Special
Special refractory castables - TRICAST
Special refractory castables (ULCC, NCC) are produced of a number of aggregates such as calcinated fireclay, andalusite, bauxite, high-alumina, tabular and white-fused aluminas and spinel, microcomponents, defflocculating agents, high alumina cements and other additives (SiC, Mg) on the advanced automated technological lines.
They are prepared for dispatching as dry mixes packed in either paper bags or big bags according to the customer´s wish. They are used for many industrial applications like refractory linings or precast shapes that are to withstand severe conditions. Generally they are installed by vibrating or casting without vibration (self flowing grades).
| TRICAST | Chem. composition | Bulk density | Permanent linear change | Cold crushing strength | *Heating tempe- rature | Grain size | Appli- cation tempe- rature | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Signature | Al2O3(%) | Fe2O3(%) | CaO (%) | 1100C (g*cm–³) | (%) | 1100C (MPa) | (MPa) | (°C) | (mm) | (0C) |
| BNS30BSiC | 62,0 | 0,2 | 2,1 | 2,80 | 0,0* | 50 | 70* | 1500 | 0 – 6,0 | 1200 |
| BNS60SiC | 31,0 | 0,1 | 1,3 | 2,50 | 0,3* | 40 | 100* | 1380 | 0 – 2,0 | 1200 |
| BN75BX | 78,0 | 1,0 | 1,6 | 2,90 | -1,0* | 60 | 80* | 1500 | 0 – 6,0 | 1500 |
| BNS75BX | 78,0 | 1,0 | 1,6 | 2,90 | -0,1* | 60 | 110* | 1500 | 0 – 6,0 | 1500 |
| BNO82B | 83,0 | 1,0 | 1,6 | 2,70 | +0,2* | 25 | 80* | 1400 | 0 – 6,0 | 1600 |
| BHO80B | 80,0 | 1,7 | 5,8 | 2,30 | -4,0* | 10 | 40* | 1500 | 0 – 3,0 | 1400 |
| BU45SiCC | 45,0 | – | 1,0 | 2,60 | 0,1* | 25 | 30* | 1500 | 0 – 8,0 | 1600 |
| BU10SiCC | 83,0 | – | 1,0 | 3,00 | -0,5* | 30 | 50* | 1500 | 0 – 10,0 | 1600 |
| BU84B (BU84B8) | 84,0 | 1,0 | 0,9 | 2,90 | -0,9* | 40 | 100* | 1500 | 0 – 5,0 (8,0) | 1650 |
| BU90HK | 90,0 | 0,2 | 0,8 | 3,20 | -0,3* | 20 | 90* | 1500 | 0 – 5,0 | 1650 |
| BU95K | 95,0 | 0,0 | 0,6 | 3,10 | -0,5* | 15 | 60* | 1500 | 0 – 5,0 | 1750 |
| BU95TMg | 88,0 | 0,4 | 0,7 | 3,00 | -0,8* | 25 | 120* | 1500 | 0 – 5,0 | 1600 |
| BUS80V | 80,0 | 0,8 | 0,7 | 2,70 | -0,2* | 25 | 80* | 1500 | 0 – 5,0 | 1650 |
| BUS80B | 80,0 | 0,9 | 0,4 | 2,70 | 0,3* | 25 | 60* | 1500 | 0 – 5,0 | 1650 |
| BB85Mg | 8,0 | 1,0 | 1,8 | 2,60 | -1,6* | 40 | 45 | 1500 | 0 – 8,0 | 1600 |
* – after heating
Identification marking of refractory castables:
| a | b | c | d | e | f |
|---|---|---|---|---|---|
| B | N | S | 30 | SiC B | |
| B | N | 75 | B | X | |
| B | N | O | 82 | B | |
| B | U | S | 80 | V | |
| BB | B | S | 85 | Mg |
- a. B – refractory castable
- b. N – low cement castable
U – ultra low cement castable
B – no cement castable - c. S – self-flowing
O – repairs - d. 80 – Al2O3 content in %<
BNS30BSiC – content of SiC in % - e. L – calcinated fire-clay-based
A – andalusite-based
V – high-alumina aggregate-based
B – bauxite-based
HK – brown-fused alumina-based
K – corundum-based
T – tabular-alumina-based
BSiC – SiC-based with bauxite
SiCC – SiCC-based - f. X – for special use
Other quality features to be agreed between the customer and the supplier.