Flow Control / Subentry Nozzles
Fused Silica Subentry Nozzles
Fused Silica is the — Carbon grade in Shanker Agencies’ subentry nozzles range, rated for continuous service to 1500°C.
Fused Silica technical specification
Typical values for Fused Silica subentry nozzles. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.
| Property | Fused Silica |
|---|---|
| SiO₂ content | 97% |
| Carbon content | — |
| ZrO₂ insert | — |
| Typical service life | 1 sequence |
| Max service temperature | 1500°C |
Grade designations and equivalents
How Fused Silica is referenced across Indian and export naming conventions.
| SAPL grade code | Fused Silica |
| Max service temperature | 1500°C |
Where Fused Silica is used
Full subentry nozzles range
Compare Fused Silica against every grade SAPL stocks in this family.
| Grade | SiO₂ content | Carbon content | ZrO₂ insert | Typical service life | Max service temperature |
|---|---|---|---|---|---|
| Slab SEN Std | - | 20% | 90% | 1 sequence | 1600°C |
| Slab SEN Prem | - | 18% | 95% | 2 sequences | 1600°C |
| Fused Silica | 97% | — | — | 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.