Hearth Products

Alumina Corundum Sialon Bond

Blast furnace hearths are traditionally lined with high thermal conductive carbon-based materials.

Saint-Gobain Performance Ceramics & Refractories' Ceramic Cup is widely recognized as the ideal design for the hearth, typically providing over 9 years' service life alongside significant energy savings.

Detailed feedback from users has shown that the “Coranit” grade wears very gradually over the lifetime of the hearth. 400 mm thickness of Ceramic Cup wall has been shown to last 9 years or more. After the Ceramic Cup has worn, the carbon then wears quite rapidly until an equilibrium is reached whereby the hot face is sufficiently cooled to allow a self-protecting “skull” to form.

 

Lifetime of the hearth can be increased even more using up to 600 mm Ceramit Cup wall thickness and the 3rd generation Coranit SlagR.
 

Materials Solutions
Blast Furnace Area Materials Solutions
Upper stack Refrax 20 SBF
Nitride bonded Silicon Carbide
Mortar SiC P / Carbofrax 8S
SiC 85P
Silicon Carbide Base
Mortar SiC P
MS2R
High Alumina
MS6
High Alumina
Mortar Coral, Mortar, 336
Lower stack Refrax 20 SBF
Nitride bonded Silicon Carbide
Mortar SiC P / Carbofrax 8S
SiC 85P
Silicon Carbide Base
Mortar SiC P
MS2R
High Alumina
Mortar Coral, Mortar AL 100 S or FP, 336
Sicanit Al3
Silicon Carbide Base Sialon Bond
Improved alkali and oxydation resistance
Mortar SiC P / Carbofrax 8S
Bosh and Belly Refrax 20 SBF
Nitride bonded Silicon Carbide
Mortar SiC P / Carbofrax 8S
Sicanit Al3
Silicon Carbide Base Sialon Bond
Improved alkali and oxydation resistance
Mortar Sic P / Carbofrax 8S
Coranit 3S
High Alumina Corundum Sialon bond
Low thermal conductivity
Mortar 336
 
Tuyere belt MonoCoral
High Alumina
Precast Ultra-Low Cement Corundum Big Block
Mortar 336

 

MonoGuard
High Alumina
Precast no cement big block
Increased Iron and Slag resistance, high strength and stability
Max. recommended temperature: 1800 °C
Mortar 336
Sicanit TB
Silicon Carbide Base Sialon Bond
Brick assembly
Mortar SiC P
 
Hearth Coranit AL
High Alumina Corundum Sialon bond
Iron/Slag Corrosion resistant, good Abrasion and Alkali Corrosion Resistance
Mortar 337
Coranit SlagR
High Alumina Corundum Sialon bond
3rd generation
Improved Mechanical Stability; better Slag & Iron and excellent Abrasion Resisitance
Mortar 337
   
Ceramic Pad MS4
Classical Mullite recipe
Iron resistant and stable
Mortar Coral, Mortar 336
MS4R
High Alumina
Iron resistant and stable
Mortar Coral, Mortar 336
MULLFRAX 301
High purity mullite
Iron resistant and stable
Mortar Mullfrax 36
 
References
Quantity of Reference Materials Date
15 MonoCHROMCOR Since 1984
27 MonoCORAL Since 1985
17 CORANIT Since 1991
34 CORANIT AL Since 2002
4 CORANIT SlagR Since 2018

Documents

Brochures & Flyers
Ironmaking Blast Furnace - Flyer

Crude steel production begins with the reduction process, where the iron ore reacts with carbon sources inside the blast furnace. The blast furnace

PDF | 211.51 KB
Iron-Making-Blast-Furnace-3D-model-Flyer-202330
Brochures & Flyers
Ironmaking Coranit Ceramic Cup - Brochure

Crude steel production begins with the reduction process, where the iron ore reacts with carbon sources inside the blast furnace. The blast furnace

PDF | 845.39 KB
Iron-making-Coranit-Ceramic-cup-brochure-202375