CSN Volta Redonda steel plant

CSN Volta Redonda steel plant is a steel plant in Brazil with a reported capacity of 6,251,000 t of steel. It produces crude steel from iron ore (blast furnace) or scrap (electric arc furnace). It is operated by Companhia Siderúrgica Nacional SA. By capacity it ranks #2 of 22 steel plants tracked in Brazil. It emits about 7,646,497 tonnes of CO₂e per year (Climate TRACE) — roughly the tailpipe emissions of 1,782,400 cars. Its CO₂ per unit of capacity is about 126% above the median steel plant.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-32440381.

En contexto: cómo se compara esta instalación

Con 6,251,000 t of steel, CSN Volta Redonda steel plant está muy por encima de la mediana de steel plant en Brazil (1,000,000 t of steel). Su CO₂ por unidad de capacidad es aproximadamente 117% por encima de la mediana de steel plant. Subsector: iron-and-steel. Como steel plant, requiere calor de proceso intenso (típicamente 800–1500°C) para sus operaciones industriales centrales — calor que debe ser suministrado por calderas, hornos o combustión directa, y las pérdidas a través de recipientes y tuberías sin aislar representan combustible desperdiciado. El aislamiento modular desmontable puede reducir esas pérdidas en un 80–96%, enfriando superficies a ≤45°C, con amortización a menudo inferior a 2 años. Las plantas de acero queman carbón en altos hornos o utilizan arcos eléctricos para fundir chatarra; en ambos casos el metal fundido debe mantenerse por encima de 1.500°C y transferirse a través de tuberías y recipientes calientes extensos.

Comparación de capacidad e intensidad de CO₂ calculada a partir de datos de instalaciones industriales de Climate TRACE; papel del sector basado en referencia de ingeniería.

What 7,646,497 t CO₂e a year looks like

This facility's reported annual CO₂e in the 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 Brazil

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

Operator

Operated by Companhia Siderúrgica Nacional SA. All facilities by this operator →

Local climate

CSN Volta Redonda steel plant sits in a humid subtropical climate zone (Köppen Cfa), at 22.5°S in the southern hemisphere.

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

How it compares & nearby sites

The #2 largest of 22 steel plants in Brazil by reported capacity.

Nearby industrial sites

• New Magic Confeccoes Ltda · Textiles · 302 t CO₂
• ArcelorMittal Barra Mansa steel plant · Steel Plant · 445,433 t CO₂
• Spice Industria Quimica Ltda · Textiles · 302 t CO₂
• ArcelorMittal Resende steel plant · Steel Plant · 342,765 t CO₂
• Yrio Confeccoes Ltda · Textiles · 302 t CO₂
• Gerdau Cosigua Santa Cruz steel plant · Steel Plant · 236,392 t CO₂

Location

Coordinates -22.51217, -44.11244. View on OpenStreetMap.

Hot industrial equipment? Cut the heat loss.

Kilns, furnaces, boilers, heat exchangers, valves and steam lines on sites like this lose energy continuously. Inzonex makes patented removable modular insulation for hot industrial equipment:

• Up to 96% less heat loss from insulated surfaces
• Surface temperature down to ≤45°C for worker safety
• 6× faster maintenance access — removable and refittable
• Typical payback up to 2 years

See Inzonex process-equipment insulation →

Frequently asked questions