Zhengzhou Rongsheng Refractory Materials Co., Ltd., with over 20 years of industry experience and a spirit of innovation, has launched this zirconium silicate with a refractive index of 1.93 - 2.01. It appears as a non-toxic, odorless white or off-white powder with extremely high chemical stability, maintaining stable performance even in complex environments. This product has passed multiple international certifications, ensuring its solid quality. In the global high-temperature industry, it is a superior choice, adding value to products in ceramics, refractories, glass, and plastics industries, meeting the specific needs of different scenarios. Rongsheng also provides comprehensive after-sales support, giving you peace of mind.

Zirconium silicate

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., with over 20 years of industry experience and serving over 2000 customers worldwide, is now proud to launch its high-purity black silicon carbide powder. Manufactured in an advanced factory in Henan, this product boasts a SiC content of 80-95%, meets international quality standards, and has obtained CE and ISO certifications. It exhibits extremely high hardness, capable of withstanding high-intensity friction and pressure; and excellent thermal stability, maintaining stable performance even at high temperatures. Custom sizes are available to meet the diverse needs of different customers. Both in terms of quality and service, it provides reliable assurance for international trading clients and is an excellent choice for industrial applications.

Silicon carbide powder

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. independently develops high-purity, dense sintered zirconia powder with a density of 5.85 g/cm³. Refined using advanced sintering technology, this ensures a dense powder structure, high purity, and excellent thermal stability and mechanical strength. With a melting point as high as 2700℃, this product can operate stably for extended periods in extreme high-temperature environments and is widely used in electronic device manufacturing, industrial ceramics, and high-temperature mechanical components. As a national high-tech enterprise, Rongsheng Refractory Materials strictly adheres to the ISO9001 quality management system, providing customized solutions and comprehensive after-sales service to meet the stringent demands of global customers for high-performance refractory materials. We are a trustworthy partner.

zirconium powder

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. has meticulously developed high-purity white zirconium silicate powder for ceramics. Utilizing advanced ultrafine grinding technology and surface modification treatment, the powder ensures uniform particle size and stable chemical properties. This product exhibits excellent high-temperature resistance, withstanding temperatures up to 2500℃, and possesses a stable refractive index of 1.93 to 2.01 and a Mohs hardness of 7.5, endowing ceramics with excellent wear and corrosion resistance. Due to its outstanding chemical stability, the powder is widely used in building ceramics, sanitary ceramics, and daily-use and luxury craft ceramics; it is also suitable for heavy-duty corrosion-resistant refractory materials and the glass industry, such as color picture tubes, emulsion glass, and enamel glazes. In plastic filler applications, it demonstrates good heat and chemical corrosion resistance. As a national high-tech enterprise, Rongsheng emphasizes product quality and service, holds multiple international certifications, ensures a stable and reliable supply, and is committed to providing high-performance ceramic material solutions to global customers.

Zirconium Silicate Powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. meticulously crafts customized corundum spinel powder with specific particle sizes for the international market, a high-quality refractory raw material. The product undergoes rigorous quality control, possessing excellent thermal stability, chemical corrosion resistance, and thermomechanical strength. Particle sizes of 0-1mm and 1-3mm are available to fully meet the diverse needs of different customers. This product is widely used in industries such as steel, ceramics, cement, and glass, and performs particularly well in ceramic kiln furniture, refractory bricks, and refractory castables. Furthermore, it has obtained international certifications such as ISO9001 and ISO14001, and provides professional after-sales consultation and installation guidance services, offering reliable refractory material solutions for international buyers.

Andalusite Powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. produces calcined corundum for wear resistance materials, made from natural bauxite through high-temperature calcination. Its alumina content is 60%-85% or higher, with a refractoriness of up to 1790°C. It possesses excellent chemical stability, maintaining stable performance even in complex chemical environments. Its high hardness and outstanding wear resistance allow it to withstand high-intensity friction. The company boasts advanced automated production lines and strict quality control; each batch of products undergoes rigorous testing and has obtained international certifications such as ISO9001, ensuring quality. Customized particle size services are also available to meet the diverse needs of different customers. Rongsheng's professional technical team and after-sales support provide high-quality services to customers worldwide.

