Our products
Refractory bricks
Fireclay Bricks
| Grade | Description | Refractoriness under load T₀.₆ (°C) | AI2O3 (%) | Fe2O3 (%) | Bulk density (g/cm3) | Open porosity (%) | Cold crushing strength (MPa) |
| CP | Economical products for less demanding applications in moderate working conditions | 1300 | 30,0 | 3,0 | 1,95 | 22 | 25 |
| BS | Products for less demanding applications in moderate working conditions | 1330 | 32,0 | 3,0 | 2,00 | 20 | 30 |
| BW | 1350 | 32,0 | 3,0 | 2,10 | 20 | 35 | |
| A30S | Products with enhanced mechanical properties | 1360 | 32,0 | 2,5 | 2,00 | 19 | 35 |
| AS | 1370 | 34,0 | 3,0 | 2,05 | 19 | 35 | |
| A35T | 1400 | 35,0 | 2,5 | 2,05 | 19 | 35 | |
| AW | 1380 | 36,0 | 2,9 | 2,10 | 20 | 35 | |
| A40S | Products with enhanced mechanical properties and good resistance to thermal shock | 1380 | 38,0 | 2,3 | 2,10 | 18 | 35 |
| A40 | 1420 | 39,0 | 2,5 | 2,10 | 22 | 30 | |
| A40T | 1450 | 40,0 | 2,5 | 2,15 | 19 | 35 | |
| Al44 | 1460 | 41,0 | 2,5 | 2,15 | 19 | 35 | |
| Al44-2 | Products with high mechanical and thermomechanical properties and increased alumina content | 1480 | 44,0 | 2,1 | 2,20 | 18 | 40 |
Andalusite Bricks
| Grade | Description | Refractoriness under load T₀.₆ (°C) | AI2O3 (%) | Fe2O3 (%) | Bulk density (g/cm3) | Open porosity (%) | Cold crushing strength (MPa) |
| AT55 | Products with wide application possibilities. With good resistance to thermal shock and aggressive chemical environments. | 1600 | 55,0 | 1,8 | 2,35 | 18 | 50 |
| AT60 | 1620 | 60,0 | 1,7 | 2,40 | 17 | 55 | |
| AT60 HQ | Products with high mechanical and thermomechanical properties. Resistant to abrasion, thermal shock, aggressive chemical environments and CO exposure. AT63P HQ is a chemically bonded, fired material characterized by reduced iron oxide content. | 1640 | 60,0 | 1,4 | 2,48 | 14 | 75 |
| AT63P HQ | 1640 | 63,0 | 0,9 | 2,51 | 12,5 | 85 |
Bauxite Bricks
| Grade | Description | Refractoriness under load T₀.₆ (°C) | AI2O3 (%) | Fe2O3 (%) | Bulk density (g/cm3) | Open porosity (%) | Cold crushing strength (MPa) |
| AL60 | Products based on high-alumina aggregates, resistant to thermal shock and aggressive chemical environments. | 1520 | 59,0 | 1,9 | 2,35 | 20 | 35 |
| AL62 | 1550 | 61,0 | 1,8 | 2,35 | 19 | 35 | |
| AL80 | Product based on bauxite, chemically bonded and fired. Designed for demanding conditions, with high resistance to thermal shock, abrasion, and aggressive chemical environments. | 1520 | 83,0 | 1,4 | 2,60 | 19 | 55 |
Acid-resistant bricks
| Grade | Description | Refractoriness under load T₀.₆ (°C) | AI2O3 (%) | Bulk density (g/cm3) | Cold crushing strength (MPa) | Acid Resistance % |
| KW1 | Unglazed products characterized by high resistance to concentrated and diluted acids and alkalis. | 1340 | 32,0 | 2,15 | 45 | 2,5 |
| KW2 | 1350 | 35,0 | 2,15 | 40 | 3 |
Fired Insulating Bricks
| Grade | Description | Max. Service Temperature | AI2O3 | Fe2O3 | Bulk density | Cold crushing strength | Thermal Conductivity (W/mK) | |||
| (°C) | (%) | (%) | (g/cm3) | (MPa) | 600 (°C) | 800 (°C) | 1000 (°C) | 1200 (°C) | ||
| L8T | Lightweight products with very good insulating properties and high compressive strength | 1260 | 33,0 | 2,4 | 0,90 | 4 | 0,32 | 0,33 | 0,37 | |
| L10T | 1300 | 35,0 | 2,4 | 1,10 | 5 | 0,43 | 0,46 | 0,49 | 0,52 | |
| L13T | 1330 | 36,0 | 3,0 | 1,40 | 7 | 0,47 | 0,51 | 0,53 | 0,56 | |
| L23W | Ultra-lightweight products with excellent insulating properties and low iron content. Classified as IFB Grade 23. | 1260 | 44,5 | 0,95 | 0,63 | 1,6 | 0,23 | 0,25 | 0,29 | |
| L30W | Lightweight, high-alumina products with very good insulating properties and low iron content. Dedicated for high-temperature applications. Classified as IFB Grade 30. | 1650 | 71,0 | 0,6 | 1,02 | 3 | 0,43 | 0,45 | 0,46 | 0,48 |
Perlite Insulating Bricks
| Grade | Description | Max. Service Temperature | AI2O3 | Fe2O3 | CaO | Bulk density | Cold crushing strength | Thermal Conductivity (W/mK) | ||
| (°C) | (%) | (%) | (%) | (g/cm3) | (MPa) | 300 (°C) | 600 (°C) | 800 (°C) | ||
| LPT4 | Ultra-lightweight, hydraulically bonded products with excellent insulating properties. | 800 | 10,0 | 2,5 | 24,0 | 0,50 | 1,2 | 0,14 | 0,16 | |
| LPT6 | 900 | 13,0 | 2,4 | 21,0 | 0,65 | 2 | 0,18 | 0,22 | 0,24 | |
| LPT8 | 1000 | 19,0 | 2,4 | 21,0 | 0,85 | 2,5 | 0,22 | 0,24 | 0,28 | |
| LPT10 | Lightweight, hydraulically bonded products with excellent insulating properties and high compressive strength. | 1200 | 36,0 | 2,0 | 9,0 | 1,05 | 5 | 0,26 | 0,31 | 0,34 |
The values provided are for information purposes only and represent the typical properties of individual refractory products.
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Ostrowieckie Zakłady Materiałów Ogniotrwałych “OZMO”
ul. Sandomierska 112
27-400 Ostrowiec Świętokrzyski