What are subway trains made of?
Subway trains take stainless steel, aluminum, steel, paint and electric motor directly. Trace them back and you pass 47 made things on the way to 23 raw materials.
How subway trains are made See it on the map
What goes straight in
From the ground: 23 raw materials
- Crude oil through aluminum
- Coal through aluminum
- Water through paint
- Chromite through stainless steel, chromium
- Limestone through stainless steel, chromium
- Air through steel, argon
- Nickel ore through stainless steel, nickel
- Bauxite through aluminum, alumina
- Iron ore through steel, manganese
- Dolomite through steel, magnesium
- Manganese ore through steel, manganese
- Natural gas through steel, manganese
- Titanium ore through paint, titanium dioxide
- Sulfur through paint, pigment
- Rock salt through aluminum, alumina, caustic soda
- Trona through stainless steel, chromium, soda ash
- Quartz through steel, magnesium, metallurgical silicon
- Timber through steel, magnesium, metallurgical silicon
- Zinc ore through electric motor, sheet steel, zinc
- Copper ore through electric motor, copper wire, copper
- Corn through stainless steel, chromium, soda ash, carbon dioxide
- Sugarcane through stainless steel, chromium, soda ash, carbon dioxide, baker's yeast, molasses
- Sugar beet through stainless steel, chromium, soda ash, carbon dioxide, baker's yeast, molasses
Made along the way: 42 things
Metals 13
Steel scrapChromiumNickelAluminaPig ironMagnesiumManganeseSheet steelCopper wireCokeZincCopperSteel wire
Metal goods 1
Chemicals and fuels 23
Oxygen gasArgonPetroleum cokeQuicklimeTitanium dioxidePigmentPropaneSoda ashSulfuric acidCaustic sodaChlorineCarbon blackPropyleneAmmoniaMethanolPhenolAcetoneCarbon dioxideCharcoalNaphthaBenzeneHydrogenToluene