Product description
High heat fire brick is a kind of middle grade Fire brick among the stereotyped products of refractory materials. It belongs to neutral refractory materials and is used in the lining of industrial kilns.
From the perspective of high heat fire brick, if the aluminum content exceeds 48%, they can be called high aluminum bricks. There are also high aluminum bricks with different aluminum contents of 55%, 65%, 75%, 80%, and 85%, which can be used in furnace lining at different temperatures. .
Physical and chemical index of high heat fire brick
|
Items |
Index |
|||
|
/ |
CH-LZ75 |
CH-LZ65 |
CH-LZ55 |
CH-LZ48 |
|
Al2O3%≥ |
75 |
65 |
55 |
48+ |
|
CCS/Mpa ≥ |
54 |
49 |
44 |
40 |
|
Apparent porosity/% ≤ |
23 |
23 |
22 |
22 |
|
Refractoriness under load /℃ ≥ |
1520 |
1500 |
1470 |
1420 |
|
Reheating linear change(1500℃,2h) |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4(1450℃.2h) |
|
Refractoriness/℃≥ |
1790 |
1790 |
1770 |
1750 |
Packages:
Physical and chemical index of high heat fire brick
|
Items |
Index |
|||
|
/ |
CH-LZ75 |
CH-LZ65 |
CH-LZ55 |
CH-LZ48 |
|
Al2O3%≥ |
75 |
65 |
55 |
48+ |
|
CCS/Mpa ≥ |
54 |
49 |
44 |
40 |
|
Apparent porosity/% ≤ |
23 |
23 |
22 |
22 |
|
Refractoriness under load /℃ ≥ |
1520 |
1500 |
1470 |
1420 |
|
Reheating linear change(1500℃,2h) |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4(1450℃.2h) |
|
Refractoriness/℃≥ |
1790 |
1790 |
1770 |
1750 |
