Refractory products for laying of air heaters and hot blast air ducts of blast furnaces
The products are intended for laying air heaters, hot blast air ducts, and tuyere zones of blast furnaces.
Physical and chemical parameters
|
Parameter name |
Indicator value for grades |
||||||
|
ShV-28 |
ShVU-28 |
ShV-37 |
ShV-42 |
ShVU-42 |
MKRV-50 |
MKV-72 |
|
|
Mass fraction, %: Al2O3, NLT Fe2O3, NMT |
28 - |
28 - |
37 - |
42 1,7 |
42 1,7 |
50 1,4 |
over 72 1,2 |
| Refractoriness, °C, NLT |
1670 |
1670 |
1730 |
1750 |
1750 |
- |
- |
|
Residual change in dimensions, %, NMT, at temperature, °C |
minus 0,5 1350 |
minus 0,5 1350 |
minus 0,2 1350 |
minus 0,4 1450 |
minus 0,4 1450 |
minus 0,4 1500 |
minus 0,8 1600 |
|
Open porosity, %, for products: packing: NMT within wall, dome, for air ducts, nozzles, tuyere zones: NMT within |
25 -
27 - |
24 -
25 - |
23 -
25 - |
- 14-20
- 14-20 |
- 14-20
- 14-20 |
21 -
23 - |
21 -
24 - |
|
Compressive strength, N/mm², NLT, for products: packing wall, dome, for air ducts, nozzles, tuyere zones |
15 15 |
20 20 |
20 20 |
40 30 |
40 40 |
40 30 |
50 30 |
| Softening onset temperature, °C, NLT |
1270 |
1270 |
1330 |
1500 |
1500 |
1540 |
1550 |
Regulatory documentation: GOST 20901
Grades: ShV-28, ShVU-28, ShV-37, ShV-42, ShVU-42, MKRV-50, MKV-72: Nos. 1, 2, 3, 7, 9, 11, 87.
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