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Chromite Ores
Ferrochromium alloy smelting of chromite ores
Grade |
Cr2O3
% |
Chrome/Iron Ratio |
P
% |
S
% |
SiO2
% |
Application |
Cr2O3
(FeO) |
Cr2O3
TFe |
Ⅰ |
≥ 50 |
＞ 3 |
＞ 3.85 |
— |
— |
＜ 1.2 |
For Ferric Nitride |
Ⅱ |
≥ 45 |
≥ 2.5 ~ 3 |
≥ 3.2 ~3.85 |
＜ 0.03 |
＜ 0.05 |
＜ 6 |
Chromic Iron with low,middle and high carbon |
Ⅲ |
≥ 40 |
≥ 2.5 |
≥ 3.2 |
＜ 0.07 |
＜ 0.05 |
＜ 6 |
Carbon Chrome Iron For Arch Furnace |
Ⅳ |
≥ 32 |
≥ 2.5 |
≥ 3.2 |
＜ 0.07 |
＜ 0.05 |
＜ 6 |
Carbon Chrome Iron For Blast Furnace |
Specifications of Chrome Ore for Refractory Materials
Grade |
Chemical Component ， % |
Application |
Cr2O3 |
SiO2 |
CaO |
1 st Grade |
≥ 35 |
≤ 8 |
≤ 2 |
For Natural Refractory Material |
| 2 nd Grade |
≥ 30 ~32 |
≤ 11 |
≤ 3 |
Chrome Brick, Magnesia chrome Brick |
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