$Electric Arc Furnace EAF Refractories - Resco Products$

Electric Arc Furnace (EAF)

An Electric Arc Furnace (EAF) is a firebrick-lined U-shaped steel making vessel installed with a retractable roof. Graphite electrodes enter the furnace through the roof to melt the materials. The furnace is typically lined with resin-bonded magnesia-carbon products. This permits the EAF operator to run with slags that are neutral to very basic in composition.

Electric arc steelmaking uses magnesia-chrome compositions in part or total to handle their specific needs. Typical design requires different materials for the bottom, lower sidewall, and upper sidewall cold and hot spots.

Electric Arc Furnace Process

The EAF is refractory lined and filled with scrap and/or other manufactured iron units. The scrap is melted with high-powered electric arcs from the node/nodes creating molten metal. High-quality refractory brick is required to withstand the high temperatures reducing heat loss to create liquid steel.

Modern EAF vessels have oxygen burners on the side to prevent cold spots in the melting scrap metal process. Once the melt is complete it is transferred into a ladle to start the next process.

Refractories for EAF Vessel

Your Resco Products EAF steel representative will be able to access which brick will be necessary and the correct installation methods. Common Resco products utilized as EAF refractory consist of Nuline 10-99 and Nuline 15 DFP. These are mag-carbon brick utilized for their resistance to slag attack and high temperatures generated from generated arc energy.

To view, a complete breakdown of recommended refractory products for an electric arc furnace by zone views our EAF Article. Resco products are also designed for optimal refractory wear, electric arc furnace maintenance, and extending the life of your vessel.

There are three main types of subhearths when constructing an electric arc furnace.

EAF Deltas

The center of an EAF roof is called the delta. The delta faces three types of conditions: thermal, chemical, and mechanical. Your Resco Products refractory representative can evaluate your processes and the conditions to determine the best refractory pre-cast products to deal with the combination of these factors to provide the best life at the best cost/ton.

View our Electric Arc Furnace pdf

RELATED PRODUCTS

RAM

Denspak O

Denspak O is a tempered ramming mix formulated with high purity Olivine sands. Denspak O can be used for electric furnace runners.

PDS SDS

Denspak O is a tempered ramming mix formulated with high purity Olivine sands. Denspak O can be used for electric furnace runners.

Alumina Brick

DuraLite 70 G

Burned High Alumina Brick

PDS SDS

Burned High Alumina Brick

Alumina Brick

DuraLite 80 G

High Alumina Brick

PDS SDS

High Alumina Brick

Alumina Brick

DuraLite 85 G

High Alumina Brick

PDS SDS

High Alumina Brick

Alumina Brick

DuraLite 90 G

High Alumina Brick

PDS SDS

High Alumina Brick

Low Cement Castable

EZ Cast 3250

EZ CAST® 3250 is a low cement castable with an alumina content of 78%. It has excellent abrasion resistance and superior hot strength to as high as 2700°F. These properties combined with excellent thermal shock resistance have resulted in many successful installations in bottoms and lip rings of steel ladles. This proven product has been successfully used in a wide variety of applications, often substituted for higher alumina content products, making it a highly cost-effective and versatile composition. Its combination of strength, toughness, alumina content, and other compositional features make it an excellent product for many applications.

PDS SDS

Dry Mortar

GRFG Mortar

GRFG MORTAR is a dry, air-setting basic mortar containing fused magnesia-chrome aggregate and can be applied by troweling or dipping consistencies. This basic mortar features excellent resistance to aggressive basic slags.

PDS SDS

Low Cement Castable

Kricon 32-70

KRICON® 32-70 is a 77% alumina, low iron castable with a 3200°F temperature limit. It offers improved slag resistance and positive reheat expansion at steel making temperatures to insure tight, crack-free linings in cast ladles and tundishes.