Calcinated bauxite

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. meticulously crafts high-strength mullite refractory materials with uniform thermal expansion. These materials are made from high-quality quartz sand and industrial alumina, melted in an electric arc furnace. The products possess a highly developed needle-like crystal structure, uniform thermal expansion, high strength, excellent thermal shock resistance, high softening point under load, low creep at high temperatures, high hardness, and excellent chemical corrosion resistance. Certified by international standards such as ISO9001 and ISO14001, quality is guaranteed. As a high-tech enterprise, Rongsheng strictly controls quality, possesses professional technical support and a global sales network, and provides comprehensive after-sales service and customized solutions to meet your diverse needs.

Fused Mullite Refractory Material

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. meticulously crafts fused silica powder for high-temperature refractory materials, making it an ideal choice for high-temperature industries. With a SiC content of 80%-95% and a refractoriness of 1770°C-2000°C, it can easily withstand extreme high-temperature environments. The product has passed ISO and other international certifications, meeting international quality standards. Advanced processes ensure consistent powder particle size and shape, greatly improving its applicability. Multiple specifications are available to precisely match the needs of different customers. Rongsheng also provides comprehensive services from pre-sales consultation and solution development to after-sales online installation guidance, ensuring a worry-free procurement experience.

Silicon carbide powder

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd., through its subsidiary Henan Rongsheng New Materials Research Institute Co., Ltd., has meticulously launched a customizable anthracite carbon raiser, an ideal choice for the steel manufacturing industry. This product is derived from high-quality anthracite with a purity of up to 99%, significantly increasing the carbon content of molten metal. Its refractoriness ranges from 1770°C to 2000°C, maintaining stable performance in the high-temperature environment of industrial kilns. Furthermore, customers can customize the composition with SiO2, Al2O3, and MgO according to their specific needs. The company's products have passed multiple international certifications, guaranteeing quality, and comprehensive after-sales service is provided for your peace of mind.

Calcination anthracite carbon raiser

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., a national high-tech enterprise, meticulously manufactures high-purity petroleum coke for carbon additives for the metallurgical industry. This product is manufactured using advanced technology and features high purity, low heat impurities, and uniform particle size. Its outstanding thermal stability and high strength allow it to maintain good performance even at extreme temperatures, effectively and significantly increasing the carbon content in steel, thereby improving the quality of end products. This petroleum coke undergoes rigorous quality control and testing, holds a series of international certifications such as ISO, and is developed in collaboration with renowned research institutes, ensuring its reliable quality. We also provide comprehensive after-sales support, offering reliable and efficient solutions for your high-temperature industrial needs.

High-carbon graphite petroleum coke

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. independently develops and produces high-purity 98% silicon carbide powder, made from carefully selected quartz sand, petroleum coke, and sawdust through a high-temperature smelting process. This product boasts a hardness of up to 9.2, excellent wear resistance, good thermal conductivity, and extremely low impurities, ensuring outstanding performance in metallurgy, ceramics, abrasives, and high-temperature refractories. The product is widely used in the power, steel, and petrochemical industries, meeting the stringent requirements for material stability and durability under high-temperature conditions. The company has obtained ISO9001 and ISO14001 international certifications and possesses advanced automated production lines and a comprehensive quality control system, guaranteeing consistent and stable quality. We support customization of various particle sizes and provide professional pre-sales and after-sales technical support to meet the personalized needs of global customers, making us a trustworthy silicon carbide powder supplier.

