Fireclay bricks is Al2O3 content of 42% to 45% aluminum silicate clay material products, with 50% clay and 50% soft hard clay clinker, As the size requirements for certain ingredients, after forming, drying, firing at a high temperature of 1300 ~ 1400 ℃. temperature of 1300 ~ 1400 ℃. common brick, special-shaped brick. They are widely applied in coke oven, blast furnance, air stove, molten steel ladel, gating system, boiler, cement kiln, glass kiln, kinds of
kiln lining and thermal equipment.
Main Properties:
Item |
Index |
||||
Code |
DL-48 |
DL-55 |
DL-65 |
DL-70 |
DL-75 |
Al2O3 min, % |
48 |
55 |
65 |
70 |
75 |
Refractoriness, min |
1790 |
1793 |
1760 |
1770 |
1780 |
Refractoriness under load (0.2MPa) , min |
1360 |
1380 |
1390 |
1400 |
1410 |
Linear change after reheating(1550, 2h) % |
0 ~ -0.6 |
0 ~ -0.55 |
0 ~ -0.3 |
0 ~ -0.3 |
0 ~ -0.3 |
Apparent porosity max, % |
22 |
21 |
20 |
20 |
19 |
Cold crushing strength Mpa, min |
40 |
45 |
50 |
55 |
60 |