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Sleeve Brick ,stopper Brick ,Nozzle Brick
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Features:
1. High fire resistance.
2. Good thermal shock risistance.
3. Good wear resistance and crack resistance.
4. Good corrosion resistance.
5. Won't pollute the molten steel.
6. Regular shape,precise size and smooth runner.
Teachnical Data:
Item/Grade NO. | SK-34 | SK-35 | SK-36 | SK-37 | SK-38 | |
Chemical Analysis (%) | AL2O3 | 38-42 | 45-50 | 50-55 | 60-65 | 70-75 |
Fe2O3 ≤ | 2.5 | 2.0 | 2.0 | 2.0 | 2.0 | |
Refractoriness | SK | 34 | 35 | 36 | 37 | 38 |
°C | 1750 | 1770 | 1790 | 1825 | 1850 | |
Refractoriness under load, 0.2MPa, (°C) ≥ | 1400 | 1450 | 1500 | 1530 | 1560 | |
Apparent porosity (%) ≤ | 22 | 22 | 23 | 23 | 22 | |
Bulk density (g/cm³) | 2.1～2.2 | 2.2～2.3 | 2.2～2.4 | 2.3～2.6 | 2.4～2.6 | |
Cold crushing strength (kg/cm2) ≥ | 350 | 400 | 450 | 500 | 550 | |
Thermal expansion at 1000°C (%) | 0.4～0.6 | 0.5～0.7 | 0.5～0.7 | 0.5～0.7 | 0.5～0.7 | |
Application:
They are mainly used in flat plate casting of various steel grades (including stainless steel and alloy steel).
Features:
1. High fire resistance.
2. Good thermal shock risistance.
3. Good wear resistance and crack resistance.
4. Good corrosion resistance.
5. Won't pollute the molten steel.
6. Regular shape,precise size and smooth runner.
Teachnical Data:
Item/Grade NO. | SK-34 | SK-35 | SK-36 | SK-37 | SK-38 | |
Chemical Analysis (%) | AL2O3 | 38-42 | 45-50 | 50-55 | 60-65 | 70-75 |
Fe2O3 ≤ | 2.5 | 2.0 | 2.0 | 2.0 | 2.0 | |
Refractoriness | SK | 34 | 35 | 36 | 37 | 38 |
°C | 1750 | 1770 | 1790 | 1825 | 1850 | |
Refractoriness under load, 0.2MPa, (°C) ≥ | 1400 | 1450 | 1500 | 1530 | 1560 | |
Apparent porosity (%) ≤ | 22 | 22 | 23 | 23 | 22 | |
Bulk density (g/cm³) | 2.1～2.2 | 2.2～2.3 | 2.2～2.4 | 2.3～2.6 | 2.4～2.6 | |
Cold crushing strength (kg/cm2) ≥ | 350 | 400 | 450 | 500 | 550 | |
Thermal expansion at 1000°C (%) | 0.4～0.6 | 0.5～0.7 | 0.5～0.7 | 0.5～0.7 | 0.5～0.7 | |
Application:
They are mainly used in flat plate casting of various steel grades (including stainless steel and alloy steel).