Black silicon carbide powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., as an innovative pioneer in the refractory materials field, brings a boon to the global ceramics industry—99.99% high-purity zirconia powder. This zirconia powder has undergone rigorous international standard testing and certification, ensuring safety, reliability, and superior quality. Utilizing advanced materials science and technology, the company can customize different particle sizes according to customer needs, meeting diverse production requirements. Simultaneously, a professional technical team provides comprehensive technical support to help companies increase production capacity. The product has obtained multiple certifications, including ISO, and boasts an efficient global supply chain, supporting bulk orders. Choosing Rongsheng's zirconia powder means choosing superior quality and worry-free after-sales service.

zirconium powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. independently develops spherical ceramic sand refractory particles, refined using a high-purity alumina and silicate composite process. These particles possess excellent thermal stability (withstanding 1800℃), low thermal expansion rate, and strong thermal shock resistance. Their unique spherical structure significantly improves fluidity and filling density, reduces binder usage, enhances mold permeability, and effectively reduces the risk of casting defects such as cracks and porosity. The product complies with ISO9001 quality management system standards and is widely used in precision casting in the steel, non-ferrous metals (aluminum, copper, magnesium alloys), and machinery manufacturing industries. It is an ideal environmentally friendly alternative to chromite sand and zircon sand. Rongsheng provides customized formulations and global technical support services to ensure export customers receive stable and reliable high-quality casting materials.

Ceramic casting sand

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. specializes in producing ultra-pure white corundum with Al₂O₃ ≥ 99.5% and Na₂O ≤ 0.30%. It is smelted from high-quality industrial alumina in a 2250°C electric arc furnace, exhibiting excellent thermal stability (temperature resistance ≥ 1850°C), high hardness (Mohs hardness > 10), and a dense structure. The product boasts outstanding resistance to acid and alkali corrosion and is widely used in high-end refractory castables, precast bricks, and high-temperature kiln linings. It is particularly suitable for harsh operating environments such as steel smelting, power boilers, and petrochemical catalytic cracking. Certified by ISO9001 and CE, the company supports global technical support and customized solutions, helping customers improve equipment lifespan and operating efficiency. It is a high-quality refractory material raw material trusted by international customers.

White corundum

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. specializes in producing high-purity, custom-composition fused magnesia (FM-95-FM-98), manufactured using an electric arc melting process (temperatures exceeding 2750°C). The MgO content is as high as 95%-98%, with impurities such as SiO₂, Fe₂O₃, and Al₂O₃ controlled to extremely low levels. The products possess excellent thermal shock resistance, corrosion resistance, and high-temperature strength, and are widely used in harsh environments such as steel smelting, cement rotary kilns, and glass melting pools. Supporting ISO9001 quality system certification and CE/SGS international export standards, the company can flexibly adjust the chemical ratio according to customer needs to ensure performance matches different application scenarios, helping customers extend the service life of refractory materials and reduce kiln shutdown maintenance costs. It is a reliable partner for high-temperature industrial customers worldwide.

fused magnesia

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., with over 20 years of industry experience and a spirit of innovation, has launched this zirconium silicate with a refractive index of 1.93 - 2.01. It appears as a non-toxic, odorless white or off-white powder with extremely high chemical stability, maintaining stable performance even in complex environments. This product has passed multiple international certifications, ensuring its solid quality. In the global high-temperature industry, it is a superior choice, adding value to products in ceramics, refractories, glass, and plastics industries, meeting the specific needs of different scenarios. Rongsheng also provides comprehensive after-sales support, giving you peace of mind.

Zirconium silicate

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. independently develops high-purity, dense sintered zirconia powder with a density of 5.85 g/cm³. Refined using advanced sintering technology, this ensures a dense powder structure, high purity, and excellent thermal stability and mechanical strength. With a melting point as high as 2700℃, this product can operate stably for extended periods in extreme high-temperature environments and is widely used in electronic device manufacturing, industrial ceramics, and high-temperature mechanical components. As a national high-tech enterprise, Rongsheng Refractory Materials strictly adheres to the ISO9001 quality management system, providing customized solutions and comprehensive after-sales service to meet the stringent demands of global customers for high-performance refractory materials. We are a trustworthy partner.

