Tundish Metering Nozzles for Continuous Casting of Non-aggressive and Low Carbon Steels

Zirconium Oxide Formulations, Bore Styles and Assemblies Engineered to Your Requirements

One heat or thirty, conventional or quick-change, multiple or single bore, 8 to over 24 hours of casting time… Zircoa has the metering nozzle to fit your practice and save you $/Ton. We match our technical and development resources to meet the caster’s constantly changing needs. No matter what your challenge, we have the material, formulation, innovative design and manufacturing technique to meet it.

For more detailed information on the unique properties of Zirconium Oxide (A Grain Zirconia, ZrO₂) please visit our Solutions page, or contact a product specialist to discuss your specific needs.

Selection

Zircoa’s 30 years of manufacturing experience provides tooling for a wide range of tundish metering nozzle shapes and bore sizes. Single and multiple bore styles are available as monolithic formulations or as fine grain insert assemblies. Our metering nozzle compositions are engineered to fit today’s casting practice in your plant. The bottom line is metering nozzles that fit your operation and save you $/Ton.

3004 — Non-aggressive Steels, Average Casting Times - Composition 3004 is a coarse grain metering nozzle mix developed to optimize thermal shock resistance while providing good erosion resistance. 3004 typically provides 8 -12 hours of casting time.

Zbor™ — Low Carbon Steels, Moderate Casting Times - Developed to satisfy mills where 24 hour sequence casting is not practical, but 14 - 20 hour times are desirable. Zbor is an intermediate product with performance superior in erosion resistance to 3004 even when casting low carbon steels.

DenZbor™ — Low Carbon Steels, Extended Casting Times - This 2-part design features a fine grain, low porosity inner metering nozzle within a coarse grain support block. This combination optimizes erosion resistance and maximizes casting times. Extremely uniform stream flow, with little flaring, and casting times exceeding 24 hours are characteristic of DenZbor metering nozzles.

The Same, Yet Different

Magnesia stabilized zirconia is the key to today’s high performance tundish metering nozzles. The material’s well known resistance to erosion and thermal shock has been optimized by Zircoa’s technicians utilizing specific forms of zirconia and process treatments during manufacturing. Zircoa’s ability to manufacture zirconium oxide materials internally provides the capability to engineer metering nozzle formulations not available from any other manufacturer in the world. When you choose tundish metering nozzles from Zircoa, you get product engineered to satisfy your requirements and save you $/Ton.

The chart and micrographs  below detail the zirconia formulations and their effect on expected life.

Typical Chemical Analysis

Consistency

Statistical process control is the key to meeting the high quality standards we set for our metering nozzles. Our manufacturing philosophy at Zircoa is to control the process so that the product has a high level of consistency before it reaches final inspection. Our goal at Zircoa is to continuously improve performance in your tundish to save you $/Ton.

Physical Properties

NOTICE: Recommendations, property values, and application information we publish are based on various sources including measurements by us and others, and estimates of experience. We intend this to be a reliable guide, but we do not guarantee the applicability, completeness, or accuracy of the information. Users should make their own tests to determine the suitability of any product for their application.

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