Steel mill

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Cost
Cost	$150, 250x coal, 500x iron
Total Cost	$1,200
Production
Inputs	4x coal, 1x iron
Outputs	1x steel
Production interval	35 seconds
Production/Min	1.714x steel
Profit
Profit/Min	$13.71
Profit/Hour	$822.86
Return On Investment	0.744%
Aliases
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.

1 Iron 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.
Excess material can be sold or stockpiled in case of bad regional modifiers.

Ratio

Minimum: 1 Iron mine : 1 Coal mine : 1 Steel mill

Meta Ratio

4 Iron mine : 7 Steel mill
1 Coal mine : 7 Steel mill

Disclaimer: The ratio above is for calculation only. The real value may vary.

Related facilities

As construction material

• Oil refinery
• Bauxite mine
• Rubber factory
• Gas station
• Furniture factory
• Aluminum factory
• LED factory
• Polyester factory
• Silicon mine
• Bicycle factory
• Gold mine
• 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

As input

• Bicycle factory
• Gasoline engine factory
• Car factory