ArcelorMittal Dunkerque steel plant — France

ArcelorMittal Dunkerque steel plant is a steel plant in France. Its listed capacity is 6,750,000 t of steel. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels. It is operated by ArcelorMittal Atlantique et Lorraine SAS. By capacity it ranks #1 among 10 steel plants in France. It emits about 8,859,539 t CO₂e a year from Climate TRACE. That is 17% of the CO₂e from the 117 facilities in France that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 41% above the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1566816.

In context: how this facility compares

At 6,750,000 t of steel, ArcelorMittal Dunkerque steel plant is well above the median steel plant in France (825,000 t of steel). Subsector: iron-and-steel. As steel plant, it requires high process heat (typically 800–1500°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 8,859,539 t CO₂e a year looks like

This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Capacity vs largest steel plants in France

Listed capacity (t of steel), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by ArcelorMittal Atlantique et Lorraine SAS.

Local climate

ArcelorMittal Dunkerque steel plant sits in a temperate oceanic climate zone (Köppen Cfb), at 51.0°N in the northern hemisphere.

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1397 W/m² to ambient — roughly 1.07× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #1 largest of 10 steel plants in France by listed capacity (Climate TRACE).

Nearby industrial sites

• FERROGLOBE MANGANÈSE FRANCE SAS · Metals Plant · 197,000 t CO₂
• FERROGLOBE MANGANÈSE FRANCE · Metals Plant · 202,000 t CO₂
• Versalis France SAS, Dunkerque · Petrochemical · 558,244 t CO₂
• ALUMINIUM DUNKERQUE SAS · Metals Plant · 497,000 t CO₂
• LIBERTY ALUMINIUM DUNKERQUE · Metals Plant · 484,000 t CO₂
• ALVANCE ALUMINIUM DUNKERQUE SAS · Metals Plant · 482,000 t CO₂

Location

Coordinates 51.03792, 2.29613. View on OpenStreetMap.

Frequently asked questions