K R Refractory
K R Refractory
Satellite, Ahmedabad, Gujarat
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Refractory Castables

Pioneers in the industry, we offer monolithic refractory castables, insulating refractory castables, grey refractory castables, technical grade refractory castables, powdered refractory castables and high alumina refractory castables from India.

Monolithic Refractory Castables

Monolithic Refractory Castables
  • Monolithic Refractory Castables
  • Monolithic Refractory Castables
  • Monolithic Refractory Castables
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Approx. Price: Rs 1,200 / BagGet Latest Price
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Product Details:

Packaging Size25 Kg
FormPowder
MaterialCement
BrandK R Refractory
Packaging TypeBag
ColorGrey

We offer a wide range of Insulating Castables which is provided by us as per the recommended standards of the industry. These Castables are known for their high performance and low maintenance. Our experts have industry specific knowledge and therefore were enabled to offer quality based insulation services. These Castables are manufactured using quality materials and are more specific to our clients, we also offer customised specifications. These products are in sync with the set industry quality standards and are accessed at the reasonable price.

Specifications:

  • Nature of Bond: Hydraulic
  • Installation: Tamping
  • Max. Service Temperature: 1100° C
  • Maximum Grain Size: 6 mm

Features
:
  • High integrity
  • Excellent air impermeability
  • Low thermal & heat conductivity
  • High-temperature resistance
  • Provide smooth finish
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Insulating Refractory Castables

Insulating Refractory Castables
  • Insulating Refractory Castables
  • Insulating Refractory Castables
  • Insulating Refractory Castables
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Approx. Price: Rs 1,200 / KgGet Latest Price
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Product Details:

Packaging Size25 kg
Packaging TypePacket
StatePowdered
BrandK R Refractory
TypeInsulating Castable Refractory
ColorGrey

We offer a wide range of Insulating Castables which is provided by us as per the recommended standards of the industry. These Castables are known for their high performance and low maintenance. Our experts have industry specific knowledge and therefore were enabled to offer quality based insulation services. These Castables are manufactured using quality materials and are more specific to our clients, we also offer customised specifications. These products are in sync with the set industry quality standards and are accessed at the reasonable price.

Specifications:

  • Nature of Bond: Hydraulic
  • Installation: Tamping
  • Max. Service Temperature: 1100° C
  • Maximum Grain Size: 6 mm

Features
:
  • High integrity
  • Excellent air impermeability
  • Low thermal & heat conductivity
  • High-temperature resistance
  • Provide smooth finish
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Grey Refractory Castables

Grey Refractory Castables
  • Grey Refractory Castables
  • Grey Refractory Castables
  • Grey Refractory Castables
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Approx. Price: Rs 1,200 / KgGet Latest Price
Product Brochure

Product Details:

Packaging Size25 kg
Packaging TypeBox
StatePowdered
BrandK R Refractory
ColorGrey
Country of OriginMade in India

We offer a wide range of Insulating Castables which is provided by us as per the recommended standards of the industry. These Castables are known for their high performance and low maintenance. Our experts have industry specific knowledge and therefore were enabled to offer quality based insulation services. These Castables are manufactured using quality materials and are more specific to our clients, we also offer customised specifications. These products are in sync with the set industry quality standards and are accessed at the reasonable price.

Specifications:

  • Nature of Bond: Hydraulic
  • Installation: Tamping
  • Max. Service Temperature: 1100° C
  • Maximum Grain Size: 6 mm

Features
:
  • High integrity
  • Excellent air impermeability
  • Low thermal & heat conductivity
  • High-temperature resistance
  • Provide smooth finish
Request
Callback
Yes! I am Interested

Technical Grade Refractory Castables

Technical Grade Refractory Castables
  • Technical Grade Refractory Castables
  • Technical Grade Refractory Castables
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Approx. Price: Rs 30 / KgGet Latest Price
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Product Details:

Packaging Size25 kg
GradeTechnical Grade
Packaging TypePacket
StatePowdered
ColorGrey
Country of OriginMade in India

Monolithic Refractory Castables: An Overview

Monolithic refractory castables are advanced refractory materials designed for use in high-temperature industrial applications. Unlike traditional brick refractories, these materials are installed in a single, continuous layer without the need for joints, enhancing their performance in harsh environments.

