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Ternium Guerrero San Nicolás de los Garza steel plant

Steel Plant in Mexico. Approximate location 25.72043, -100.29882.

Steel PlantMexicoCO₂ reported

Ternium Guerrero San Nicolás de los Garza steel plant is a steel plant in Mexico with a reported capacity of 2,400,000 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 Ternium México SA de CV. By capacity it ranks #3 among 10 steel plants in Mexico. It emits about 1,076,601 t CO₂e a year from Climate TRACE, roughly comparable to the annual emissions of 251k passenger cars. Its CO₂ per unit of capacity is 52% below the national median for this sector.

2,400,000t of steel
1,076,601t CO₂e / yr (Climate TRACE)
#9CO₂ rank in Mexico
0.45t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1566977.

Data status

Known source data

FacilityTernium Guerrero San Nicolás de los Garza steel plant Climate TRACE
CountryMexico Climate TRACE
Coordinates25.72043, -100.29882 Climate TRACE
Sector / subsectoriron-and-steel Climate TRACE
Reported capacity2,400,000 t of steel Climate TRACE
Owner / operatorTernium México SA de CV Climate TRACE
GEM steel parentTernium SA [100.0%] Global Energy Monitor
Steel process routeintegrated DRI Global Energy Monitor
Steel asset statusoperating Global Energy Monitor
Steel equipmentDRI, EAF Global Energy Monitor
Steel capacity2,400 ktpa Global Energy Monitor
Modelled CO₂e1,076,601 t/yr Climate TRACE

Calculated from the dataset

Mexico rank#9 of 62 · top 14.5% calculated
Global iron-and-steel rank#382 of 868 · top 44.0% calculated
Climate contextderived from coordinates calculated

Not available

Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

At 2,400,000 t of steel, Ternium Guerrero San Nicolás de los Garza steel plant is well above the median steel plant in Mexico (1,650,000 t of steel). Subsector: iron-and-steel. As steel plant, it requires high process heat (typically 800–1500°C) for its core industrial operations — heat that must be supplied by boilers, furnaces or direct combustion, and losses through uninsulated vessels and piping represent wasted fuel. Removable modular insulation can cut those losses by 80–96%, surface-cooling equipment to ≤45°C, with payback often under 2 years. 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 1,076,601 t CO₂e a year looks like

This facility's reported annual CO₂e in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

251kcars driven for a year
140khomes' annual energy use
18 milliontree seedlings grown 10 years

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

Carbon cost, Scope 1 & decarbonization potential

At its reported 1.1M t CO₂e/yr (Scope 1), Ternium Guerrero San Nicolás de los Garza steel plant carries no domestic carbon price — and as a CBAM-covered product, its 1.1M t at the EU CBAM rate (€75/t) is €81.1M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. The fastest decarbonization lever is energy efficiency: eliminating heat loss on hot equipment (removable insulation, steam & waste-heat recovery) typically cuts 2–5% of fuel-related CO₂ — here ≈22k t–54k t/yr, worth €1.6M€4.1M, with payback up to 2 years. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).

1.1M t CO₂e / yrScope 1 emissions
€81.1M/yrCBAM exposure on EU exports
22k t–54k t/yr ≈ €1.6M€4.1MDecarbonization potential

Carbon price: EU CBAM €75/t · EU ETS €79/t, July 2, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Efficiency range: US DOE / ASTM C680 (method). Indicative carbon value, not the cash bill — free allocation applies; not compliance advice. Estimate the saving for this site →

Capacity vs largest steel plants in Mexico

ArcelorMittal Lázaro Cárdenas steel plant: 6,500,000 t of steel6.5MArcelorMit…Altos Hornos De Mexico SA AHMSA steel plant: 5,500,000 t of steel5.5MAltos Horn…Ternium Guerrero San Nicolás de los Garza steel plant: 2,400,000 t of steel2.4MTernium Gu…DEACERO Celaya steel plant: 2,300,000 t of steel2.3MDEACERO Ce…TYASA steel plant: 1,650,000 t of steel1.6MTYASA stee…Ternium Puebla steel plant: 1,330,000 t of steel1.3MTernium Pu…Tenaris TAMSA Veracruz steel plant: 1,230,000 t of steel1.2MTenaris TA…Grupo Simec Apizaco Cholula steel plant: 1,140,000 t of steel1.1MGrupo Sime…

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

Operator

Operated by Ternium México SA de CV. All facilities by this operator →

Local climate

Ternium Guerrero San Nicolás de los Garza steel plant sits in a hot semi-arid steppe climate zone (Köppen BSh), at 25.7°N in the northern hemisphere.

~23°Ctypical annual mean
~31°Ctypical warm-season
Hot semi-arid steppe: hot summers and mild winters

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

Site climate & environmental severity

The local climate sets how fast unprotected steel, protective coatings and the insulation on hot process equipment degrade at this site. It sits in a benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
38/100environmental-severity index
12.1°Cseasonal temperature swing
278 kmdistance to coast
LowCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1297 W/m² to ambient — roughly 1.00× the loss at a 20 °C reference; removable insulation recovers about 1232 W/m² of that. 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).

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #3 largest of 10 steel plants in Mexico by reported capacity.

Nearby industrial sites

Location

Coordinates 25.72043, -100.29882. View on OpenStreetMap.

Heat loss & insulation profile

For a steel plant, the main modular-insulation targets are reheat & annealing furnaces, ladles, hot-blast stoves, steam & gas ducting. Typical hot-surface ranges used for screening: 200–1,200 °C °C.

Indicative recoverable energy

A first-pass insulation screen suggests about 4,300 MWh/year of recoverable heat-loss reduction and about 1,500 t CO₂e/year of avoided emissions. Screening estimate scaled from installed process-heat projects and surface-temperature reduction data.

See Inzonex Modular Insulation → Run the calculator →

Screening calculation from facility class, capacity and open emissions/energy context. Engineering survey required before procurement.

Safety & the no-regret first step

Start with a thermal survey of valves, flanges, doors and bends. Removable modular insulation keeps maintenance access open while lowering exposed-surface temperature and wasted heat.

External climate finance your country can access

For energy-efficiency projects around process heat, likely external funding channels include:

CBAM. Exporters of cement, steel, aluminium, fertiliser, hydrogen and electricity to the EU face the Carbon Border Adjustment Mechanism — cutting embedded emissions (efficiency + insulation) lowers the levy.

Sources: country climate-finance facilities and public development-bank programmes.

Frequently asked questions

What type of facility is Ternium Guerrero San Nicolás de los Garza steel plant?

Ternium Guerrero San Nicolás de los Garza steel plant is a steel plant in Mexico. 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.

What capacity is reported for Ternium Guerrero San Nicolás de los Garza steel plant?

The open dataset reports 2,400,000 t of steel of capacity for Ternium Guerrero San Nicolás de los Garza steel plant.

How much CO₂ does Ternium Guerrero San Nicolás de los Garza steel plant emit?

The page uses about 1,076,601 t CO₂e/year from the open dataset It ranks #9 among facilities in Mexico by reported CO₂.

Where is Ternium Guerrero San Nicolás de los Garza steel plant located?

Ternium Guerrero San Nicolás de los Garza steel plant is in Mexico at approximately 25.72043, -100.29882.

Who operates Ternium Guerrero San Nicolás de los Garza steel plant?

The operator recorded in the open dataset is Ternium México SA de CV.

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