Mittal Steel Usa - Indiana Harbor East — United States

Mittal Steel Usa - Indiana Harbor East is a lime plant in United States. Its listed capacity is 135,931 t of lime. Lime plants calcine limestone in kilns at 800–900°C; the quicklime they produce reacts with moisture and has to be kept dry. By capacity it ranks #53 among 75 lime plants in United States. It emits about 168,033 t CO₂e a year from Climate TRACE. That is 0.03% of the CO₂e from the 1,910 facilities in United States that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 88% above the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-38467333.

In context: how this facility compares

At 135,931 t of lime, Mittal Steel Usa - Indiana Harbor East is below the median lime plant in United States (208,805 t of lime). Subsector: lime. As lime plant, it requires high process heat (typically 600–900°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Lime plants calcine limestone in kilns at 800–900°C; the quicklime they produce reacts with moisture and has to be kept dry.

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

What 168,033 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 lime plants in United States

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

Parent company

Cleveland-Cliffs Inc US EPA GHGRP
Parent company per US EPA GHGRP; the operator itself is not stated in the source dataset.

Local climate

Mittal Steel Usa - Indiana Harbor East sits in a hot-summer humid continental climate zone (Köppen Dfa), at 41.7°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 thermal cycling the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1400 W/m² to ambient — roughly 1.08× 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 #53 largest of 75 lime plants in United States by listed capacity (Climate TRACE).

Nearby industrial sites

• Arcelormittal Usa Indiana Harbor · Lime Plant
• Cleveland-Cliffs Indiana Harbor steel plant · Steel Plant · 9,040,985 t CO₂
• EAST CHICAGO RECOVERY INC · Metals Plant · 6,267 t CO₂
• Harsco Metals · Metals Plant · 482 t CO₂
• LINDE - WHITING, IN 5&6 · Chemical Plant · 1,580,865 t CO₂
• LINDE - WHITING, IN 1-4 · Chemical Plant · 157,554 t CO₂

Location

Coordinates 41.68, -87.4264. View on OpenStreetMap. Location shown at industrial-zone / municipality precision (shared source geocode).

Frequently asked questions