Low-Iron Crystalline Silica Powder for Refractories

• Customization: Available
• Certification: ISO
• Application: Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass
• Model NO.: SG
• Grain Fineness Distribution: D50(0.5μm-25μm)
• Transport Package: Paper Bag, Big Bag, Pallet
• Specification: SiO2>99%
• Trademark: ST
• Origin: Lianyungang, China
• HS Code: 2811229000
• Production Capacity: 50000pieces/Year

Product Description

Product Overview
Specially developed for the refractory industry, our low-iron crystalline silica powder is refined from high-purity quartz raw materials through specialized processes. With extremely low iron content and outstanding high-temperature resistance, it significantly enhances the thermal shock resistance, mechanical strength, and high-temperature stability of refractory products, making it an ideal additive for high-performance refractories.
 

Key Features
★ Ultra-Low Iron Content: Fe2O3 ≤ 0.05%, preventing discoloration at high temperatures
★ High Purity: SiO2≥ 99%, with minimal impurities
★ Excellent Temperature Resistance: Long-term service temperature up to 1650°C
★ Optimized Thermal Shock Resistance: Significantly improves refractory material's thermal shock resistance
★ Controllable Particle Size: Customizable D50 particle size range of 0.5-25μm
 

Typical Applications
• High-grade refractory bricks and unshaped refractory materials
• Refractory linings for steel metallurgy
• Refractory materials for glass furnaces
• Lining materials for cement rotary kilns
• Ceramic kiln furniture and high-temperature molds
 

Technical Advantages

• Magnetic separation process ensures compliance with iron content standards

• Strict particle size classification guarantees product consistency

• Surface modification services available (customizable upon request)
   

Specifications
Standard Packaging: 25kg/bag (custom packaging available)
Storage Conditions: Store in a dry, ventilated area to avoid moisture

Free samples and technical documentation available upon request! Customized product solutions can be provided based on your specific requirements.
 

Basic Parameters
 

Item	Unit	Typical Values
Exterior	/	white powder
Density	kg/m³	2.65 ×10^3
Moh's hardness	/	7
Coefficient of linear expansion	1/k	14×10^-6
Pyroconductivity	w/k.m	12.6
Refraction coefficient	/	1.54

 

Company Information:

Jiangsu Shengtian New Materials Co., Ltd. has a technical research and development team focusing on ultra-fine powder materials, and has strong strength in the research and development and production of ultra-fine functional materials, composite materials and related applications, and has become a more influential high-tech enterprise in the ultra-fine functional powder industry.
The company's products include crystalline silicon powder, molten silicon powder, soft composite silicon powder, spherical silicon powder, aluminum oxide powder, ceramic powder, glass powder and other ten categories, nearly 100 kinds of different specifications of products, and has a strong modification, compounding and other follow-up deep processing technology and capabilities. The products are processed by special technology, the production technology is leading and innovative, and the introduction of international technical standards for similar products, widely used in electronic packaging, copper clad plate, ink coating, adhesive, ceramics, precision casting, glass fiber, plastic rubber and other industries, giving its functionality while helping customers reduce costs. And provide the overall application of technology solutions.
The company has more than 20 different types of production lines, more than 100 sets of domestic advanced equipment, with an annual output of 50,000 tons. The company adopts professional production and testing equipment and formulates strict production quality control system to conduct all-round control of product quality. All products of the company have passed SGS environmental protection testing, in line with the EU ROHS green environmental protection standards. The company took the lead in the silicon powder industry through the ISO9001 quality management system certification and ISO14001 environmental management system certification, has passed the high-tech product identification. The company's products and solutions have been applied to more than 160 enterprises around the world, including more than 80 customers with stable cooperation for more than 10 years.

Workshop:
 

An excellent manufacturing enterprise

The company has 20 patents, the company has passed ISO9001 and ISO14001 certification, and has been recognized as a national high-tech enterprise