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B5 insulation firebrick

B5 insulation  firebrick

 

B5 series of insulation firebricks are produced in accordance with JIS(Japanese Industrial Standard) specially for export to Japan, Korea and East-south Asia areas, the materials widely used in the insulating layers of cermic kiln, heat stove, heater kiln, glass furnace and so on, some kinds of the products can contact the fire directly.

 
Item
Test Tem. When reheated with 2% contracting rete(℃)
 
Bulk Density
(g/cm3)
Cold Crush Stength (kgs/cm2)
 
Thermal conductivity at 350±25℃(w/m.k)
 
 
 
Series A
A1
900
≤0.5
≥5
≤0.13
A2
1000
≤0.5
≥5
≤0.14
A3
1100
≤0.5
≥5
≤0.15
A4
1200
≤0.55
≥8
≤0.16
A5
1300
≤0.60
≥8
≤0.17
A6
1400
≤0.70
≥10
≤0.20
A7
1500
≤0.75
≥10
≤0.22
 
 
 
Series B
B1
900
≤0.70
≥25
≤0.17
B2
1000
≤0.70
≥25
≤0.18
B3
1100
≤0.75
≥25
≤0.20
B4
1200
≤0.80
≥25
≤0.22
B5
1300
≤0.80
≥25
≤0.23
B6
1400
≤0.90
≥30
≤0.27
B7
1500
≤1.00
≥30
≤0.31
 
Series C
C1
1300
≤1.10
≥50
≤0.30
C2
1400
≤1.20
≥70
≤0.38
C3
1500
≤1.25
≥100
≤0.45