Steel Mill MRO - Rolling Mill Maintenance: Market Size & Forecast 2026

The global steel mill MRO market for rolling mill maintenance sits at approximately USD 18.0 billion in 2025 (base year), held in a structurally supplier-favoring balance between concentrated automation and mechanical equipment supply, CBAM carbon reporting obligations that took effect on 1 January 2026, and steady replacement-driven demand from an ageing global rolling mill parc. Hot-rolled coil steel feedstock, which anchors roughly 40-45% of total MRO input costs, trades at USD 720 per metric tonne in the US, EUR 680 per metric tonne in the EU, and USD 590 per metric tonne in Asia for 2026-Q2 [Claight estimate: industry pricing reports]. > **Analyst Take.** The consensus 4.2% CAGR looks reasonable structurally, but the composition is wrong. Buyers are pricing this as a replacement-driven consumable category when roughly one-third of spend is actually automation and digital systems wit

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