Carbon compound bricks

Update: 2015/11/15      View:
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Introduction

This product is characterized by iron corrosion resistance, alklali corrosion and slag corrosion resistance of the traditional ceramic cup as well as high thermal conductivity of the carbon bricks, which is being used for BF ceramic cup, tuyere, iron notch and slag notch as a new kind of refractory. 

Index
Item
CA-1
CA-2
Al2O3 , %
≥70
≥75
T.C , %
≥9
≥9
Bulk density , g/cm3
≥2.7
≥2.85
Apparent porosity ,%
≤16
≤15
Common compressive strength , MPa
≥55
≥60
Permeability, mDa
≤1.0
≤0.8
Average pore size, µm
≤1
≤1
<1µm Pore volume, %
≥70
≥70
Corrosion index to hot metal, %
≤2.0
≤2.0
Oxide rate , %
≤1.0
≤1.0
Slag corrosion ratio, %
≤3
≤2
Thermal conductivity (200℃) , W/mk
≥12
≥15

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