Unshaped Refractories / Insulating Castables
CII 107 M (CUMI) Insulating Castables
CII 107 M (CUMI) is the 35% (typical) Al₂O₃ grade in Shanker Agencies’ insulating castables range, rated for continuous service to 1350°C.
CII 107 M (CUMI) technical specification
Typical values for CII 107 M (CUMI) insulating castables. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
Where CII 107 M (CUMI) is used
Is CII 107 M (CUMI) right for your application?
- Rated for continuous service up to 1350°C.
Compare CII 107 M (CUMI) with other grades▾
Compare CII 107 M (CUMI) against every grade SAPL stocks in this family.
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| Grade | Al₂O₃ content | Bulk density | Cold crushing strength | Plc | Thermal conductivity | Max service temperature | Application |
|---|---|---|---|---|---|---|---|
| CIP 103 (CUMI, Perlite-Based) | 40% min | 0.90 g/cc max @110°C/48hr | 20 / 10 / 10 Kg/cm² @110 / 1000 / 1200°C (3hr fired) | ±0.5 / ±0.9 / ±1.2% @800 / 1100 / 1300°C | - | 1250°C | Lightest, most economical grade; general backup insulation |
| CII 107 M (CUMI)this grade | 35% (typical) | 1.60 g/cc max @110°C/24hr | 90 / 60 / 70 Kg/cm² @110 / 1100 / 1300°C (3hr fired) | ±0.2 / ±1.0% @1100 / 1300°C | 0.51 W/m·K max @500°C hot face | 1350°C | General-purpose insulating aggregate castable, balance of strength and insulation |
| Cumicrete HT (CUMI) | 58% min | 1.55 g/cc max @110°C/48hr | 80 / 40 / 50 Kg/cm² @110 / 1100 / 1300°C (3hr fired) | ±0.5 / ±1.5% @800 / 1300°C | 0.45 / 0.60 W/m·K @500 / 1000°C hot face | 1500°C | Higher-temperature insulating castable for hotter backup zones |
| CA 58 (CUMI, Bubble Alumina) | 94% min | 1.45 g/cc max @110°C/24hr | 90 / 75 / 100 Kg/cm² @110 / 1000 / 1550°C (3hr fired) | ±0.2 / ±0.5% @1000 / 1550°C | 1.1 / 1.0 / 0.9 W/m·K @540 / 815 / 1000°C hot face | 1800°C | Bubble-alumina, very low silica, highest temperature; hydrogen atmosphere and reformer duty |
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Request CII 107 M (CUMI) QuoteGrade designations & equivalents▾
How CII 107 M (CUMI) is referenced across Indian and export naming conventions.
| SAPL grade code | CII 107 M (CUMI) |
| Alumina content | 35% (typical) Al₂O₃ |
| Max service temperature | 1350°C |
Installation notes
- 1Vibratory cast is the standard method for all Cumicrete insulating grades; hand-pack only in confined areas per grade guidance
- 2Water addition varies widely by grade, 18–25% for CA 58 up to 45–60% for CIP 103, always follow the specific grade's datasheet, not a blanket figure
- 3Never substitute a dense-castable water ratio for an insulating grade, over-wetting collapses the lightweight aggregate structure and destroys the insulation value
- 4Cure and dry out on a controlled schedule before first heat-up; trapped moisture in any cast lining risks explosive spalling
- 5CA 58 (low-silica, bubble alumina) is specified where the atmosphere is hydrogen or strongly reducing, do not substitute a standard-silica grade in that duty
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.