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Foundry stopper
※Resist high temperature, acid alkaline and oxidation.
※Stable quality, good cold-thermal strengthen, meet the requirements of transportation, installation and usage.
※Supply several kinds design of stopper head, from the hemispherical, multi curvature to the cone, can control the flow of high temper molten steel correctly and effectively.
※Excellent anti-oxidation coating makes carbon rods from oxidation at 550-1500℃ to ensure the service life of carbon rods.
※Meet special requirements of carbon rods for customers.
Specification
| Items | specification | |
| Chemical Composition (%) | Al2O3 | ≥45.0 |
| C | ≥27.0 | |
| Bulk Density(g/cm3) | ≥2.50 | |
| Apparent Porosity(%) | ≤18 | |
| Cold Crushing Strength(MPa) | ≥25 | |
| Modulus of Rupture(MPa) | ≥6.0 | |
Foundry stopper
