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Steel & Alloy Metals

The catalogue

Steel & Alloy Metals

Iron and the dozen elements that turn it into thousands of different steels.

Iron and slag tapping from a blast furnace tap hole — Випус… · Blast furnace chip worker · CC BY-SA 3.0 · Wikimedia Commons

13 materials shown. Figures are from USGS Mineral Commodity Summaries 2026 · as each source defines it for each commodity · source ↗

Scroll the table sideways for the remaining columns.

Material World production 2025 World reserves Leading producer U.S. imported
Iron OreRust-coloured rock that is roughly one-third to two-thirds iron, and the single largest tonnage…
2,600,000thousand metric tons · Mine production: Usable ore, rounded 87,000 — —
Iron & SteelIron with a little carbon in it, and the most-produced manufactured material on the planet.
360.0million metric tons · world iron slag production was estimated to be between 330 million and 390 million tons, — — —
Chromium criticalThe element that makes stainless steel stainless — at about eleven percent chromium, steel…
51,000thousand metric tons · Mine production 540,000 South Africa45% of world production 79%
MolybdenumA silvery metal added to steel so it keeps its strength at high temperature and under pressure.
260,000metric tons · Mine production 17,000 China37% of world production† —
Vanadium criticalA metal that makes rebar dramatically stronger in tiny doses, and that can also store…
110,000metric tons · Mine production 21,000 China75% of world production 41%
Zinc criticalThe metal that steel is dipped in so it does not rust — a sacrificial coating that corrodes…
13,000thousand metric tons · Mine production 240,000 China32% of world production —
Tin criticalA soft metal with a low melting point, which is why nearly every electrical joint in every…
290,000metric tons · Mine production 6,000,000 China24% of world production —
Lead criticalA soft, dense, blue-grey metal that blocks radiation and stores charge cheaply — and that is…
4,500thousand metric tons · Mine production 95,000 China42% of world production —
Magnesium Metal criticalThe lightest structural metal, about a third lighter than aluminium, and the ingredient that…
1,100thousand metric tons · Smelter production — China86% of world production† 75%
CadmiumA toxic soft metal recovered from zinc refining, now used mainly in thin-film solar panels…
23,000metric tons · Refinery production — China41% of world production† 25%
SeleniumAn element recovered from copper refinery slimes, used in glass, in animal feed and in…
3,800metric tons · Refinery production — China53% of world production† 50%
MercuryThe only metal that is liquid at room temperature, and one of the most tightly regulated…
210.0metric tons · Mine production — China95% of world production† —
Iron & Steel ScrapOld steel collected to be melted into new steel — the largest recycling stream on the planet by…
not published — — —

† Worked out from the USGS production table: the leading country’s output divided by the world total. Where the USGS publishes the share itself, that figure is shown instead.

Photographs on this page · 14
  1. Iron and slag tapping from a blast furnace tap hole — Випуск продуктів … · Blast furnace chip worker · CC BY-SA 3.0
  2. Hematite (iron ore) (weathered zone in the Biwabik Iron-Formation, Whit… · James St. John · CC BY 2.0
  3. Blast furnace at Carnegie-Illinois Steel Corporation mill in Etna, Penn… · Alfred T. Palmer · Public domain
  4. Metal poles (surface is chromium-plated) - HDR.jpg · Laitche · CC BY-SA 4.0
  5. Molybdenite quebec2.jpg · Didier Descouens · CC BY 3.0
  6. World- Vanadium Production,*1946 - DPLA - 3e24602f809408ce766ef8a40e074… · Central Intelligence Agency · Public domain
  7. Sphalerite - Creede, Mineral County, Colorado, USA.jpg · Ivar Leidus · CC BY-SA 4.0
  8. Cassiterite (GeoDIL number - 37).jpg · Shannon Heinle · CC0
  9. Galena - Huallanca, Bologesi, Ancash, Peru.jpg · Ivar Leidus · CC BY-SA 4.0
  10. Dowmetal Magnesium- The Metal of Motion - DPLA - 6cfddacda671bc92edb70f… · Dow Chemical Company · Public domain
  11. Cadmium (Element - 48) 3.jpg · James St. John · CC BY 2.0
  12. Selenium (Element - 34).jpg · James St. John · CC BY 2.0
  13. Mercury, cinnabar and calomel (GeoDIL number - 919).jpg · Darla Sondrol · CC0
  14. Scrap metal yard.jpg · Digitura · CC0

Every photograph is from Wikimedia Commons and is used under the licence shown.

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