zirconium powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., as an innovative pioneer in the refractory materials field, brings a boon to the global ceramics industry—99.99% high-purity zirconia powder. This zirconia powder has undergone rigorous international standard testing and certification, ensuring safety, reliability, and superior quality. Utilizing advanced materials science and technology, the company can customize different particle sizes according to customer needs, meeting diverse production requirements. Simultaneously, a professional technical team provides comprehensive technical support to help companies increase production capacity. The product has obtained multiple certifications, including ISO, and boasts an efficient global supply chain, supporting bulk orders. Choosing Rongsheng's zirconia powder means choosing superior quality and worry-free after-sales service.

zirconium powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., with over 20 years of industry experience and serving over 2000 customers worldwide, is now proud to launch its high-purity black silicon carbide powder. Manufactured in an advanced factory in Henan, this product boasts a SiC content of 80-95%, meets international quality standards, and has obtained CE and ISO certifications. It exhibits extremely high hardness, capable of withstanding high-intensity friction and pressure; and excellent thermal stability, maintaining stable performance even at high temperatures. Custom sizes are available to meet the diverse needs of different customers. Both in terms of quality and service, it provides reliable assurance for international trading clients and is an excellent choice for industrial applications.

Silicon carbide powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. meticulously crafts fused silica powder for high-temperature refractory materials, making it an ideal choice for high-temperature industries. With a SiC content of 80%-95% and a refractoriness of 1770°C-2000°C, it can easily withstand extreme high-temperature environments. The product has passed ISO and other international certifications, meeting international quality standards. Advanced processes ensure consistent powder particle size and shape, greatly improving its applicability. Multiple specifications are available to precisely match the needs of different customers. Rongsheng also provides comprehensive services from pre-sales consultation and solution development to after-sales online installation guidance, ensuring a worry-free procurement experience.

Silicon carbide powder

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd., through its subsidiary Henan Rongsheng New Materials Research Institute Co., Ltd., has meticulously launched a customizable anthracite carbon raiser, an ideal choice for the steel manufacturing industry. This product is derived from high-quality anthracite with a purity of up to 99%, significantly increasing the carbon content of molten metal. Its refractoriness ranges from 1770°C to 2000°C, maintaining stable performance in the high-temperature environment of industrial kilns. Furthermore, customers can customize the composition with SiO2, Al2O3, and MgO according to their specific needs. The company's products have passed multiple international certifications, guaranteeing quality, and comprehensive after-sales service is provided for your peace of mind.

Calcination anthracite carbon raiser

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Zhengzhou Rongsheng Refractory Materials Co., Ltd., a national high-tech enterprise, meticulously manufactures high-purity petroleum coke for carbon additives for the metallurgical industry. This product is manufactured using advanced technology and features high purity, low heat impurities, and uniform particle size. Its outstanding thermal stability and high strength allow it to maintain good performance even at extreme temperatures, effectively and significantly increasing the carbon content in steel, thereby improving the quality of end products. This petroleum coke undergoes rigorous quality control and testing, holds a series of international certifications such as ISO, and is developed in collaboration with renowned research institutes, ensuring its reliable quality. We also provide comprehensive after-sales support, offering reliable and efficient solutions for your high-temperature industrial needs.

High-carbon graphite petroleum coke

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. has meticulously developed high-purity white zirconium silicate powder for ceramics. Utilizing advanced ultrafine grinding technology and surface modification treatment, the powder ensures uniform particle size and stable chemical properties. This product exhibits excellent high-temperature resistance, withstanding temperatures up to 2500℃, and possesses a stable refractive index of 1.93 to 2.01 and a Mohs hardness of 7.5, endowing ceramics with excellent wear and corrosion resistance. Due to its outstanding chemical stability, the powder is widely used in building ceramics, sanitary ceramics, and daily-use and luxury craft ceramics; it is also suitable for heavy-duty corrosion-resistant refractory materials and the glass industry, such as color picture tubes, emulsion glass, and enamel glazes. In plastic filler applications, it demonstrates good heat and chemical corrosion resistance. As a national high-tech enterprise, Rongsheng emphasizes product quality and service, holds multiple international certifications, ensures a stable and reliable supply, and is committed to providing high-performance ceramic material solutions to global customers.