Types of Monolithic Refractory Castables
  1. Conventional Castables

    • Contain a high proportion of calcium aluminate cement (CAC).
    • Require higher water content for installation.
    • Used in moderate to high-temperature applications.
  2. Low-Cement Castables (LCC)

    • Reduced cement content (3–8%).
    • Enhanced strength, density, and thermal shock resistance.
    • Used in industries such as steel, cement, and petrochemicals.
  3. Ultra-Low Cement Castables (ULCC)

    • Cement content is typically below 3%.
    • High mechanical strength and corrosion resistance.
    • Preferred for extreme conditions like steel ladles and rotary kilns.
  4. No-Cement Castables

    • Use chemical binders instead of calcium aluminate cement.
    • Excellent resistance to slag and chemical attack.
    • Suitable for specialized applications like non-ferrous metallurgy.
  5. Self-Flow Castables

    • Designed to flow and compact under their own weight.
    • Ideal for complex shapes and hard-to-reach areas.
    • Eliminates the need for vibration during installation.
  6. Insulating Castables

    • High porosity and low thermal conductivity.
    • Used for heat retention and energy efficiency.
    • Common in furnaces, kilns, and boilers.
Key Properties
  • High-Temperature Resistance: Withstand extreme heat conditions (up to 1800°C).
  • Thermal Shock Resistance: Adapt to rapid temperature changes without cracking.
  • Erosion and Corrosion Resistance: Protect against slag, molten metal, and chemical attack.
  • Mechanical Strength: High resistance to wear and mechanical stress.
  • Ease of Installation: Can be poured, pumped, or gunned into place.
Applications
  • Steel Industry: Ladles, tundishes, and blast furnaces.
  • Cement Industry: Rotary kilns, preheaters, and cooler linings.
  • Petrochemical Industry: Fluidized bed reactors and reformers.
  • Power Plants: Boilers, incinerators, and gasifiers.
  • Glass Industry: Regenerators and forehearths.
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Powdered Refractory Castables

Powdered Refractory Castables
  • Powdered Refractory Castables
  • Powdered Refractory Castables
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Approx. Price: Rs 30 / KgGet Latest Price
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Product Details:

Packaging Size25 kg
GradeIndustrial Grade
Packaging TypePacket
StatePowdered
ColorGrey
Country of OriginMade in India

Refractory castables are specialized high-temperature-resistant materials used in various industrial applications where extreme heat and thermal shock resistance are required. They are composed of refractory aggregates, binders, and additives that enhance their performance. These materials are commonly used in furnaces, kilns, boilers, and other high-temperature processing units.

Types of Refractory Castables
  1. Conventional Castables – Contain high amounts of cement and have moderate strength and durability.
  2. Low Cement Castables (LCC) – Have reduced cement content, leading to improved strength, thermal shock resistance, and lower porosity.
  3. Ultra Low Cement Castables (ULCC) – Further reduced cement content, providing even better performance in extreme conditions.
  4. No Cement Castables (NCC) – Use chemical bonding instead of cement, offering superior thermal resistance and corrosion resistance.
  5. Insulating Castables – Lightweight, with high porosity, used for insulation purposes in high-temperature applications.
  6. Self-Flowing Castables – Designed to flow easily into complex shapes without the need for vibration.
  7. Gunning Castables – Applied using a gunning machine, reducing installation time and improving efficiency.
Key Properties of Refractory Castables
  • High Temperature Resistance – Withstand temperatures exceeding 1600°C.
  • Thermal Shock Resistance – Ability to endure rapid temperature changes without cracking.
  • Chemical Resistance – Resistant to acidic, basic, and slag attacks depending on the composition.
  • Mechanical Strength – High strength to withstand operational loads and mechanical stress.
  • Abrasion Resistance – Suitable for high-wear environments like furnaces and incinerators.
Applications of Refractory Castables
  • Steel Industry – Linings for ladles, tundishes, and furnaces.
  • Cement Industry – Kiln linings, burner blocks, and preheater cyclones.
  • Petrochemical Industry – Used in reactors, reformers, and cracking units.
  • Power Plants – Boiler linings and incinerator walls.
  • Non-Ferrous Metals Industry – Aluminum, copper, and glass melting furnaces.
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High Alumina Refractory Castables

High Alumina Refractory Castables
  • High Alumina Refractory Castables
  • High Alumina Refractory Castables
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Approx. Price: Rs 800 / BagGet Latest Price
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Product Details:

Minimum Order Quantity25 Bag
Packaging Size25 kg
Packaging TypePacket
GradeTechnical Grade
StatePowdered
ColorGrey
Country of OriginMade in India

High Alumina Fire Cement is a specialized type of cement designed for high-temperature applications. It is primarily composed of high alumina content (typically 50% or more), which gives it superior heat resistance, strength, and durability compared to regular fire cement.

