It has high bulk density, low porosity and low creep under load at high temperature, it can be used as lining materials in anode bake furnace.
|
ITEM |
Unit |
CM-LR-S |
CM-LR-1 |
CM-LR-2 |
TEST METHOD |
|
AI2O3 |
% |
≥42 |
≥42 |
≥40 |
GB 6900 |
|
Fe2O3 |
% |
≤1.0 |
≤1.8 |
≤2.0 |
GB 6900 |
|
K2O+Na2O |
% |
≤0.6 |
≤0.8 |
≤1.2 |
GB 6900 |
|
CaO+MgO |
% |
≤0.6 |
≤0.7 |
≤1.0 |
GB 6900 |
|
Apparent porosity |
% |
≤16 |
≤19 |
≤19 |
GB/T2997-2000 (ISO5017-1988) |
|
Bulk density |
g/cm3 |
≥2.35 |
≥2.2 |
≥2.2 |
GB/T2997-2000 (ISO5017-1988) |
|
Cold crushing strength |
MPa |
≥40 |
≥40 |
≥30 |
GB/T5072-2008 (ISO10059-1-1992) |
|
Folding strength at 12000C*0.5hours |
Mpa |
≥10 |
≥10 |
- |
GB/T3002-2004 (ISO5013-1985) |
|
Folding strength at 13500C*0.5hours |
Mpa |
≥6 |
≥4 |
- |
GB/T3002-2004 (ISO5013-1985) |
|
Refractoriness under load 2Kg5/cm3 |
0C |
≥1450 |
≥1450 |
≥1410 |
GB/T5989-1998 (ISO1893-2005) |
|
Creep at 12800C from 0 to 25hrs under load of 0.2Mpa, |
% |
≤0.4 |
≤0.4 |
≤0.5 |
GB/5073-2005 (ISO3187-1989) |
|
Reheating linear change |
% |
+0.1~0.2 (14500C,2h) |
+0.1~0.2 (14500C,2h) |
+0.1~0.2 (14000C,2h) |
(ISO2478-1987) |
|
Thermal expansion between 20C 0-10000C |
% |
≤0.7 |
≤0.7 |
≤0.7 |
GB/T7320-2008 (EN993-19:2004) |