Electric Arc Furnace Refractory Solutions

EAF Refractory Products & Lining Systems

A complete range of magnesia-carbon bricks, safety bricks, EBT taphole components, roof products and monolithic refractory materials for the sidewall, hot-spot, slag, metal, bottom and maintenance zones of electric arc furnaces.

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Approx. 97% MgO Magnesium oxide level shown for the listed magnesia-carbon brick grades

5–15% Carbon Fixed-carbon range available across the listed EAF brick grades

$Electric arc furnace refractory lining zones and magnesia-carbon brick products$

EAF Lining Concept

High-Performance Refractories for Severe Furnace Zones

Electric arc furnaces require refractory products with high service life in areas exposed to intense heat, thermal cycling, slag attack, metal contact, abrasion and mechanical loading.

The magnesia-carbon brick range is intended for EAF sidewall and other severe lining applications. The listed grades contain approximately 97% MgO and are described as incorporating high-purity fused magnesia, while the final grade should be selected according to the wear conditions of each furnace zone.

Magnesia-carbon bricks for hot-face lining zones

Safety bricks for permanent lining protection

EBT taphole and end-brick components

Gunning, fettling, ramming and repair materials

Electric arc furnace lining zones including hot spot, sidewall, safety lining and bottom

Main Advantages

Performance Requirements for EAF Refractories

Thermal-Shock Resistance Designed to withstand repeated heating, cooling and operational temperature changes.

Abrasion Resistance Helps resist mechanical wear in high-impact and high-flow furnace zones.

Slag Resistance Supports lining performance in zones exposed to aggressive EAF slag.

High Strength Provides mechanical integrity for shaped bricks and critical lining components.

Lining Zones

Key Areas of the Electric Arc Furnace

The lining is divided into zones so that each area can be supplied with a refractory product appropriate to its thermal, chemical and mechanical exposure.

Wall Upper Part Upper sidewall region exposed to thermal cycling and furnace atmosphere.

Hot Spot Severe localized high-temperature area requiring high-performance MgO-C bricks.

Sidewall Main working-lining area exposed to heat, slag, abrasion and operational wear.

Safety Lining Permanent backup lining protecting and supporting the steel shell.

Bottom Lower furnace area requiring refractory stability under metal contact and structural loading.

Product Range

EAF Refractory Bricks, Components & Masses

The supplied product pages identify eight main product groups for EAF lining, taphole operation, roof construction and refractory maintenance.

Magnesia-Carbon Bricks

MgO-C bricks for hot spots, slag zones, metal zones, sidewalls and bottom applications.

Magnesite Safety Bricks

Basic refractory bricks for the permanent or backup lining behind the EAF working lining.

EBT Taphole Sleeves

Shaped refractory sleeves for eccentric bottom tapping systems, produced to approved dimensions.

Alumina–SiC–Carbon End Bricks

Composite taphole end bricks for zones requiring thermal, abrasion and mechanical resistance.

Gunning, Fettling & Dry Ramming Mass

Monolithic materials for pneumatic repair, fettling and compacted dry lining applications.

EBT Repair Mass

Refractory repair material for restoring worn areas of the EBT taphole system.

Pre-Cast Roof Delta

Pre-cast refractory component for the EAF roof delta, manufactured according to furnace design.

EBT Filling Mass

Filling products available in magnesite-based and olivine-based formulations for EBT operation.

Dark magnesia-carbon refractory bricks for electric arc furnaces

Magnesia-Carbon Brick Range

High-MgO Bricks with Multiple Carbon Levels

The listed EAF brick range contains 97% MgO with fixed carbon levels from 5% to 15%. Different grades provide different combinations of bulk density, apparent porosity and cold-crushing strength.

Grade selection should be based on the exact furnace zone, thermal loading, slag practice, oxidation exposure, brick dimensions and previous wear history.

5–8% Carbon Grades for applications requiring lower fixed carbon within the listed range.

10–12% Carbon Intermediate-carbon grades, including low-porosity 10KXT.

14–15% Carbon Higher-carbon grades, including low-porosity 14KXAT.

Main Properties

MgO-C Brick Grades for EAF

Chemical-analysis and physical-property values are reproduced from the supplied product information.

Trade Name	MgO	SiO?	CaO	Fixed Carbon	Bulk Density (g/cm³)	Apparent Porosity (%)	Cold Crushing Strength (kg/cm²)
MEHR.MAG.Carbon.5KX	97	0.7	1.4	Min. 5	2.95–3.05	3–5	400–600
MEHR.MAG.Carbon.7KX	97	0.7	1.4	Min. 7	3.0–3.1	4–6	350–550
MEHR.MAG.Carbon.8KX	97	0.7	1.4	Min. 8	3.0–3.1	4–6	350–550
MEHR.MAG.Carbon.10KXT	97	0.7	1.4	10	3.05–3.15	<1	500–700
MEHR.MAG.Carbon.12KX	97	0.7	1.4	12	3.0–3.1	3–5	300–500
MEHR.MAG.Carbon.12KHX	97	0.7	1.4	12	2.95–3.05	3–5	300–600
MEHR.MAG.Carbon.14KX	97	0.7	1.4	14	3.0–3.1	2–4	300–500
MEHR.MAG.Carbon.14KXAT	97	0.7	1.4	14	3.1–3.2	<1	500–700
MEHR.MAG.Carbon.15KX	97	0.7	1.4	15	2.95–3.05	3–5	300–500

Technical note: The table applies only to the listed MgO-C brick grades. It should not be assumed that the same properties apply to the safety bricks, taphole sleeves, end bricks, repair masses, roof delta or filling products. Final selection must be based on approved technical data sheets, furnace drawings, operating practice and wear history.

Quotation Requirements

Information Needed for Technical Selection

Complete operating and dimensional information helps confirm the appropriate brick grade, component geometry and monolithic refractory product.

EAF manufacturer, furnace capacity and equipment model

Application zone: hot spot, sidewall, slag line, bottom, roof or EBT

Brick, sleeve, end-brick or roof-delta drawings

Current refractory grade and fixed-carbon level

Slag chemistry, operating temperature and furnace practice

Wear history and expected service campaign

Required quantities, packaging and delivery schedule

Destination country and required documentation

Request an EAF Refractory Product Quotation

Send us the furnace model, application zone, drawings, current refractory grade, operating conditions, required quantity and destination country for technical and commercial review.

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