SL grade heat insulation products
Refractory thermal insulation products are used in blast furnace production (thermal insulation layer), steel production (heat insulation of ladles), foundry production (thermal insulation furnaces), aluminum production (insulating layer of furnaces), in boiler equipment (boiler lining) production, ceramic industry (insulating layer of furnaces), petrochemical industry (lining of thermal generating units), glass industry (insulating layer of furnace lining).
Physical and chemical parameters
|
Parameter name |
Indicator value for grades |
||||||
| SL 23 | SL 24 | SL 26 | SL 28 | SL 30 | SL 32 | SL 33 | |
|
Mass fraction, %: Al2O3, NLT Fe2O3, NMT |
28 - |
40 2 |
50 2 |
66 1 |
77 1 |
84 1 |
91 0,3 |
| Classification temperature, °C | 1260 | 1380 | 1420 | 1510 | 1620 | 1760 | 1800 |
| Apparent density, g/cm3, NMT | 0,45 | 0,68 | 0,86 | 0,96 | 1,09 | 1,2 | 1,4 |
|
Residual change in linear dimensions, %, NMT, at temperature, °C |
2,0 1260 |
2,0 1380 |
2,0 1420 |
2,0 1510 |
2,0 1620 |
1,5 1620 |
1,0 1620 |
| Compressive strength, N/mm², NLT | 1,2 | 1 | 1,7 | 2,3 | 3,9 | 6 | 5 |
|
Thermal conductivity coefficient, W/(m·K), NMT, at average temperature 200 °C 350 °C 600 °C 800 °C |
0,149 0,191 0,238 0,267 |
0,194 0,211 0,240 0,270 |
0,205 0,245 0,290 0,300 |
0,261 0,285 0,302 0,330 |
0,340 0,360 0,380 0,410 |
0,350 0,400 0,460 0,500 |
0,390 0,450 0,460 0,500 |
When determining the appearance indicators of products, the presence of traces of adjustment on the surface is not a rejection feature, since adjustment of products is provided for by the process.
Stains are allowed on product surface.
Regulatory documentation: STO 05802307-0-002-2024
Grades SL 23, SL 24, SL 26, SL 28, SL 30, SL 32, SL 33: Nos. 2, 5, 6, 8, 17, 22, 23, 25, 26, 44, 45, 47, 48.
Shape and dimensions according to GOST 5040 respectively of ShT-0,4 grade and the customer drawings, agreed between the manufacturer and the consumer.
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How to order
To place an order for the product supply, please do the following:
- On your company's letterhead, fill out an application, which shall include:
- name of the requested product (or technical specifications thereof),
- required amount,
- estimated delivery time,
- contact details.
- When ordering non-standard products (according to drawings), please attach the drawings of the requested product and indicate the dimensional tolerances.
- The completed application and drawings can be sent:
- by email: tdom@slsoz.ru
- by fax: (34373) 64 3 42; 64 4 63
- or use the feedback form on the right