Fireclay Refractory brick SK-34
Features
1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely
Typical Applications
1. Furnaces of metallurgy industry, heat treatment furnace.
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace.
Standard sizing: 230 X 114 X 65 mm others up to the client
Refractory brick SK-34
Item Standard
AI2O3(%) 38-40
Fe2O3 (%) 1.5-2.5
Refractoriness (SK) 34
Refractoriness under load, 0.2MPa, Ta, (° C) 1350
Porosity (% 19-23
Bulk density (g/cm³ ) 2.10-2.20
Cold crushing strength (MPa) 25-35
Thermal expansion at 1000° C (%) 0.6
|
Item/Grade |
Fire Clay Brick |
High Alumina Brick |
|
SK-30 |
SK-32 |
SK-34 |
SK-35 |
SK-36 |
SK-37 |
SK-38 |
SK-40 |
|
AL 2 O 3 % (≥) |
30 |
35 |
38 |
45 |
55 |
65 |
70 |
82 |
|
Fe 2 O 3 % (≤) |
2.5 |
2.5 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
Refractoriness(SK) |
30 |
32 |
34 |
35 |
36 |
37 |
38 |
40 |
|
Refractoriness under load, 0.2MPa, °C (≥) |
1250 |
1300 |
1360 |
1420 |
1450 |
1480 |
1530 |
1600 |
|
Apparent porosity (%) |
22-26 |
22-26 |
20-24 |
20-22 |
20-23 |
20-23 |
20-22 |
18-20 |
|
Bulk density (g/cm³) |
1.9-2.0 |
1.95-2.1 |
2.1-2.2 |
2.15-2.22 |
2.25-2.4 |
2.3-2.5 |
2.4-2.6 |
2.5-2.7 |
|
Cold crushing strength ,MPa (≥) |
20 |
25 |
30 |
40 |
45 |
50 |
60 |
70 |
North Refractories Co. Ltd (NRCL) was founded by Mr Sun from 15 years ago and from the year 2007 we started our exporting business via our sales company Beijing North Refractories Co. Ltd, we focus on refractory and heat insulation materials manufacturing, serving for wide range industries where high temperatures exist. Such as steel & iron, aluminum, glass industry, ceramics, power plant, petrochemical, foundry industries and so on.
Main product list:
CALCIUM SILICATE INSULATION MATERIALS: Calcium silicate pipe section, calcium silicate 650C, calcium silicate 1000C, calcium silicate block 1100C, super calcium silicate, high density calcium silicate insulation shapes, non-wetting calcium silicate, water proof calcium silicate board, carbon fiber reinforced calcium silicate, glass fiber reinforced calcium silicate.
CERAMIC FIBER INSULATION: Ceramic fiber blankets, ceramic fiber boards, ceramic fiber modules, ceramic fiber bulk, ceramic fiber papers, ceramic fiber felt, ceramic fiber top out cone, ceramic fiber special shapes, ceramic fiber binders, ceramic fiber coatings.
ECO FIBER INSULATION MATERIALS: Soluble fiber blankets, soluble fiber board, soluble fiber paper
REFRACTORY BRICKS: High alumina refractory bricks, SiC bricks, Fused Cast Refractory Bricks.
