Ladle Shroud
Application Industry: Refractories for Steel Industry
Application Equipment: Continuous Casting Machine for Ladle to Tundish Steel Transfer
Size: Custom ladle shroud geometry per continuous casting machine design (free engineering on request)
Products Overview
Our Ladle Shroud is a high-performance refractory product engineered for continuous casting machine for ladle to tundish steel transfer. CH Refractories can design and produce pre-heating required and pre-heating free shrouds according to the site needs and condition of steel mill. CH Refractories can also provide non-protective fired and pre-heating free shroud. Under special firing process, the shroud generates a de-carbonized layer with micropores, which can give better thermal insulation and also create favorable temperature gradient for better thermal shock resistance and also abrasion resistance. This product is mostly suitable for low and ultra-low steel and alloy steel production in particular.
The Ladle Shroud product family is offered in four engineering-proven CZT and CLT chemistry grades with two part systems and two material types. The pre-heating required type includes CH-CZT-H (Al2O3-C) and CH-CLT-H (Al2O3-C with ZrO2) grades. The pre-heating free type includes CH-CZT (Al2O3-C) and CH-CLT (Al2O3-C with ZrO2) grades. Each grade is engineered for two parts: body and slag line. The CH-CZT-H body grade features Al2O3 content minimum 50% and C+SiC content minimum 22%. The CH-CZT-H slag line grade features Al2O3 content minimum 50% and C+SiC content minimum 22%. The CH-CLT-H body grade features ZrO2 content minimum 50% and C+SiC content minimum 20%. The CH-CLT-H slag line grade features ZrO2 content minimum 50% and C+SiC content minimum 20%. All four grades deliver Bulk Density minimum 2.35 to 3.4 g/cm³, Apparent Porosity maximum 18%, Cold Crushing Strength minimum 20 to 22 MPa, Modulus of Rupture minimum 5 to 6 MPa, and Thermal Shock Resistance minimum 5 cycles for pre-heating required type.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Ladle Shroud 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-C or ZrO2-C based formulations with high-purity raw materials and phenolic resin binder
- Engineering-proven good thermal shock resistance, slag erosion resistance, and steel penetration resistance for continuous casting service
- Pre-heating free type and pre-heating required type available for different steel mill site conditions
- Non-protective fired and pre-heating free shroud generates de-carbonized layer with micropores for better thermal insulation
- Four CZT and CLT chemistry grades with Al2O3-C and ZrO2-C based materials for body and slag line parts for matching different continuous casting steel grade service
Product Specification
Ladle shroud is engineered per buyer’s continuous casting machine design. Custom chemistry and geometry available on request.
| Items | Pre-heating type | Pre-heating free type | ||||||
|---|---|---|---|---|---|---|---|---|
| Brands | CH-CZT-H | CH-CLT-H | CH CZT | CH CLT | ||||
| Part | Body | Slag line | Body | Slag line | Body | Slag line | Body | Slag line |
| Material | Al2O3-C | ZrO2-C | Al2O3-C | Al2O3-C | Al2O3-C | ZrO2-C | Al2O3-C | Al2O3-C |
| Al2O3 (%) | ≥ 50 | – | ≥ 50 | ≥ 60 | ≥ 45 | – | ≥ 45 | ≥ 60 |
| C+SiC (%) | ≥ 22 | ≥ 20 | ≥ 22 | ≥ 20 | ≥ 26 | ≥ 20 | ≥ 26 | ≥ 20 |
| ZrO2 (%) | – | ≥ 50 | – | – | – | ≥ 50 | – | – |
| Bulk density (g/cm³) | ≥ 2.40 | ≥ 3.4 | ≥ 2.40 | ≥ 2.50 | ≥ 2.35 | ≥ 3.40 | ≥ 2.35 | ≥ 2.50 |
| Apparent porosity (%) | ≤ 18 | ≤ 18 | ≤ 18 | ≤ 18 | ≤ 18 | ≤ 18 | ≤ 18 | ≤ 18 |
| Cold crushing strength (MPa) | ≥ 22 | ≥ 20 | ≥ 22 | ≥ 20 | ≥ 20 | ≥ 20 | ≥ 20 | ≥ 20 |
| Modulus of rupture (MPa) | ≥ 6 | ≥ 5 | ≥ 6 | ≥ 6 | ≥ 6 | ≥ 6 | ≥ 6 | ≥ 6 |
| Thermal shock resistance (cycle) | ≥ 5 | ≥ 5 | ||||||
Note: Eight performance parameters specified per PDF source: Al2O3 content, C+SiC content, ZrO2 content, Bulk Density, Apparent Porosity, Cold Crushing Strength, Modulus of Rupture, and Thermal Shock Resistance. Four CZT/CLT chemistry grades engineered for continuous casting machine ladle to tundish steel transfer service in two type systems: Pre-heating required (CZT-H/CLT-H) and Pre-heating free (CZT/CLT). Each grade is engineered for two parts: body and slag line. For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
Ladle Shroud is a high-performance refractory product manufactured from Al2O3-C or ZrO2-C based formulations with high-purity raw materials and phenolic resin binder, engineered for continuous casting machine for ladle to tundish steel transfer. The product family is available in pre-heating required and pre-heating free types according to the site needs and condition of steel mill. The product family can also provide non-protective fired and pre-heating free shroud. Under special firing process, the shroud generates a de-carbonized layer with micropores, which can give better thermal insulation and also create favorable temperature gradient for better thermal shock resistance and also abrasion resistance.
Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.
Target Equipment: Continuous Casting Machine Ladle Shroud of small, medium-size, and large continuous casting machines in steelmaking operations.
Specific Application Zones: The CH-CZT-H (Al2O3-C, Al2O3 content minimum 50%, C+SiC content minimum 22%) and CH-CLT-H (Al2O3-C with ZrO2, ZrO2 content minimum 50%, C+SiC content minimum 20%) are the pre-heating required types engineered for general continuous casting service. The CH-CZT (Al2O3 content minimum 60%, C+SiC content minimum 26%) and CH-CLT (Al2O3 content minimum 45%, C+SiC content minimum 20%) are the pre-heating free types engineered for low and ultra-low steel and alloy steel production. All four grades deliver Bulk Density minimum 2.35 to 3.4 g/cm³, Apparent Porosity maximum 18%, Cold Crushing Strength minimum 20 to 22 MPa, and Modulus of Rupture minimum 5 to 6 MPa, with Thermal Shock Resistance minimum 5 cycles for pre-heating free type.
CH Refractories is a Ladle Shroud manufacturer in China, Henan, Zhengzhou. The complete Ladle Shroud 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.
