Corundum based high strength series refractory castables

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seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-12 16:18
Browse the number: 107
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Product details
Product
Corundum based high strength refractory castables
Corundum spinel based refractory castables
Corundum based high performance refractory castables
Refractory castables for tertiary air duct,bend pipe and gate valve
Brand
JC-17
JC-18
JC-A·AM92
JC-MC18T
JC-TZ20
Maximum service temperature
1600
1700
1750
1750
1750
Bulk density 
(kg/m3)
110?榴imes;24h≥
2900
3000
2900
3000
2700
Chemical composition
(%)
Al2O3
90
92
90
88
70
SiO2
6
4
?M
?M
?M
MgO+CaO≥
?M
?M
6
5
?M
Cold modulus of ruptuer(MPa)
110?榴imes;24h≥
8
10
9
7
6
1100?榴imes;3h≥
12
12
?M
8
7
1350?榴imes;3h≥
12
12
12
12
12
Cold crushing strength(MPa)
110?榴imes;24h≥
80
80
55
60
100
1100?榴imes;3h≥
100
100
?M
70
110
1350?榴imes;3h≥
120
120
85
120
120
Linear change after heating(%)
1100?榴imes;3h≤
-0.1~-0.3
-0.1~-0.3
-0.1~-0.3
-0.1~-0.3
±0.5
1350?榴imes;3h≤
-0.5
-0.5
-0.1~-1.0
-0.1~-0.6
±0.6
Reference water addition for construction(%)
5~6
5~6
5~6
5~6
6~7
Construction method
Vibration
Service area
Areas of high temperature serious abrasion such as front and back kiln mouths,pulverized coal burner,discharge hopper,etc.
Bend pipe,gate valve
Properties
1??JC-MC18T is more suitable to apply in large scale new type dry kilns,and has the best thermal shock resistance and alkali resistance.                                                                                2??Early strengthning agent and explosion-proof agent are added in the corundum based high strength series refractory castables.                                                                       3??Refractory steel fiber can be added as request,and "steel fiber reinforced" should be added in front of the product name and an "F" shall be added behind the brand.For example: the brand of the steel fiber reinforced corundum based high srength refractory castables should be JC-17F.
As the new product of 2008,it can solve the problem of short campaign life in this area.   
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