Zirconium Silicate Powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. meticulously crafts customized corundum spinel powder with specific particle sizes for the international market, a high-quality refractory raw material. The product undergoes rigorous quality control, possessing excellent thermal stability, chemical corrosion resistance, and thermomechanical strength. Particle sizes of 0-1mm and 1-3mm are available to fully meet the diverse needs of different customers. This product is widely used in industries such as steel, ceramics, cement, and glass, and performs particularly well in ceramic kiln furniture, refractory bricks, and refractory castables. Furthermore, it has obtained international certifications such as ISO9001 and ISO14001, and provides professional after-sales consultation and installation guidance services, offering reliable refractory material solutions for international buyers.

Andalusite Powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. produces calcined corundum for wear resistance materials, made from natural bauxite through high-temperature calcination. Its alumina content is 60%-85% or higher, with a refractoriness of up to 1790°C. It possesses excellent chemical stability, maintaining stable performance even in complex chemical environments. Its high hardness and outstanding wear resistance allow it to withstand high-intensity friction. The company boasts advanced automated production lines and strict quality control; each batch of products undergoes rigorous testing and has obtained international certifications such as ISO9001, ensuring quality. Customized particle size services are also available to meet the diverse needs of different customers. Rongsheng's professional technical team and after-sales support provide high-quality services to customers worldwide.

Calcinated bauxite

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. meticulously crafts high-strength mullite refractory materials with uniform thermal expansion. These materials are made from high-quality quartz sand and industrial alumina, melted in an electric arc furnace. The products possess a highly developed needle-like crystal structure, uniform thermal expansion, high strength, excellent thermal shock resistance, high softening point under load, low creep at high temperatures, high hardness, and excellent chemical corrosion resistance. Certified by international standards such as ISO9001 and ISO14001, quality is guaranteed. As a high-tech enterprise, Rongsheng strictly controls quality, possesses professional technical support and a global sales network, and provides comprehensive after-sales service and customized solutions to meet your diverse needs.

Fused Mullite Refractory Material

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. independently develops and produces high-purity 98% silicon carbide powder, made from carefully selected quartz sand, petroleum coke, and sawdust through a high-temperature smelting process. This product boasts a hardness of up to 9.2, excellent wear resistance, good thermal conductivity, and extremely low impurities, ensuring outstanding performance in metallurgy, ceramics, abrasives, and high-temperature refractories. The product is widely used in the power, steel, and petrochemical industries, meeting the stringent requirements for material stability and durability under high-temperature conditions. The company has obtained ISO9001 and ISO14001 international certifications and possesses advanced automated production lines and a comprehensive quality control system, guaranteeing consistent and stable quality. We support customization of various particle sizes and provide professional pre-sales and after-sales technical support to meet the personalized needs of global customers, making us a trustworthy silicon carbide powder supplier.

Black silicon carbide powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. independently develops spherical ceramic sand refractory particles, refined using a high-purity alumina and silicate composite process. These particles possess excellent thermal stability (withstanding 1800℃), low thermal expansion rate, and strong thermal shock resistance. Their unique spherical structure significantly improves fluidity and filling density, reduces binder usage, enhances mold permeability, and effectively reduces the risk of casting defects such as cracks and porosity. The product complies with ISO9001 quality management system standards and is widely used in precision casting in the steel, non-ferrous metals (aluminum, copper, magnesium alloys), and machinery manufacturing industries. It is an ideal environmentally friendly alternative to chromite sand and zircon sand. Rongsheng provides customized formulations and global technical support services to ensure export customers receive stable and reliable high-quality casting materials.

