Steel Mill MRO - Blast Furnace Relining: Market Size & Forecast 2026

The global blast furnace relining market sits at approximately USD 4.2 billion in 2025 (base year), held in a structurally tight balance between the approaching end-of-campaign wave for over 70% of the operating global blast furnace fleet, Chinese magnesia-carbon brick supply concentration, and the growing policy pressure to abandon coal-based ironmaking routes altogether in favour of hydrogen-based DRI and electric arc furnace pathways. > **Analyst Take.** The call is to hedge China supply concentration now, not wait for the next magnesia export restriction. The consensus reads BF relining as a slow-decay market; we see a 2027-2030 campaign wave that could undershoot supply by 10-15% if Chinese producers prioritise domestic steel demand over export contracts. The right sequence is: qualify non-PRC suppliers in 2026, negotiate indexed contracts with European and Brazilian suppliers in Q3

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