Key Features

High Heat Resistance – Can withstand temperatures up to 1600°C or more
Rapid Setting – Sets quickly after application, reducing downtime
Excellent Bonding Strength – Adheres well to firebricks, castables, and refractories
Chemical Resistance – Resists attack from slag, acids, and alkalis
Low Shrinkage – Minimizes cracks due to thermal expansion and contraction

Applications

�� Furnaces & Kilns – Used for lining and repairing high-temperature furnaces
�� Boilers & Fireplaces – Ideal for sealing joints and gaps in high-heat environments
�� Refractory Brickwork – Helps bond firebricks in ovens, stoves, and incinerators
�� Foundries & Steel Plants – Used in molten metal handling areas

How to Use
  1. Surface Preparation – Ensure the surface is clean, dry, and free from dust or grease
  2. Mixing – If supplied as a powder, mix with clean water (as per manufacturer’s instructions)
  3. Application – Apply using a trowel or spatula to the desired area
  4. Curing – Allow to air dry for 24 hours before exposing to high temperatures
Comparison: High Alumina Fire Cement vs Regular Fire Cement
PropertyHigh Alumina Fire CementRegular Fire Cement
Max Temp Resistance 1400-1600°C+ 1200°C max
Setting Time Quick Moderate
Strength High Moderate
Chemical Resistance Strong Moderate
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Additional Information:

  • Item Code: 40
  • Production Capacity: 500
  • Delivery Time: one week
  • Packaging Details: hdpe bags
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Ceramic Refractory Castables

Ceramic  Refractory Castables
  • Ceramic  Refractory Castables
  • Ceramic  Refractory Castables
  • Ceramic  Refractory Castables
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Approx. Price: Rs 25 / PieceGet Latest Price
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Product Details:

Size230 x 114 x 75 mm
GradeIndustrial Grade
MaterialCeramic
ColorBrown
StateSolid
Usage/ApplicationHeating Boiler

Fire clay bricks are heat-resistant bricks made from fire clay, a type of refractory clay that can withstand high temperatures without losing its strength or shape. They are commonly used in applications where high thermal resistance is required, such as furnaces, kilns, fireplaces, and industrial ovens.

Properties of Fire Clay Bricks
  1. High Refractoriness – Can withstand temperatures ranging from 1,500°C to 1,750°C.
  2. Low Thermal Conductivity – Provides good insulation and energy efficiency.
  3. Chemical Resistance – Resistant to acids and alkalis, making them suitable for harsh environments.
  4. High Compressive Strength – Can bear heavy loads without deformation.
  5. Porosity – Moderate porosity allows them to handle thermal expansion effectively.
  6. Durability – Long-lasting in high-temperature applications.
  7. Shrinkage Resistance – Minimal shrinkage at high temperatures, maintaining their shape.
Types of Fire Clay Bricks
  1. High-Duty Fire Bricks – Used in industrial furnaces and kilns where extreme heat resistance is needed.
  2. Medium-Duty Fire Bricks – Suitable for fireplaces, ovens, and chimneys with moderate heat exposure.
  3. Low-Duty Fire Bricks – Used in residential fireplaces and low-temperature applications.
  4. Super-Duty Fire Bricks – Made with higher alumina content, offering superior heat resistance.
  5. Insulating Fire Bricks (IFB) – Lightweight and porous, used in high-temperature insulation.
Uses of Fire Clay Bricks
  • Lining of furnaces, kilns, and boilers
  • Fireplaces and chimneys
  • Pizza ovens and tandoors
  • Industrial incinerators
  • Steel and cement industries
  • Glass and ceramics industries
Comparison: Fire Clay Bricks vs. Regular Clay Bricks
PropertyFire Clay BricksRegular Clay Bricks
Heat Resistance High (up to 1,750°C) Low (up to 1,000°C)
Thermal Conductivity Low (good insulation) Higher
Strength Higher Moderate
Durability in Heat Excellent Poor
Cost Higher Lower
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Industrial Grade Refractory Castables

Industrial Grade Refractory Castables
  • Industrial Grade Refractory Castables
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Approx. Price: Rs 30 / KgGet Latest Price
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Product Details:

Packaging Size25 kg
Packaging TypePacket
StatePowdered
ColorGrey
Country of OriginMade in India
GradeTechnical Grade

Refractory castable cement is a type of cement designed to withstand high temperatures, often used in industrial applications such as furnaces, kilns, boilers, and incinerators. Unlike regular cement, refractory castables are made with materials that have high resistance to thermal shock, chemical corrosion, and abrasion.

These materials typically include a blend of refractory aggregates (like alumina, silica, or magnesia), binders (such as calcium aluminate cement), and other additives to enhance performance.

Some key characteristics of refractory castable cement:

  1. High Temperature Resistance: Can withstand extreme heat, often exceeding 1500°C (2700°F).
  2. Thermal Shock Resistance: Handles sudden temperature changes without cracking.
  3. Chemical Resistance: Resists corrosion from molten metals, slags, and other chemicals.
  4. Ease of Installation: Can be cast into complex shapes, making it versatile for different industrial needs.
  5. Durability: Withstands the wear and tear of high-pressure environments, including in steel plants, power plants, and other high-heat industrial settings.
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Vanraj (Owner)
K R Refractory
406, Aditya Plaza, Near Jodhpur Cross Road
Satellite, Ahmedabad - 380015, Gujarat, India
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