What is railroad rail made of?
Railroad rail takes steel directly. Trace them back and you pass 13 made things on the way to 12 raw materials.
How railroad rail is made See it on the map
What goes straight in
From the ground: 12 raw materials
- Iron ore through steel, manganese
- Limestone through steel, quicklime
- Air through steel, argon
- Dolomite through steel, magnesium
- Water through steel, quicklime
- Manganese ore through steel, manganese
- Natural gas through steel, manganese
- Coal through steel, manganese, coke
- Quartz through steel, magnesium, metallurgical silicon
- Timber through steel, magnesium, metallurgical silicon
- Crude oil through steel, steel scrap, propane
- Sulfur through steel, manganese, sulfuric acid