still rely on coke as an efficient source of fuel for the forge.

How much coal does a forge use?

How much coal do you need? Bit of a tricky question! This of course depends on how much forging you will be doing. If you are doing an afternoon of forging then 20 pounds of hardwood lump charcoal should be plenty and 5 pounds of coal should do.

What burns hotter charcoal or wood?

Charcoal has an energy value of around 29 MJ/kg, in other words charcoal burns hotter than wood, but when not insulated or not receiving sufficient air supply (including secondary air), the absence of flames or fast flowing CO2 gases will result in less efficient cooking due to a lower heat transfer efficiency (HTE).

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What is the hottest Forge?

The hot forging manufacturing process is performed at extreme high temperature (up to 1150 °C for steel, 360 to 520 °C for al-alloys, 700 to 800 °C for cu-alloys).

What burns hotter coal or charcoal?

Lump charcoal burns hotter than briquettes. A briquette fire can get up to 800 to 100 degrees, while lump can get up to 1400° F.

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What coal is best for blacksmithing?


How big should a coal forge be?

You’ll probably want 1 to 2 inches of refractry material lining the fire pit. Charcoal also uses less air. As to size, if you get a fire roughly 8 inches in diameter that will forge and heat treat a 10 to 12 in blade.

Coal mine