Acid-Resistance,Alkali-Resistance,Low pore Bricks

 

Item

Properties
Al2O3% ¡Ý
SiO2% ¡Ý
Fe2O3% ¡Ý
Apparent Porosity % ¡Ý
High Temperature Crushing Strength Mpa ¡Ü
0.2MPa Refractoriness under load ¡ãC¡Ý
Refractoriness ¡ãC¡Ý
Permanent linear change % 1450¡ãC¡Á2h
Thermal shock resistances 1100¡ãC
Thermal conductivity (700¡À10¡ãC)W/M.K¡Ü
Alkali-Resistance Bricks
Ordinary type NJ-30
25-30
60-70
2.0
25
20
1350
1650
¡À0.1-1.0
(1350¡Á2h)
1.2
High strength type RK-H
25-30
65-70
2.0
20
60
1200
1550
1.4
RK-A
30-35
60-65
2.5
25
30
1400
1700
1.3
Insulating type
CB-20
30-35
60-67
2.0
33
15
1250
1650
0.7
CB-30
30-35
55-65
2.0
30
20
1250
1670
0.75
LOW PORE FIRECLAY BRICKS
DN-16
42
1.8
16
50
1450
-0.4 ~ +0.1
DN-14
42
1.5
14
60
1480
-0.2 ~ 0
DN-12
45
1.2
12
70
1500
-0.1 ~ 0
DN-10
45
1.0
10
75
1520
-0.1 ~ 0
Acid-Resistance Bricks Inhaling water % Cold Crushign Strength Mpa ¡Ý Acid-resistance degrees %
Thermal shock resistance
200¡ãC
250¡ãC
Grade one
5.0
80
99.7
No spalling
Grade two
8.0
60
99.7
No spalling

Alkali-Resistame Bricks

Acid-Resistame Bricks