High-Purity Spherical Silicon Powder 10-20μ M

• Customization: Available
• Certification: ISO
• Application: Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass
• Model NO.: SQ
• Transport Package: Paper Bag, Big Bag, Pallet
• Specification: SiO2>99.6%
• Trademark: ST
• Origin: Lianyungang, China
• HS Code: 2811229000
• Production Capacity: 50000pieces/Year

Product Description

Product Overview

Specially developed for high-end material applications, this large-particle spherical silicon powder is produced via plasma atomization, offering ultra-high purity (≥99.6%) and near-perfect sphericity (≥97%). The unique 10-20μm particle size design significantly enhances flowability, making it an ideal choice for thermal conductive materials, electronic packaging, 3D printing, and other advanced applications.

Core Advantages

 Exceptional Purity Standards: Metallic impurity content <400ppm, certified by ICP-MS testing
 Industry-Leading Sphericity: Sphericity rate ≥97%, smooth surface without burrs
 Tailored Particle Size Distribution: D50 controlled at 15±2μm, optimized for high-precision coating and filling processes

Technical Parameters
 

Parameter	Value
Purity	≥99.6%
Sphericity	≥97%
Particle Size Range	10-20μm (D90 controlled)
Oxygen Content	≤800ppm
Tap Density	≥1.6g/cm³
Specific Surface Area	0.5-1.2m²/g

Typical Applications

High-end electronic packaging materials (EMC, Underfill)
Thermal grease/thermal pad filler reinforcement
Ceramic substrate (LTCC/HTCC) sintering aid
Additive manufacturing (3D printing) powder material
Anti-settling agent for specialty coatings

Packaging & Shipping

25kg/bag (customizable)

Quality Certifications

▫ ISO 9001:2015 Quality Management System
▫ SGS COA Test Report
▫ Particle size analysis report provided

Service Commitment

♦ Free samples available (500g trial sample)
♦ Professional technical team for application support
♦ Strict confidentiality of customer project information

 

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