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Difference between revisions of "Steel"

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(rv to previous calculations (see talk))
(Added a helpful section for steel production automation)
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:*9 [[lignite]] + 4 x [[iron]] [[ore]] + 16 x [[flux]]stone = 16 bars of steel
 
:*9 [[lignite]] + 4 x [[iron]] [[ore]] + 16 x [[flux]]stone = 16 bars of steel
 
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==Automated Steel Production==
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You can fully automate the production of steel via [[Work orders]], the arrangement of these orders would be:
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:*Make 9 [[coke]] from [[bituminous coal]] (or 18 [[lignite]] or make 72 [[charcoal]]), then add the {{K|c}}ondition to restart if completed, checked daily.
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:*Smelt 8 [[magnetite]] (or [[hematite]]) [[ores]], then add the {{K|c}}ondition to restart if completed, checked daily. then set the {{K|o}}rder condition to "Make 9 [[coke]] from [[bituminous coal]]"
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:*Make 16 pig iron bars, then add the {{K|c}}ondition to restart if completed, checked daily. then set the {{K|o}}rder condition to "Smelt 8 magnetite ores"
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:*Make 16 steel bars, then  add the {{K|c}}ondition to restart if completed, checked daily. then set the {{K|o}}rder condition to "Make 16 pig iron bars"
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:*Wait until the "Smelt 8 magnetite" order activates (once the coke or charcoal is done) to set it's{{K|o}}rder to "Make 16 steel bars"
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This automated process would produce 32 steel bars every 4 days (assuming you have a constant flow of ore, coke producing stone, Flux stone and labourers).
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You can also make multiple work order sets to increase production as much as necessary
  
 
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Revision as of 02:37, 17 September 2019

xTATTEREDx  · +FINE+  · *SUPERIOR*  · ≡EXCEPTIONAL≡  · ☼MASTERWORK☼
Steel
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Uses
Graphic

No graphic.

Recipe
Properties
Fire-safe Magma-safe

Wikipedia article

v50.14 · v0.47.05
This article is about the current version of DF.
Note that some content may still need to be updated.

Steel is an alloy of iron and carbon (refined coal), made at a smelter. It is the best common metal for smithing most weapons and armor. Steel also has the third highest value of all metals, tied with that of gold.

Steel can be created at a smelter by a dwarf with the furnace operator labor activated.

Sedimentary Layers

To smelt steel, you will need iron bars, flux stone, and fuel. Flux is used to remove impurities, including carbon, during the smelting process, while fuel (charcoal or coke) removes oxygen and puts back in a small amount of carbon. The end result is steel: iron with just the right amount of carbon in it. The three ores of iron (hematite, magnetite, and limonite) can only be found in sedimentary layers, with the exception of hematite, which can occasionally be found in igneous extrusive layers. Furthermore, four of the five flux stones (calcite, chalk, dolomite, and limestone) are found only in sedimentary layers, as well as both coal ores (bituminous coal and lignite).

If you have no sedimentary layers at your fortress site, your only hope to make steel is with:

If you embark in a forest biome, you can produce thousands of units of wood from the surface trees alone, without even tapping into the caverns. Charcoal requires more labor per unit than coke, but is often easier to acquire.

Note that bituminous coal and lignite, like most stones, costs only 3☼ at embark or from caravans. With a cunning enough starting build, it is possible to embark with enough coal boulders to produce several hundred units of coke. This is only possible if your parent civilization has access to coal; otherwise, it will not be available at all.

Recipe

Steel production is fairly complex compared to the creation of other alloys. Important note: in steelmaking, coke or charcoal is also used as an ingredient, apart from its use as fuel. A conventional (non-magma) smelter will require an additional unit of fuel in each reaction.

The first step is to create pig iron:

  • 1 bar of iron
  • 1 flux stone
  • 1 unit of fuel (as a source of carbon)
  • 1 unit of fuel, or magma (to heat the forge)
Produces:
  • 1 bar of pig iron
A steel short sword.

The second step combines the pig iron with plain iron to produce steel:

  • 1 bar of iron
  • 1 bar of pig iron
  • 1 flux stone
  • 1 unit of fuel (as a source of carbon)
  • 1 unit of fuel, or magma (to heat the forge)
Produces:
  • 2 bars of steel

The overall reaction consumes 2 bars of iron, 2 units of flux, and 2 units of fuel as ingredients (plus an extra 2 fuel at a conventional smelter for heating). This produces 2 bars of steel.

Remember that smelting iron ore also requires 1 unit of fuel at a conventional smelter, producing 4 bars of iron, which translates to half a unit of additional fuel used in the recipe above (although you will need a full unit up front.)

To go from raw materials to finished products (assuming 1 bar per crafted item) at a conventional forge, a ratio of 8 iron bearing ore: 32 flux stone: 13 bituminous coal (or 26 lignite or 104 logs) will have no leftover raw material and will yield 32 single-bar steel items. This is assuming, of course, that your dwarves can time travel and use the last remaining piece of coke to fire the first bituminous coal (or lignite).

SteelChart.png



Automated Steel Production

You can fully automate the production of steel via Work orders, the arrangement of these orders would be:

  • Make 9 coke from bituminous coal (or 18 lignite or make 72 charcoal), then add the condition to restart if completed, checked daily.
  • Smelt 8 magnetite (or hematite) ores, then add the condition to restart if completed, checked daily. then set the order condition to "Make 9 coke from bituminous coal"
  • Make 16 pig iron bars, then add the condition to restart if completed, checked daily. then set the order condition to "Smelt 8 magnetite ores"
  • Make 16 steel bars, then add the condition to restart if completed, checked daily. then set the order condition to "Make 16 pig iron bars"
  • Wait until the "Smelt 8 magnetite" order activates (once the coke or charcoal is done) to set it'sorder to "Make 16 steel bars"

This automated process would produce 32 steel bars every 4 days (assuming you have a constant flow of ore, coke producing stone, Flux stone and labourers). You can also make multiple work order sets to increase production as much as necessary

"Steel" in other Languages Books-aj.svg aj ashton 01.svg
Dwarven: deler
Elven: inire
Goblin: zodsto
Human: kadest
V · T · E
Base
Aluminum • Bismuth • Copper • Gold • Iron • Lead • Nickel • Platinum • Silver • Tin • Zinc
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