PDS SDS

Magnesia Brick

Krilex 621-2-C

Re-Bonded Fused Grain Magnesite-Chrome Brick

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Re-Bonded Fused Grain Magnesite-Chrome Brick

RAM

MagVibe 88 N

MAGVIBE 88 N is a basic, heat setting, 88% MgO dry vibratable containing a dead-burned magnesite aggregate. This product is formulated for use as a backup lining in steel ladles.

PDS SDS

MAGVIBE 88 N is a basic, heat setting, 88% MgO dry vibratable containing a dead-burned magnesite aggregate. This product is formulated for use as a backup lining in steel ladles.

Magnesia Brick

Nuline 10-99

Resin bonded, magnesia-carbon brick

PDS SDS

Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 13 DF

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 13 DF TL0853

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 15 DFP

Resin bonded, magnesia-carbon brick

PDS SDS

Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 18 DFP

Resin bonded, magnesia-carbon brick

PDS SDS

Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 20 NF TL0741

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 20 NH

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline 39-89

Resin bonded, magnesia-carbon brick, tar impregnated brick TI Brick

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Resin bonded, magnesia-carbon brick, tar impregnated brick TI Brick

Magnesia Brick

Nuline 7-99

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline R-10 SA

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline R-20

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Nuline R-20 A

Resin bonded, magnesia-carbon brick

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Resin bonded, magnesia-carbon brick

Magnesia Brick

Oxiline B

Tar impregnated, burned high purity magnesite brick

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Tar impregnated, burned high purity magnesite brick

Magnesia Brick

Oxiline H

Burned high purity magnesite brick

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Burned high purity magnesite brick

Magnesia Brick

Perecon TI

Burned, hydration resistant, tar impregnated magnesia brick

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Burned, hydration resistant, tar impregnated magnesia brick

Basic Monolithics

Permanente 165 AF Castable

PERMANENTE® 165-AF is a magnesite-based, basic castable with a unique, nonchromate bonding system and can be installed by vibration casting or ramming methods, to maximize properties.

PDS SDS

PERMANENTE® 165-AF is a magnesite-based, basic castable with a unique, nonchromate bonding system and can be installed by vibration casting or ramming methods, to maximize properties.

Basic Monolithics

Permanente 165 AF Ram Mix

PERMANENTE® 165-AF RAM MIX is a fine sized high MgO material intended for leveling ladle bottoms and for backfill behind working linings in ladles, AOD degassers and other metallurgical vessels. It can be rammed or cast.

PDS SDS

Basic Monolithics

Permanente 98 AF

PERMANENTE® 98-AF is an high purity magnesite-based, basic castable with a unique, non-chromate bonding system and can be installed by vibration casting or ramming methods, to maximize properties. PERMANENTE® 98-AF provides excellent densities plus resistance to basic slags. It also possesses excellent refractoriness and volume stability

PDS SDS

Dry Mortar

Permanente Mortar

PERMANENTE® MORTAR is a dry, heat setting, high magnesia mortar. This magnesite mortar is designed to lay up basic brick. Ideally suited for use with magnesite or magnesia-carbon brick. This mortar is suggested for working and safety linings in both steel and non-ferrous metals applications.

PDS SDS

Low Cement Castable

ProCast 80

PROCAST® 80 is a bauxite-based, ultra-low cement castable. This vibration mix performs well in steel ladles, EAF deltas, and other applications requiring high strength, good thermal shock resistance, and good abrasion resistance.

PDS SDS

Low Cement Castable

Ref Cast 90FS LC

A low cement, fused silica based castable of exceptional purity, high strength and very good dimensional stability. It has unique resistance to thermal shock and spalling, as well as to most acid slags.

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Plastic

Ref Ram 850HS FG

REF RAM 850 HS FG is a Fine-Grained, Phosphate-Bonded 80% alumina plastic. The fine grain improves ramming characteristics and is beneficial for patching. This product is installed by conventional ramming methods.

PDS SDS

Plastic

Ref Ram 870FG-M

Phos free, fine grain, high alumina, high quality matrix patch refractory possessing volume stability. Resistant to metal penetration with excellent density. Grain structure allows for this veneering. Workability consistent with use in some patching applications.

