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Get PriceBottom Pouring Set is a critical refractory assembly used in steel ladles for precise control of molten steel flow. Our sets deliver superior steel quality, improve yield, and enhance safety for casting operations worldwide.
A Bottom Pouring Set is a sophisticated refractory assembly installed in a steel ladle. It allows operators to teem molten steel from the bottom of the ladle through a controlled mechanism. This coordinated set primarily consists of a stopper rod that opens and closes the nozzle embedded in the well block at the ladle base. As a result, this method produces high-quality, clean steel with minimal reoxidation and slag entrapment.
Our clients across the global steel industry rely on our sets for their most demanding applications.
Superior Steel Quality:
Our sets prevent slag and oxides from entering the ingot mold or tundish. Consequently, this significantly reduces defects and results in cleaner steel.
Precise Flow Control:
The stopper rod mechanism gives operators meticulous control over the teeming stream, from full flow to a precise trickle. In addition, it allows for better mold filling and sequence casting.
Enhanced Safety:
Because operators no longer tilt heavy ladles, they work in a safer environment and protect surrounding equipment.
Improved Yield and Efficiency:
Our sets minimize metal loss from spillage and oxidation. Therefore, you benefit from higher yield and improved operational efficiency.
Reduced Operational Costs:
We build each component with high-quality refractories to ensure longer service life. As a result, you experience fewer changeovers and lower total cost of ownership.
We deliver a complete solution where each component matches perfectly for optimal performance.
| Nozzle Brick | MgO % | Al2O3 % | CaO % | C % | Bulk Density (g/cm³) | Apparent Porosity % | |
|---|---|---|---|---|---|---|---|
| Upper Nozzle | KRUN-5D | - | 83 | - | 8 | 3.04 | 5 |
| KRUN-9C | - | 76 | - | 8 | 2.95 | 5 | |
| KRUN-32B2-2 | - | 90 | - | 4.5 | 3.03 | 7 | |
| KRUN-34A | - | 85 | - | 5 | 3 | 6 | |
| KRUN-129 | - | 88 | - | 6.5 | 3.1 | 7 | |
| KRUN-LMT | 28 | 67 | - | 4.5 | 3.05 | 4 | |
| KRUN90CA | - | 96.5 | 1.5 | - | 3.2 | 12 | |
| KRUN90CMA | 5 | 90 | 1.5 | - | 3.16 | 13 | |
| Lower Nozzle | KRLN-9C | - | 76 | - | 8 | 2.95 | 5 |
| KRLN-9A | - | 68 | - | 6 | 2.7 | 9 | |
| KRLN-14 | - | 80 | - | 5.5 | 3.01 | 6.5 | |
| KRLN-14A | - | 73 | - | 8 | 2.67 | 6 | |
| KRLN-34A | - | 85 | - | 5 | 2.97 | 7 | |
| KRLN95CA | - | 96.5 | 1.5 | - | 3.2 | 12 | |
| KRLN90CMA | 5 | 90 | 1.5 | - | 3.16 | 13 | |
| KRGCast-4 | - | 88 | 1.5 | - | 3.07 | 14 | |
| Well Block | Al2O3+MgO (%) | CaO (%) | C (%) | Apparent Porosity (%) | Bulk Density (g/cm³) | Cold Crushing Strength (110℃×24h, MPa) | Cold Crushing Strength (1550℃×3h, MPa) | Cold Modulus Strength (110℃×24h, MPa) | Cold Modulus Strength (1550℃×3h, MPa) |
|---|---|---|---|---|---|---|---|---|---|
| KRAC27A | 93 | 1.2 | / | 12 | 3.17 | 50 | 90 | 8 | 25 |
| KRAC27D | 93 | 1.2 | / | 12 | 3.17 | 50 | 95 | 8 | 25 |
| KRAC30 | 97 | 1.5 | / | 12 | 3.15 | 50 | 105 | 9 | 25 |
| KRWB95CA | 97 | 1.5 | / | 15 | 3.13 | 50 | 105 | 9 | 25 |
| KRWB90CMA | 93.5+3.8 | 1.6 | / | 15 | 3.13 | 50 | 105 | 9 | 25 |
| KRWB-35 | 89 | / | 5.5 | 8 | 2.97 | 70 | / | 14 | / |
| KRWB-9 | 78 | / | 8 | 8 | 2.95 | 70 | / | 13 | / |
| KRWB-2D | 70 | / | / | 20 | 2.8 | 60 | / | 13 | / |
Nozzle: Alumina, Zirconia, Fused Silica – Designed for uniform wear and precise bore sizing, ensuring controlled flow and excellent anti-clogging properties.
Well Block: High-Alumina, MgO – Offers high strength to resist mechanical stress and thermal cycling while allowing easy, accurate installation.
Stopper Rod: Alumina-Graphite, Zirconia – Provides high thermal shock resistance and excellent erosion resistance, machined with precision.
Ladle Shroud: Alumina-Graphite – Protects the steel stream from air reoxidation during pouring.
Other Products: Customized bricks, castables, and gunning mixes for ladle and tundish applications.
Customization Available:
We can tailor material composition, size, and dimensions of each component. Therefore, you receive a set that perfectly matches your ladle design, steel grade, and casting practice.
Our Bottom Pouring Sets support a wide range of steelmaking operations:
Ingot Casting: The primary method for teeming molten steel into ingot molds.
Foundries: Ideal for producing large, high-value steel castings where quality is crucial.
Specialty Steel Production: Essential for manufacturing high-grade alloy steels, tool steels, and stainless steels.
Slab, Bloom, and Billet Casting: When pouring into a tundish for continuous casting operations.
A Complete, Matched Set: All components work together seamlessly, avoiding compatibility issues and ensuring consistent results.
Expert Technical Support: Our metallurgical and refractory specialists assist you from initial consultation to plant troubleshooting.
Proven Performance: Leading steel mills worldwide trust our sets to perform reliably under tough conditions.
R&D Driven: We invest continuously in research and development, so you benefit from the latest refractory technology.
Q: How do I determine the right material grade for my set?
A: We recommend a grade based on your steel type, pouring temperature, and teeming time. Our technical sales team will guide you to the most suitable choice.
Q: What is the typical lifespan of a Bottom Pouring Set?
A: Service life varies with material grade, steel type, and operating practices. Nevertheless, our focus is to maximize your sequence length.
Q: Can you help with installation and training?
A: Yes. We provide detailed manuals and, when needed, on-site or remote training to ensure proper installation, preheating, and operation.
Q: Do you offer emergency delivery?
A: Absolutely. We keep common sets and components in stock and provide expedited shipping to minimize downtime.
Are you ready to enhance your casting operation with a reliable Bottom Pouring Set? Contact Kerui Refractory today with your ladle details and process parameters. Our experts will respond quickly with a competitive quotation and detailed technical recommendations.