Functional refractory products
The steel industry is the largest consumer of shaped refractory products that have an additional function during service. Products such as isostatically pressed products for steel casting, slide gates and purging bricks play a vital role in the production process. These products are subjected to extreme chemical, mechanical and thermal stress and are therefore made of premium, synthetic high-alumina raw materials.
Almatis aggregates with controlled particle size distribution (PSD) and low batch-to-batch variation are the material of choice for the production of such products.
Tabular & other Aggregates
Dense, sintered crystalline alpha alumina with 99,5% Al2O3
High purity and chemical resistance
Dense, sintered crystalline alpha alumina with 99,5% Al2O3
High purity and chemical resistance
Safety Data Sheet
Product Data Sheet
- GP-RCP_001_Tabular_T60_T64_0812 127 KB ( en )
Technical Paper- 2019 - Formation of Hexa-Aluminate Solid Solution Phases in Spinel Containing Castables ( en )
- 2016 - Case Studies on Optimization of Selected Value-added Premium Aluminas to Attain a Comprehensive Leap in the Refractory Properties ( en )
- 2016 - Value Enhancement Through Engineered Alumina Products For Monolithic And Brick Applications ( en )
- 2014 - Role of Tabular Alumina As a Suitable Aggregate for Emerging Applications – Focus on Dry Ramming Mix ( en )
- 2013 - Castables for Industrial Applications – Still Room for Improvement! ( en )
- 2013 - Supply and Demand of High Alumina Raw Materials for Refractories in Europe ( en )
- 2012 - Rheology of High Performance Alumina and Spinel Castables ( en )
- 2011 - Review of Matrix Aluminas for Refractory Formulations ( en )
- 2010 - Technical and economic review of high alumina raw materials for steel refractories ( en )
- 2009 - New Coarse Tabular Aggregates for Improved Castables ( en )
- 2008 - Latest Development in Refractory Monolithics ( en )
- 2007 - Review of Tabular alumina as high perfomance refractory material ( en )
- 2007 - Tabular Alumina for High Purity Corundum Brick ( en )
- 2005 - Almatis global product concept for the refractory industry ( en )
- 2005 - Raw material concepts for SiO2 free high strength and low wettability aluminium castables ( en )
- 2002 - Raw material concepts for SiO2 free high strength castables in the temperature range up to 1200°C ( en )
- 2002 - Upgrading Castable Performance through Matrix Optimization ( en )
- 2000 - Synthetic alumina raw materials - key elements for innovative refractories ( en )
- 1997 - New Developments of Tabular Alumina and Tabular Alumina Spinel Castables ( en )
- 1996 - The Matrix Advantage system, a new approach to low moisture LC selfleveling alumina and alumina spinel castables ( en )
- 1994 - The influence of SiO2 and Spinel on the hot properties of high alumina low cement castables ( en )
- 1992 - New Sinter Spinels for Castables in Steel Applications ( en )
- 1983 - Fine Aluminas for High Performance Refractories ( en )
- Perceptions and Characteristics of Fused and Sintered Refractory Aggregates ( en )
More Alumina-rich spinel (90% Al2O3)
Used in monolithics and bricks for steel applications
More Alumina-rich spinel (90% Al2O3)
Used in monolithics and bricks for steel applications
Safety Data Sheet
Product Data Sheet
- GP-RCP_004_Magnesium_Aluminate_Spinel_0520 107 KB ( en )
Technical Paper- 2019 - Formation of Hexa-Aluminate Solid Solution Phases in Spinel Containing Castables ( en )
- 2016 - Value Enhancement Through Engineered Alumina Products For Monolithic And Brick Applications ( en )
- 2013 - Castables for Industrial Applications – Still Room for Improvement! ( en )
- 2010 - Spinel: in-situ versus preformed- clearing the myth ( en )
- 2008 - Latest Development in Refractory Monolithics ( en )
- 2004 - Magnesium Aluminate Spinel Raw Materials for High Performance Refractories for Steel Ladles ( en )
- 2002 - Raw material concepts for SiO2 free high strength castables in the temperature range up to 1200°C ( en )
- 1997 - New Developments of Tabular Alumina and Tabular Alumina Spinel Castables ( en )
- 1994 - The influence of SiO2 and Spinel on the hot properties of high alumina low cement castables ( en )
- 1992 - New Sinter Spinels for Castables in Steel Applications ( en )
