Upper and Lower Stack Products

Oxide Bonded Silicon Carbide and Alumina

The upper stack is typically the lowest temperature area of the blast furnace, with abrasion via solid burden being the primary mode of wear.

The SiC 85P (silicate bonded SiC) material offers a cost-effective lining solution for the upper stack, with MS2R, MS6 and Mullfrax® 601 BF alumina-based (Al2O3) products also offering viable options.

Si3N4 (Refrax® 20 SBF) and SiAlON (Sicanit® AL3) bonded materials are an ideal choice where there is a likelihood of abrasion via solid burden, alkali and zinc attack, molten iron and slag corrosion, and thermal fluctuations.

Saint-Gobain Performance Ceramics & Refractories’ shotcrete materials are also a suitable option for stack lining: Shotfrax® CSB 18 for the lower stack and Shotfrax® 60 BF for the middle and upper stack.

 

Material 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: 1,800 °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
 

 

Monolithic Repair Solutions
Shotcrete Solutions Monolithic Repair Solutions
Middle/Upper stack SHOTCRETE SHOTFRAX 60 BF
Low cement 60% Alumina
High Strength, Hight abrasion resistance
High adhesion, low rebound loss
 
Lower stack SHOTFRAX CSB 18
Sol-gel Alumina - Silicon Carbide - Carbon based
High adhesion, low rebound loss
High alkali and abrasion resistance
SHOTFRAX CSB 18 HP
Sol-gel Alumina - Silicon Carbide - Carbon based
High adhesion, low rebound loss, high alkali resistance
Excellent strength and excellent abrasion resistance
Bosh SHOTFRAX CBS 30
Sol-gel Alumina - Silicon Carbide - Carbon based
High adhesion, low rebond loss, very high akali resistance
High abrasion resistance
SHOTFRAX CBS 30 HP
Sol-gel Alumina - Silicon Carbide - Carbon based
High adhesion, low rebound loss, very high alkali resistance
Excellent strenght and excellent abrasion resistance

 

Documents

Brochures & Flyers
Ironmaking Blast Furnace - 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 | 3.24 MB
Iron-Making-Blast-Furnace-Brochure-Web-202338
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