Submerged Entry Nozzle
Application Industry: Refractories for Steel Industry
Application Equipment: Continuous Casting Machine for Molten Steel Delivery
Size: Custom submerged entry nozzle geometry per continuous casting machine design (free engineering on request)
Products Overview
Our Submerged Entry Nozzle is a high-performance refractory product engineered for continuous casting machine for molten steel delivery. We can provide outside stationed, quick exchangeable, monolithic submerged nozzles, nozzle for thin slab casting, and anti-clogging submerged nozzles. This series of products are proven to be better on corrosion and erosion resistance and on thermal shock resistance.
The Submerged Entry Nozzle product family is offered in two engineering-proven RZ and RS chemistry grades with two material systems. The CH-RZT grade (Al2O3-(ZrO2)-C(+SiC) based) is the standard variant with Al2O3 content minimum 45%-55% and ZrO2 content minimum 70% for slag line, engineered for general continuous casting service. The CH-RS grade (fused silica based) is the high-purity silica variant with Al2O3 content minimum 65% and MgO content minimum 99% for sliding plate surface, engineered for high-purity continuous casting service. The product family features four-part design: body, slag line, steel-tapping hole, and bowl, with engineering-proven good corrosion resistance, erosion resistance, and thermal shock resistance.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Submerged Entry Nozzle grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for the Steel Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from Al2O3-(ZrO2)-C(+SiC) and fused silica based formulations with high-purity raw materials
- Engineering-proven good corrosion and erosion resistance for continuous casting steel delivery service
- Outside stationed, quick exchangeable, monolithic submerged nozzles, nozzle for thin slab casting, and anti-clogging submerged nozzles available
- Multi-part design: body, slag line, steel-tapping hole, and bowl for different service zones in continuous casting
- Two RZ and RS chemistry grades covering Al2O3-(ZrO2)-C and fused silica material systems for matching different continuous casting requirements
Product Specification
Submerged entry nozzle is engineered per buyer’s continuous casting machine design. Custom chemistry and geometry available on request.
We can provide outside stationed, quick exchangeable, monolithic submerged nozzles, nozzle for thin slab casting and anti-clogging submerged nozzles. This series of products are proven to be better on corrosion and erosion resistance and on thermal shock resistance.
| Brands | CH-RZT | CH-RS | ||||
|---|---|---|---|---|---|---|
| Items | Al2O3-(ZrO2)-C(+SiC) | Fused silica | ||||
| Part | Body | Slag line | Steel-tapping hole | Bowl | Upper surface | – |
| Al2O3 (%) | ≥ 45 | – | ≥ 55 | – | ≥ 65 | – |
| ZrO2 (%) | – | ≥ 70 | – | – | – | – |
| MgO (%) | – | – | – | ≥ 65 | – | ≥ 99 |
| SiO2 (%) | – | – | ≤ 8 | – | – | – |
| C+SiC (%) | ≥ 28 | ≥ 13 | ≥ 18 | ≥ 11 | ≤ 15 | – |
| Bulk density (g/cm³) | ≥ 2.40 | ≥ 3.50 | ≥ 2.35 | ≥ 2.65 | ≥ 2.80 | ≥ 1.75 |
| Apparent porosity (%) | ≤ 18 | ≤ 17 | ≤ 18 | ≤ 17 | ≤ 16 | ≤ 18 |
| Cold crushing strength (MPa) | ≥ 22 | ≥ 20 | ≥ 22 | ≥ 20 | ≥ 25 | ≥ 25 |
| Modulus of rupture (MPa) | ≥ 6 | ≥ 5 | ≥ 7 | ≥ 5 | ≥ 7 | – |
Note: Nine performance parameters specified per PDF source: Al2O3 content, ZrO2 content, MgO content, SiO2 content, C+SiC content, Bulk Density, Apparent Porosity, Cold Crushing Strength, and Modulus of Rupture. Two CH-RZT and CH-RS chemistry grades engineered for continuous casting machine molten steel delivery service in two material systems: Al2O3-(ZrO2)-C(+SiC) and Fused silica. The CH-RZT grade features 5 parts (body, slag line, steel-tapping hole, bowl, upper surface). For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
Submerged Entry Nozzle is a high-performance refractory product manufactured from Al2O3-(ZrO2)-C(+SiC) and fused silica based formulations with high-purity raw materials, engineered for continuous casting machine for molten steel delivery. The product family features good corrosion and erosion resistance and thermal shock resistance. We can provide outside stationed, quick exchangeable, monolithic submerged nozzles, nozzle for thin slab casting, and anti-clogging submerged nozzles for different continuous casting requirements.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Continuous Casting Machine Molten Steel Delivery of small, medium-size, and large continuous casting machines in steelmaking operations.
Specific Application Zones: The CH-RZT grade (Al2O3-(ZrO2)-C(+SiC) based) features Al2O3 content minimum 45%-55% and ZrO2 content minimum 70% for slag line, with C+SiC content minimum 11%-28% for general continuous casting service. The CH-RS grade (fused silica based) features Al2O3 content minimum 65% and MgO content minimum 99% for sliding plate surface, with C content maximum 15% for high-purity continuous casting service. The product family delivers Bulk Density minimum 1.75 to 3.50 g/cm³, Apparent Porosity maximum 17% to 18%, Cold Crushing Strength minimum 20 to 25 MPa, and Modulus of Rupture minimum 5 to 7 MPa, with four-part design for body, slag line, steel-tapping hole, and bowl service zones.
CH Refractories is a Submerged Entry Nozzle manufacturer in China, Henan, Zhengzhou. The complete Submerged Entry Nozzle product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Refractories for the Steel Industry customers across the global iron and steel value chain.
