Flow Control / Subentry Nozzles
Slab SEN Prem Subentry Nozzles
Slab SEN Prem is the 70% Al₂O₃ grade in Shanker Agencies’ subentry nozzles range, rated for continuous service to 1600°C.
Slab SEN Prem technical specification
Typical values for Slab SEN Prem subentry nozzles. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
| Property | Slab SEN Prem |
|---|---|
| Al₂O₃ content | 70% |
| Carbon content | 18% |
| ZrO₂ insert | 95% |
| Typical service life | 2 sequences |
| Max service temperature | 1600°C |
Grade designations and equivalents
How Slab SEN Prem is referenced across Indian and export naming conventions.
| SAPL grade code | Slab SEN Prem |
| Alumina content | 70% Al₂O₃ |
| Max service temperature | 1600°C |
Where Slab SEN Prem is used
Full subentry nozzles range
Compare Slab SEN Prem against every grade SAPL stocks in this family.
| Grade | Al₂O₃ content | Carbon content | ZrO₂ insert | Typical service life | Max service temperature |
|---|---|---|---|---|---|
| Slab SEN Std | 65% | 20% | 90% | 1 sequence | 1600°C |
| Slab SEN Prem | 70% | 18% | 95% | 2 sequences | 1600°C |
| Fused Silica | - | — | — | 1 sequence | 1500°C |
Installation notes
- 1Pre-heat SEN to 1000–1100°C using dedicated SEN pre-heater (minimum 45 minutes)
- 2Never cold-insert SEN into liquid steel, thermal shock will crack it immediately
- 3Align SEN centrally in mould, offset causes asymmetric flow and quality problems
- 4Apply anti-oxidation paste to upper flange and tundish bottom nozzle interface
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.