The Electric Arc Furnace (EAF) is the workhorse of modern steelmaking, converting scrap into high-quality molten steel through the immense power of electric arcs. Operating under extreme temperatures, intense arc radiation, and severe chemical corrosion, the EAF demands refractory solutions that deliver exceptional performance and reliability. As a leading supplier serving over 4,000 industrial furnaces worldwide, JHR Refractory provides comprehensive EAF refractory solutions engineered to extend campaign life, maximize productivity, and reduce maintenance costs.
1. High‑Performance EAF Roof and Delta Refractories
The furnace roof, particularly the delta section, is subjected to intense arc radiation, thermal shock, and chemical attack from slag and furnace gases. Our EAF roof and LF refining roof products are manufactured from premium raw materials using ultra‑fine powder bonding technology. Available in andalusite‑based, corundum‑based, and chrome‑corundum‑based grades, they offer excellent thermal shock resistance, strong resistance to slag and CO/CO₂/SO₂ gas erosion, and superior resistance to arc radiation. Suitable for conventional EAF, UHP EAF, LF refining furnaces, and VD furnaces.
2. Zone‑Specific Magnesia‑Carbon Brick Linings
Each zone of the EAF lining faces distinct wear mechanisms. Our magnesia‑carbon brick series is designed and manufactured according to different operating conditions of various furnace lining areas. Using high‑purity, high‑density fused magnesia or large‑crystal fused magnesia and high‑purity graphite as primary raw materials, with special antioxidants and phenolic resin binders, these bricks are produced through high‑pressure molding. They feature high strength, high refractoriness, and strong resistance to slag erosion and thermal shock—ideal for slag lines, sidewalls, and the molten pool area where direct contact with molten steel and slag occurs.
3. Durable EAF Bottom and Hearth Refractories
The furnace hearth and bottom require materials with excellent resistance to steel penetration, corrosion resistance, and easy sintering. Our EAF bottom dry ramming mix series is manufactured based on the principle of the most closely packed particles, using high‑quality synthetic raw materials, additives, and binders. These products feature strong resistance against molten steel penetration, excellent corrosion resistance, easy sintering, high packing density, and convenient installation—making them the ideal choice for HP and UHP electric arc furnace bottoms.
4. Advanced Gunning and Repair Materials
Extending EAF campaign life requires effective hot repair solutions. Our EAF gunning mix series is manufactured from high‑quality dead‑burned magnesia and other basic composite materials, with a reasonable particle size distribution and specially formulated composite binders and additives. These products feature excellent sintering properties, strong slag resistance, low rebound rate, high adhesion rate, and easy gunning operation. Widely used for hot repair of slag lines, furnace slopes, sidewalls, and tapholes, they enable uniform lining wear and significantly enhance furnace longevity.
5. Conclusion
From roof and delta section to hearth and bottom, from slag line and sidewalls to taphole, JHR Refractory provides comprehensive, zone‑specific refractory solutions for Electric Arc Furnace systems. Backed by ISO9001, ISO14001, and OHSAS18001 certifications, and a proven track record in major steel mills worldwide, we deliver solutions that help our customers achieve longer campaign life, higher steel quality, and lower operating costs.
