Description of Ultra-high Strength Nano-grade Insulating Castables:

Rongsheng’s ultra-high strength nano-grade insulating castable is made of high-temperature high-strength lightweight nano aggregate, aluminate cement and alumina powder with various additives. Its nano-level porosity structure made the advantages of high crushing strength, lowthermal conductivity, excellent heat insulation, energy saving and convenient construction, which can greatly reduce the thermal energy consumption of industrial furnaces.

Parameters of Ultra-high Strength Nano-grade Insulating Castables:

Product Ultra-high Strength Nano-grade Insulation Castable
RUL,0.2MPa*0.6% ≥1500 ≥1350

BD, g/cm3


110℃×24h ≤1.6 ≤1.6



110℃×24h ≥25 ≥25
PLC,% 1500℃×12h




TC,W/ (m.K) Hot Side 800℃ 0.401 0.605
Hot Side 1100℃ 0.421 0.655

Why choose us?

1.Abundant Experience. Rongsheng Group have over 20 years experience in the refractory industry and we have a deep understanding of the materials and applications we work with. We can provide expert advice and guidance to help customers find the best solutions for their needs.

2.Quality products. We pride ourselves on providing high-quality refractory products that are made to last. Our materials are carefully sourced and tested to ensure they meet our strict standards.

3.Competitive Price. We offer competitive pricie on all of our products without sacrificing quality and make the products competitive in your market.

4.Customization. We understand that every customer is unique, which is why we offer customized solutions tailored to their specific requirements. Whether it’s a custom shape or size, we can work with customers to create the ideal product for their application.

5.Safety. We take safety seriously and ensure that all of our products meet safety standards. Safty packing, prompt delivery time, and excellent after-sales services.

6.Large stocks. With a large stock of products on hand, we can better serve our customers, save money, and gain a competitive edge in their industry.

7. Overall solutions. We offer optimal and comprehensive solutions to supply the necessary refractory material for your high temperature kiln.

8.Long-term relationships. We believe in building long-term relationships with our customers based on trust and mutual benefit. We are committed to providing ongoing support and service to ensure customer satisfaction. Rongsheng Refractory can be used in many fields of steel, nonferrous metals, glass, cement, ceramic, petrochemical, machinery, boiler, light, and power industries. What’s more, Industrial distributors, refractory contractors, sales agents, trading companies, and refractory consultants can all benefit from promoting and selling our top-of-the-line refractory products. With a focus on durability, longevity, and performance, our products are designed to exceed your expectations and provide your customers with the best possible results.

So choosing us is the right choice for you.If you are interested in our products or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.

    Request For Quotation

    Send Your Inquiry Right Now. You can get the price list and we will contact you soon