Dense, sintered aggregate with 96% Al2O3 and 1,2% TiO2
Replacement for Brown fused alumina
Dense, sintered aggregate with 96% Al2O3 and 1,2% TiO2
Replacement for Brown fused alumina
Safety Data Sheet
Product Data Sheet
- GP-RCP_002_BSA_96_1118 147 KB ( en )
Technical Paper- 2019 - Formation of Hexa-Aluminate Solid Solution Phases in Spinel Containing Castables ( en )
- 2016 - Five Years after Market Launch – Experiences with BSA 96 ( en )
- 2016 - Alumagcarbon Bricks with Different Alumina Aggregates – Technical Properties and Industrial Application Results with a New Sintered Aggregate ( en )
- 2016 - Case Studies on Optimization of Selected Value-added Premium Aluminas to Attain a Comprehensive Leap in the Refractory Properties ( en )
- 2016 - Value Enhancement Through Engineered Alumina Products For Monolithic And Brick Applications ( en )
- 2015 - Spinel Formation and Technical Properties of Alumagcarbon Bricks with Different Alumina Aggregates ( en )
- 2013 - Castables for Industrial Applications – Still Room for Improvement! ( en )
- 2013 - Supply and Demand of High Alumina Raw Materials for Refractories in Europe ( en )
- 2011 - New european sinter aggregate with 96 % Al2O3 ( en )
- Perceptions and Characteristics of Fused and Sintered Refractory Aggregates ( en )
Calcined Aluminas
Alpha-alumina for refractory matrix enhancement
Particle size / D50 = 3.5µm
Na2O Content = 0.12%
Alpha-alumina for refractory matrix enhancement
Particle size / D50 = 3.5µm
Na2O Content = 0.12%
Safety Data Sheet
Product Data Sheet
Technical Paper- 2016 - Case Studies on Optimization of Selected Value-added Premium Aluminas to Attain a Comprehensive Leap in the Refractory Properties ( en )
- 2012 - Rheology of High Performance Alumina and Spinel Castables ( en )
- 2011 - Review of Matrix Aluminas for Refractory Formulations ( en )
- 2002 - Upgrading Castable Performance through Matrix Optimization ( en )
- 1983 - Fine Aluminas for High Performance Refractories ( en )
Reactive Aluminas
Mono-modal alpha-alumina
Particle size / D50 = 0.6µm
Na2O Content = 0.08%
Mono-modal alpha-alumina
Particle size / D50 = 0.6µm
Na2O Content = 0.08%
Safety Data Sheet
Product Data Sheet
Technical Paper- 2016 - Case Studies on Optimization of Selected Value-added Premium Aluminas to Attain a Comprehensive Leap in the Refractory Properties ( en )
- 2012 - Rheology of High Performance Alumina and Spinel Castables ( en )
- 2011 - Review of Matrix Aluminas for Refractory Formulations ( en )
- 2002 - Upgrading Castable Performance through Matrix Optimization ( en )
- 2001 - Responding to the refractory industry's need for fully ground matrix aluminas ( en )
- 1983 - Fine Aluminas for High Performance Refractories ( en )
Mono-modal alpha-alumina
Particle size / D50 = 3.3µm
Na2O Content = 0.23%
Mono-modal alpha-alumina
Particle size / D50 = 3.3µm
Na2O Content = 0.23%
Safety Data Sheet
Product Data Sheet
- RP-AM-RCP-002_Reactives_for_Refractories_0812 736 KB ( en )
Technical Paper- 2016 - Case Studies on Optimization of Selected Value-added Premium Aluminas to Attain a Comprehensive Leap in the Refractory Properties ( en )
- 2012 - Rheology of High Performance Alumina and Spinel Castables ( en )
- 2011 - Review of Matrix Aluminas for Refractory Formulations ( en )
- 2002 - Upgrading Castable Performance through Matrix Optimization ( en )
- 2001 - Responding to the refractory industry's need for fully ground matrix aluminas ( en )
- 1983 - Fine Aluminas for High Performance Refractories ( en )
Bi-modal alpha-alumina
Particle size / D50 = 2.5µm
Na2O Content = 0.10%
Bi-modal alpha-alumina
Particle size / D50 = 2.5µm
Na2O Content = 0.10%
Safety Data Sheet
Product Data Sheet
Technical Paper- 2016 - Case Studies on Optimization of Selected Value-added Premium Aluminas to Attain a Comprehensive Leap in the Refractory Properties ( en )
- 2012 - Rheology of High Performance Alumina and Spinel Castables ( en )
- 2011 - Review of Matrix Aluminas for Refractory Formulations ( en )
- 2002 - Upgrading Castable Performance through Matrix Optimization ( en )
- 2001 - Responding to the refractory industry's need for fully ground matrix aluminas ( en )
- 1983 - Fine Aluminas for High Performance Refractories ( en )