PDS SDS

Plastic

Ref Ram 877F

Fine grain, phosphate bonded high alumina plastic with corrosion resistant matrix. Grain structure adapted for ramming thin sections or patching. Good strength and volume stability.

PDS SDS

Fine grain, phosphate bonded high alumina plastic with corrosion resistant matrix. Grain structure adapted for ramming thin sections or patching. Good strength and volume stability.

RAM

Ref Ram CCMH RM

REF RAM CCMH RM is a ready-to-use, phosphate-bonded, 60% alumina ramming mix that is used primarily in the steel industry. This product is installed by pneumatic ramming methods. Prior to service, material must be properly cured to avoid hazardous conditions. Avoid contact with molten metal until thoroughly dried.

PDS SDS

Conventional Castable

REPMIX (UK)

REPMIX is a 1500°C multipurpose Refractory Castable which can be Cast, Gunned or Trowelled into place.

PDS

REPMIX is a 1500°C multipurpose Refractory Castable which can be Cast, Gunned or Trowelled into place.

Insulating Castable

Rescocast 3 (UK)

RESCOCAST 3 is a high performance insulating castable designed for a variety of applications. Its density is approximately 60 lb/ft3 and offers superior strength characteristics, as well as a high strength-to-insulation ratio. This material can be used as an original lining material or as a replacement for refractory ceramic fiber. RESCOCAST 3 can be installed by either gunning or casting methods. For pumpcasting or shotcreting applications, RESCOCAST 3 PC is recommended.

PDS SDS

Basic Monolithics

Rescomag Mix

Magnesite based ramming mix

PDS SDS

Magnesite based ramming mix

Plastic

Rescoram 10CR

RESCORAM 10 CR is a high alumina, phosphate-bonded plastic with 10% chromic oxide that is used throughout the metals producing industries. Its chemical bond develops high strength at lower temperatures. This property makes it ideal for application where there is insufficient heat to develop the ceramic bond required in heat-setting plastics.

PDS SDS

Plastic

Rescoram 7CR

RESCORAM 7 CR is a high alumina, phosphate-bonded plastic with 7% chromic oxide that is used throughout the metals producing industries. RESCORAM 7 CR has a chemical bond that develops a high strength at lower temperatures. This property makes it ideal for application where there is insufficient heat to develop the ceramic bond required in heat-setting plastics.

PDS SDS

Conventional Castable

Sakonite

SAKONITE® is a very economical refractory concrete. Although its maximum service temperature is 2200°F, it is designed primarily for service between 70°F and 1000°F. It is widely used for cast floors exposed to molten metals or hot ingots. It can be cast or pumped and finished like ordinary concrete. It may also be rammed or cast-vibrated for increased density and strength with minimum shrinkage. SAKONITE® is also available as GC SAKONITE® gun mix.

PDS SDS

Low Cement Castable

Vibrocast 85 ULM

VIBROCAST 85ULM is a Low Cement, 80% Alumina castable that can be installed by vibration cast methods only.

PDS SDS

VIBROCAST 85ULM is a Low Cement, 80% Alumina castable that can be installed by vibration cast methods only.

Low Cement Castable

Vibrocast ASC-8LT C

VIBROCAST ASC-8LT(C) is a high purity, low-cement, alumina-spinel castable designed to provide maximum resistance to molten steel and steelmaking slags. VIBROCAST ASC-8LT(C) is designed for production of cast shapes or monolithic placement in steel ladles and related steelmaking environments. This product should be installed by vibration casting only.

PDS SDS

Low Cement Castable

Vibrocast ASC-8LT C-C

VIBROCAST ASC-8LT (C-C) is a high purity, low-cement, alumina-spinel castable designed to provide maximum resistance to molten steel and steelmaking slags. VIBROCAST ASC-8LT (C-C) is designed for production of cast shapes or monolithic placement in steel ladles and related steelmaking environments. This product should be installed by vibration casting only.

PDS SDS