Henan Hongtai Kiln Refractory Co.,Ltd. |
Verified Suppliers
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Item | HT-GG90 | HT-GG90 | HT-GG90 | HT-GG90 | HT-GG90 | HT-GG90 |
Cr2O3 % | ≥93 | ≥86 | ≥60 | ≥30 | ≥12 | ≥3 |
Al2O3 % | - | - | ≤38 | ≤68 | ≤80 | ≤90 |
Fe2O3 % | - | - | ≤0.2 | ≤0.2 | ≤0.5 | ≤0.5 |
Apparent porosity % | ≤17 | ≤17 | ≤14 | ≤16 | ≤18 | ≤16 |
Bulk Density g/cm3 | ≥4.3 | ≥4.2 | ≥3.63 | ≥3.53 | ≥3.3 | ≥3.25 |
Cold compressive strength, Mpa | ≥100 | ≥100 | ≥130 | ≥130 | ≥120 | ≥120 |
Refractoriness under load ℃,(0.2MPa,0.6%) | ≥1680 | ≥1670 | ≥1700 | ≥1700 | ≥1700 | ≥1700 |
Linear change rate % (1600℃×3h) | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 |