Unshaped Refractories / Ramming Mass
Alumina Ramming Mass
Alumina is the 82-92% Al₂O₃ grade in Shanker Agencies’ ramming mass range, rated for continuous service to 1750°C.
Alumina technical specification
Typical values for Alumina ramming mass. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
Where Alumina is used
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- Rated for continuous service up to 1750°C.
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Compare Alumina against every grade SAPL stocks in this family.
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| Grade | Al₂O₃ content | MgO content | Bulk density | Application | Max service temperature |
|---|---|---|---|---|---|
| Silica | - | - | 1.90 g/cc | Cast iron induction furnace | 1650°C |
| Aluminathis grade | 82-92% | up to 12.5% | 2.70-2.92 g/cc | Steel induction furnace, stainless steel | 1750°C |
| Magnesia | - | 85-95% | 2.90 g/cc | Basic/alloy steel furnaces | 1750°C |
| Acidic | - | - | 1.85 g/cc | Non-ferrous / cast iron | 1600°C |
| Dolomite | - | 35-58% | - | AOD and ladle back-filling, knuckle joints, well block surround | 1700°C |
Send the drawing, dimensions, application and quantity for Alumina ramming mass. Our technical team reviews the requirement and advises on grade and fulfilment route.
Request Alumina QuoteGrade designations & equivalents▾
How Alumina is referenced across Indian and export naming conventions.
| SAPL grade code | Alumina |
| Alumina content | 82-92% Al₂O₃ |
| Max service temperature | 1750°C |
Installation notes
- 1Clean furnace shell and apply one coat of release agent before ramming
- 2Ram in 50–75 mm layers using the correct pattern (spiral from bottom up)
- 3Each layer must be uniformly compacted, check with density gauge if available
- 4For induction furnaces: sinter with a gradual heat-up using scrap metal charge
- 5First heat: fill with metal charge, heat slowly to operating temperature, do not tap
- 6Typical sintering cycle: 4–8 hrs at full power to form a glassy bonded shell
Disclaimer: values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published manufacturer specifications. They are indicative, not a guarantee. Confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.