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Refractory Castables Top-Quality from China: A Smart Choice for Industrial Applications

Refractory Castables: A Key Material for Industrial Kilns and Furnaces

From steelmaking to non-ferrous metal smelting, glass production to power generation—many industrial kilns and furnaces face extreme temperatures and harsh working conditions. To protect the structure and improve thermal efficiency, refractory castables are widely used.

Unlike refractory brick, refractory castable is an unshaped material that can be mixed with water and poured or gunned into position. This makes them ideal for lining complex geometries, urgent repairs, and projects where joint-free construction is preferred.

Their performance can be tailored based on required resistance to heat, abrasion, corrosion, and mechanical stress.

Why Global Buyers Trust China Refractory Companies for Castables

As high-temperature industries continue to expand worldwide, the demand for efficient, cost-effective refractory solutions is also rising. Many companies now prefer to work with China refractory manufacturers, especially when sourcing castables.

Here’s why:

Customized formulas based on thermal, chemical, and structural requirements; Reliable supply chains and export-ready packaging; Broad product categories …

    Such as:
  • Low-cement castable
  • Insulating castable
  • Ramming mass
  • Plastic refractory
  • Gunning mix
  • Precast blocks and shapes
  • Self-flow castable
  • Anti-abrasion castable
  • Other customized castable

Competitive pricing without sacrificing quality; Flexible shipping & responsive after-sales service; China’s mature supply network and manufacturing capacity. Let Kerui refractory make it a leading hub for refractory exports.

Kerui Refractory: Professional Manufacturer of Monolithic Refractories

As one of the trusted refractory companies in China, Kerui Refractory specializes in monolithic refractory materials designed to meet the demands of modern industries. Our solutions serve:

  • Cement kilns (preheater, burner pipe, tertiary duct)
  • Steel and non-ferrous metallurgy (tundish, ladle linings, furnace walls)
  • Waste incineration and biomass boilers
  • Glass kilns and furnaces
  • Carbon baking furnaces used in aluminum and carbon industries
  • Industrial boilers operating in food, textile, or chemical plants
  • Petrochemical and energy systems
  • Power plants, including coal, gas, and biomass units
  • Other high-temperature equipments

We provide a full portfolio of materials that includes:

    1. Refractory castables, including:
      – Low-cement castables (LCC)
      – Ultra-low cement castables (ULCC)
      – Insulating castables
      – Anti-abrasion and anti-corrosion castables
      – Self-flow castables for complex geometries
    2. Ramming mass for induction furnaces, tunnel kilns, and electric arc furnace bottom:
      – Silica ramming mass
      – AZS (alumina-zirconia-silica) ramming mass
      – Magnesia ramming mass
      – High-alumina and mullite ramming mass
    3. Plastic refractories for patching or lining irregular furnace sections:
      – High-alumina plastic refractory
      – Silicon carbide plastic refractory
      – Phosphate-bonded plastic refractory
    4. Gunning mixes for efficient large-area repairs or spray installation:
      – Basic gunning mix (magnesia or dolomite based)
      – Acidic gunning mix (alumino-silicate or silica based)
      – Insulating gunning mix for energy-saving linings
    5. Precast refractory blocks and shapes, engineered for quick installation and consistent performance:
      – Burner blocks
      – Tundish lids
      – Lining tiles and custom-designed modules
      – Precast pipe sections and vault segments
    6. Other monolithic refractories:
      – Customized formulas for specific furnace needs
      – Adjustable grain size distribution
      – Custom chemical and physical specifications (composition, strength, porosity)
      – Enhanced additives for slag and corrosion resistance


All products are manufactured under strict quality control, with on-site technical service and documentation support for global customers.

Choose Kerui Refractory – A Trusted Partner in China

When it comes to sourcing refractory castables and other monolithic solutions from China, Kerui Refractory offers reliable performance, complete solutions, and professional service. Whether your project needs flexible installation materials or engineered precast blocks, we help you achieve optimal lining performance and longer service life.

Contact us today to get a quote or technical consultation for your application.

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      Contact Us

      Please feel free to give your inquiry in the form below. We will reply you right now! Email: market@krref.com

      * Name:

      * Email:

      Phone/Whatsapp (including area code):

      * Message: Please leave the following information for quicker reply: product name, specifications, dimension/ drawing, quantity, usage, etc.