Steelmaking

The steelmaking process, where molten iron becomes solid steel, involves several stages of thermal and chemical treatment requiring a variety of refractory linings that are compatible with many application conditions.

 

These linings must have excellent resistance to steel and basic slag corrosion, as well as high thermal shock and oxidation resistance.

 

Saint-Gobain services this market with innovative refractories solutions that present high performances and contribute to enhanced steel quality.

Solution By Equipment

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RH Degasser

Crude steel production begins with the reduction process, where the iron ore reacts with carbon sources inside the blast furnace. The blast furnace requires different types of refractory products with resistance to thermo-mechanical and thermo-chemical reactions.

The RH degassing system is essential for steel shops looking to meet current standards of steel quality. This process requires the use of ultra high temperature MgO-Cr2O3 fired bricks and specialized refractories offering excellent corrosion resistance and longer service life.

Saint-Gobain Performance Ceramics & Refractories has recently begun working in partnership with a Japanese refractory supplier, allowing the company to reach new levels of thermal cycling resistance in its projects.

 

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High Corrosion Resistance
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High Thermal Shock Resistance
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High Quality Fused Magnesia
 

    RH Degasser Products and Benefits

    Product Characteristics Application Benefits
    Direct bonded Type MgO-Cr2O3 Vessel walls, Bottom High thermal shock resistance
    Semi-Rebonded and
    Rebonded Type
    MgO-Cr2O3 Impact area, Throat, Snorkel High corrosion
    Thermal shock resistance
    Pre shaped castable High Al2O3 Snorkel Corrosion
    Thermal shock
    Mechanical resistance
    Unburned Bricks MgO-C Vessel walls High thermal shock resistance
    Gunning mixes MgO (silicate bonded)
    MgO (phosphate bonded)
    Cold and hot repair High performance
    High Adhesion
    Low rebound

    FAQ

    Can a refractory solution from Saint-Gobain Performance Ceramics & Refractories be responsive to changing RH degasser requirements?

    Steelmaking operating and process conditions are highly dynamic, with changes naturally occurring over time.

    During RH degasser operation, technical staff from Saint-Gobain Performance Ceramics & Refractories work in partnership with customers to identify and anticipate changes that may be required to improve and optimize projects for future deliveries.

    Can Saint-Gobain Performance Ceramics & Refractories develop custom refractory solutions for unique operating conditions?

    Yes. Before proposing a refractory solution, a team of experienced engineers and specialists will work closely with the customer to ascertain their needs, operating conditions and requirements. Technical staff will visit customer plants if required, analyzing existing processes to precisely identify all requirements before presenting the customer with a suitable refractory solution.

    How do Saint-Gobain Performance Ceramics & Refractories’ solutions help to improve RH degasser service life and performance?

    Brick-based and monolithic refractory solutions are developed in-house or with a trusted international technology partner. Solutions are developed using the most advanced technology available, ensuring the necessary characteristics and properties required for optimum RH degasser performance and service life.