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{{Facility information table|class="wikitable" style="float:right;"|'''Cost''' |$150, 250x [[coal]], 500x [[iron]]| $1,200|-|'''Inputs''' || 4x [[coal]], 1x [[iron]]|-1x [[steel]]|'''Outputs''' 35 seconds|| 1x 1.714x [[steel]]|-$13.71|'''Production interval''' $822.86|0.744%| 35 seconds|steel mill, steelmill, steel furnace, steelfurnace}}

The steel mill is a facility that produces 1x [[steel]] every 35 seconds. [[Steel]] is used mainly for Construction Material rather than production input. The List of Buildings that use [[steel]] can be seen below.

You need 1Iron mine and 1 Coal mine can passively provide enough materials to support (1-2) steel mills. Recommended build ratio is 4 Iron mine and 1 Coal mine for every 7 Steel mill. For every 50x production it'll have 1 excessive [[Iron]] and for every 5x production, it will have 3 excessive [[Coal]].</7th br>Excess material can be sold or stockpiled in case of a bad regional modifiers. == [[Help:IdleCorp_Profit#Ratio|Ratio]] ==[[Help:IdleCorp_Profit#Minimum|Minimum]]: 1 [[Iron mine]] : 1 [[Coal mine]] : 1 [[Steel mill]]==== [[Help:IdleCorp_Profit#Meta_Ratio|Meta Ratio]] ====4 [[Iron mine]] and 2: 7 [[Steel mill]]</3 of an br>1 [[Coal mine]] : 7 [[Steel mill]] '''Disclaimer: The ratio above is for calculation only. The real value may vary.''' == Related facilities =='''As construction material'''<div style="column-count:4;-moz-column-count:4;-webkit-column-count:4">*[[Oil refinery]]*[[Bauxite mine]]*[[Rubber factory]]*[[Gas station]]*[[Furniture factory]]*[[Aluminum factory]]*[[LED factory]]*[[Polyester factory]]*[[Silicon mine]]*[[Bicycle factory]]*[[Iron Gold mine]] to maintain this *[[Plastic factory]]*[[CCD factory]]*[[Glass factory]]*[[CPU factory]]*[[Clothing factory]]*[[Cell phone factory]]*[[Coal power plant]]*[[Laptop factory]]*[[Research chemical factory]]*[[Solar power plant]]*[[Digital camera factory]]*[[Television factory]]*[[Gasoline engine factory]]*[[Car factory]]*[[Logistics center]]*[[Retail store]]*[[Research facility]]*[[Customer support center]]*[[HQ]]</div> '''As input'''*[[Bicycle factory]]*[[Gasoline engine factory]]*[[Car factory.]]