$Refractory Sleeves$

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Refractory Sleeves

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Refractory Sleeves Specification

Chemical Composition
High alumina, silica, and magnesia content

Application
Steel & foundry industries, used to protect thermocouples from molten metal

Water Absorption
<1.0%

Usage & Applications
Suitable for thermocouple protection, foundry casting, metallurgy

Form
Sleeve/Tube

Density
2.7 Gram per cubic centimeter(g/cm3)

Purity(%)
>98%

Melting Point
1700C - 1800C

Hardness (%)
85 - 90%

Surface Finish
Smooth

Product Type
Industrial Refractory Sleeve

Types of Refractories
Monolithic Refractory

Shape
Cylindrical sleeve

Porosity
20 - 28%

Dimensional Stability
Excellent at high temperatures

Strength
High compressive strength

Specific Gravity
2.4 - 2.8 g/cm

Thermal Conductivity
Low (approx. 0.8 W/mK at 1000C)

Color
Gray

Maximum Service Temperature
Up to 1700C

Standard
IS standard compliance

Packaging
Export-worthy wooden boxes or as per client request

Resistance
Exceptional thermal shock and corrosion resistance

Inner Diameter
22 mm custom sizes available

Thermal Expansion
4.5 x 10/C

Bulk Density
2.6 g/cm

Outer Diameter
28 mm custom sizes available

Length
250 mm 450 mm (as per customer requirements)

Refractory Sleeves Trade Information

Supply Ability
20 Per Day

Main Domestic Market
All India

About Refractory Sleeves

Our trustworthy company is engrossed in offering superior quality Refractory Sleeves, which are made up of high consistency, refractory, low density, high performance, insulating or exothermic/insulating feeding materials. They are lightweight riser sleeves ideal to be utilized to efficiently feed castings. They have great resistance against dilation and offer insulating characteristics with low fume and smoke. These sleeves help in increasing casting yields by allowing smaller sizes as compared to conventional sand risers, as well as decreases cleaning costs. Over and above, Refractory Sleeves are available in a variety of colors, sizes, shapes and finishes at the best market prices.

Exceptional Thermal Performance

Designed to withstand temperatures up to 1700C, our refractory sleeves maintain structural stability under extreme thermal and mechanical conditions. Their low thermal expansion and high compressive strength make them an ideal choice for thermocouple protection in metal casting applications.

Precision Customization

We understand that every application has unique requirements. That's why we offer sleeves in customizable dimensions-22 mm inner diameter, 28 mm outer diameter, and lengths ranging from 250 to 450 mm. This ensures the perfect fit and optimal performance in your specific foundry or metallurgical setting.

Reliable Packaging and Standards

Packaging is tailored to safeguard the refractory sleeves during transit, using export-worthy wooden boxes or client-specified solutions. All products conform to IS standards, reflecting our commitment to quality and reliability.

FAQ's of Refractory Sleeves:

Q: How are refractory sleeves used in the steel and foundry industries?

A: Refractory sleeves are primarily used to protect thermocouples from direct exposure to molten metal in steel and foundry processes, ensuring accurate and reliable temperature measurements while maintaining the longevity of sensitive sensors.

Q: What benefits do high alumina, silica, and magnesia content provide in these sleeves?

A: These materials enhance the sleeve's resistance to thermal shock and corrosion, improve mechanical strength, and ensure excellent durability in high-temperature and chemically aggressive environments.

Q: What is the process for customizing the size of a refractory sleeve?

A: Clients can specify required inner and outer diameters, as well as length, according to application needs. The sleeves are then precisely manufactured to meet these custom dimensions, ensuring optimal performance and fit.

Q: When should I select a refractory sleeve with maximum service temperature up to 1700C?

A: Choose these sleeves for applications involving continuous exposure to high temperatures, such as thermocouple protection in molten metal baths or high-temperature foundry processes, where both durability and temperature stability are critical.

Q: Where can these sleeves be shipped, and in what kind of packaging?

A: We ship refractory sleeves worldwide, packaging them in robust export-worthy wooden boxes or according to specific client requirements to guarantee safe delivery.

Q: What is the advantage of low thermal conductivity in refractory sleeves?

A: Low thermal conductivity (approximately 0.8 W/mK at 1000C) minimizes heat transfer through the sleeve, protecting thermocouples from thermal fluctuations and enabling more stable and accurate measurements.

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