Ceramic casting sand

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. specializes in producing ultra-pure white corundum with Al₂O₃ ≥ 99.5% and Na₂O ≤ 0.30%. It is smelted from high-quality industrial alumina in a 2250°C electric arc furnace, exhibiting excellent thermal stability (temperature resistance ≥ 1850°C), high hardness (Mohs hardness > 10), and a dense structure. The product boasts outstanding resistance to acid and alkali corrosion and is widely used in high-end refractory castables, precast bricks, and high-temperature kiln linings. It is particularly suitable for harsh operating environments such as steel smelting, power boilers, and petrochemical catalytic cracking. Certified by ISO9001 and CE, the company supports global technical support and customized solutions, helping customers improve equipment lifespan and operating efficiency. It is a high-quality refractory material raw material trusted by international customers.

White corundum

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. specializes in producing high-purity, custom-composition fused magnesia (FM-95-FM-98), manufactured using an electric arc melting process (temperatures exceeding 2750°C). The MgO content is as high as 95%-98%, with impurities such as SiO₂, Fe₂O₃, and Al₂O₃ controlled to extremely low levels. The products possess excellent thermal shock resistance, corrosion resistance, and high-temperature strength, and are widely used in harsh environments such as steel smelting, cement rotary kilns, and glass melting pools. Supporting ISO9001 quality system certification and CE/SGS international export standards, the company can flexibly adjust the chemical ratio according to customer needs to ensure performance matches different application scenarios, helping customers extend the service life of refractory materials and reduce kiln shutdown maintenance costs. It is a reliable partner for high-temperature industrial customers worldwide.

fused magnesia

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. meticulously crafts customized corundum spinel powder with specific particle sizes for the international market, a high-quality refractory raw material. The product undergoes rigorous quality control, possessing excellent thermal stability, chemical corrosion resistance, and thermomechanical strength. Particle sizes of 0-1mm and 1-3mm are available to fully meet the diverse needs of different customers. This product is widely used in industries such as steel, ceramics, cement, and glass, and performs particularly well in ceramic kiln furniture, refractory bricks, and refractory castables. Furthermore, it has obtained international certifications such as ISO9001 and ISO14001, and provides professional after-sales consultation and installation guidance services, offering reliable refractory material solutions for international buyers.

Andalusite Powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. produces calcined corundum for wear resistance materials, made from natural bauxite through high-temperature calcination. Its alumina content is 60%-85% or higher, with a refractoriness of up to 1790°C. It possesses excellent chemical stability, maintaining stable performance even in complex chemical environments. Its high hardness and outstanding wear resistance allow it to withstand high-intensity friction. The company boasts advanced automated production lines and strict quality control; each batch of products undergoes rigorous testing and has obtained international certifications such as ISO9001, ensuring quality. Customized particle size services are also available to meet the diverse needs of different customers. Rongsheng's professional technical team and after-sales support provide high-quality services to customers worldwide.

Calcinated bauxite

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. meticulously crafts high-strength mullite refractory materials with uniform thermal expansion. These materials are made from high-quality quartz sand and industrial alumina, melted in an electric arc furnace. The products possess a highly developed needle-like crystal structure, uniform thermal expansion, high strength, excellent thermal shock resistance, high softening point under load, low creep at high temperatures, high hardness, and excellent chemical corrosion resistance. Certified by international standards such as ISO9001 and ISO14001, quality is guaranteed. As a high-tech enterprise, Rongsheng strictly controls quality, possesses professional technical support and a global sales network, and provides comprehensive after-sales service and customized solutions to meet your diverse needs.

Fused Mullite Refractory Material

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. specializes in producing ultra-pure white corundum with Al₂O₃ ≥ 99.5% and Na₂O ≤ 0.30%. It is smelted from high-quality industrial alumina in a 2250°C electric arc furnace, exhibiting excellent thermal stability (temperature resistance ≥ 1850°C), high hardness (Mohs hardness > 10), and a dense structure. The product boasts outstanding resistance to acid and alkali corrosion and is widely used in high-end refractory castables, precast bricks, and high-temperature kiln linings. It is particularly suitable for harsh operating environments such as steel smelting, power boilers, and petrochemical catalytic cracking. Certified by ISO9001 and CE, the company supports global technical support and customized solutions, helping customers improve equipment lifespan and operating efficiency. It is a high-quality refractory material raw material trusted by international customers.

