Corundum thermal insulation products
Corundum thermal insulation products are used in working (unprotected) lining of furnaces not exposed to melts, abrasive forces and mechanical impacts, or in intermediate (protected) insulation.
Physical and chemical parameters
| Parameter name | КТ-1,1 | КТ-1,3 |
|
Mass fraction, %: Al2O3, NLT Fe2O3, NMT SiO2, NMT |
90 1,0 - |
95 0,3 0,5 |
| Apparent density, g/cm3, NMT | 1,1 | 1,3 |
| Residual change in dimensions, %, NMT, at temperature, °C |
1,1 1550 |
0,8 1500 |
| Compressive strength, N/mm², NLT | 2,5 | 3,5 |
| Thermal conductivity coefficient, W/(m·K), NMT, at average temperature 350±25 °C | 0,55 | 0,8 |
| Recommended maximum operating temperature, °C | 1550 | 1500 |
Note to the table:
A reduction in the compressive strength value by 0.5 N/mm2 is permitted for the KT-1.3 grade products with dimensions exceeding 250 mm x 124 mm x 75 mm for at least two parameters.
Regulatory documentation: GOST 5040
The shape and dimensions of products according to GOST 8691, the shape and dimensions of products according to the customer drawings shall be agreed upon between the manufacturer and the consumer.
KT-1,1; KT-1,3 grades: Nos.1-5, 7, 8, 9-19, 20-30, 31, 32, 33-39, 41, 44-50, 51-59 - dimensions according to GOST 8691.
KT-1,1; KT-1,3 grades: NT 122, 136, 137, 138, 139, NT 145-153, (exceptionally complex shape) – special orders according to customer drawings.
KT-1,1; KT-1,3 grades: Nos. 6, 103-109 - dimensions according to GOST 8691.
Contact us
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