White corundum

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. specializes in producing high-purity, custom-composition fused magnesia (FM-95-FM-98), manufactured using an electric arc melting process (temperatures exceeding 2750°C). The MgO content is as high as 95%-98%, with impurities such as SiO₂, Fe₂O₃, and Al₂O₃ controlled to extremely low levels. The products possess excellent thermal shock resistance, corrosion resistance, and high-temperature strength, and are widely used in harsh environments such as steel smelting, cement rotary kilns, and glass melting pools. Supporting ISO9001 quality system certification and CE/SGS international export standards, the company can flexibly adjust the chemical ratio according to customer needs to ensure performance matches different application scenarios, helping customers extend the service life of refractory materials and reduce kiln shutdown maintenance costs. It is a reliable partner for high-temperature industrial customers worldwide.

fused magnesia

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. independently develops and produces high-purity 98% silicon carbide powder, made from carefully selected quartz sand, petroleum coke, and sawdust through a high-temperature smelting process. This product boasts a hardness of up to 9.2, excellent wear resistance, good thermal conductivity, and extremely low impurities, ensuring outstanding performance in metallurgy, ceramics, abrasives, and high-temperature refractories. The product is widely used in the power, steel, and petrochemical industries, meeting the stringent requirements for material stability and durability under high-temperature conditions. The company has obtained ISO9001 and ISO14001 international certifications and possesses advanced automated production lines and a comprehensive quality control system, guaranteeing consistent and stable quality. We support customization of various particle sizes and provide professional pre-sales and after-sales technical support to meet the personalized needs of global customers, making us a trustworthy silicon carbide powder supplier.

Black silicon carbide powder

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Zhengzhou Rongsheng Kiln Refractory Materials Co., Ltd. has meticulously developed high-purity white zirconium silicate powder for ceramics. Utilizing advanced ultrafine grinding technology and surface modification treatment, the powder ensures uniform particle size and stable chemical properties. This product exhibits excellent high-temperature resistance, withstanding temperatures up to 2500℃, and possesses a stable refractive index of 1.93 to 2.01 and a Mohs hardness of 7.5, endowing ceramics with excellent wear and corrosion resistance. Due to its outstanding chemical stability, the powder is widely used in building ceramics, sanitary ceramics, and daily-use and luxury craft ceramics; it is also suitable for heavy-duty corrosion-resistant refractory materials and the glass industry, such as color picture tubes, emulsion glass, and enamel glazes. In plastic filler applications, it demonstrates good heat and chemical corrosion resistance. As a national high-tech enterprise, Rongsheng emphasizes product quality and service, holds multiple international certifications, ensures a stable and reliable supply, and is committed to providing high-performance ceramic material solutions to global customers.

Zirconium Silicate Powder

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Zhengzhou Rongsheng Refractory Materials Co., Ltd. independently develops spherical ceramic sand refractory particles, refined using a high-purity alumina and silicate composite process. These particles possess excellent thermal stability (withstanding 1800℃), low thermal expansion rate, and strong thermal shock resistance. Their unique spherical structure significantly improves fluidity and filling density, reduces binder usage, enhances mold permeability, and effectively reduces the risk of casting defects such as cracks and porosity. The product complies with ISO9001 quality management system standards and is widely used in precision casting in the steel, non-ferrous metals (aluminum, copper, magnesium alloys), and machinery manufacturing industries. It is an ideal environmentally friendly alternative to chromite sand and zircon sand. Rongsheng provides customized formulations and global technical support services to ensure export customers receive stable and reliable high-quality casting materials.

Ceramic casting sand

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