Black silicon carbide is a high-performance industrial material renowned for its exceptional hardness and durability. As a key player in the abrasives and refractory sectors, it serves B2B buyers seeking reliable solutions for manufacturing and processing needs.
Silicon Carbide (SiC), also known as Emery, is a high-performance material made by high-temperature smelting of high-quality quartz sand and petroleum coke in an electric furnace. It has a hardness just below diamond and mechanical strength superior to alumina. Silicon carbide is a covalent-bonded material, with both silicon (Si) and carbon (C) forming four bonds. Its unique network structure gives it high strength, excellent high-temperature resistance, exceptional wear resistance, and superior resistance to acid and alkali corrosion.
Black silicon carbide boasts several standout features that make it ideal for demanding industrial environments. Its primary composition includes silicon and carbon, resulting in a crystalline structure that provides excellent resistance to wear and tear.
One key feature is its high thermal conductivity, allowing it to withstand extreme temperatures without degrading. Additionally, it exhibits low thermal expansion, ensuring stability in fluctuating conditions commonly found in manufacturing processes.
Black Silicon Carbide features a unique combination of physical and chemical properties that make it an indispensable material in high-performance industrial applications. Produced by the high-temperature smelting of quartz sand and petroleum coke, it offers exceptional hardness and sharpness.
One of its defining characteristics is its angular and brittle grain structure, which delivers rapid material removal and consistent cutting performance. It can withstand extreme temperatures up to 2000°C, making it suitable for use in refractory linings and high-temperature environments.
The material also has a high degree of thermal conductivity, allowing for efficient heat dissipation during aggressive grinding operations. With minimal impurities and excellent chemical stability, it performs reliably even in corrosive or chemically reactive conditions.
When compared to alternatives like aluminum oxide or green silicon carbide, black silicon carbide offers distinct advantages that appeal to discerning B2B buyers. Its greater hardness provides faster material removal rates, reducing processing time in abrasive applications.
Unlike aluminum oxide, which is softer and wears out quicker, black silicon carbide maintains sharpness longer, leading to cost efficiencies. Green silicon carbide, while similar, is often more expensive and less versatile for general-purpose use.
For B2B buyers, these advantages translate to enhanced supply chain resilience and better return on investment in a volatile market.
Black Silicon Carbide is engineered to meet strict industrial standards such as ISO and FEPA, offering consistent performance across a wide range of abrasive and refractory applications. Composed primarily of high-purity silicon carbide, it delivers exceptional hardness and thermal resistance, even in the most demanding environments.
Its chemical composition typically includes 98.5% or more SiC, with minimal levels of free carbon and iron oxide, ensuring reliable results in high-precision processes. Physically, it exhibits a Mohs hardness of 9.2 to 9.3 and a bulk density ranging from 1.45 to 1.65 g/cm³, making it suitable for aggressive cutting, blasting, and thermal applications.
Available in a broad range of grit sizes from F12 to F220, as well as JIS and P-series equivalents, Black Silicon Carbide can be customized to meet specific industrial needs. Standard packaging includes 25kg bags and 1-ton jumbo bags to ensure easy transport and storage for international trade.
| Form | Granularity | SiC≥(%) | Fe2O3≤(%) | F.C.≤(%) | Bulk Density（/cm³） | Magnetic content≤（%） |
| Marco Grits | F8-F90 | 98.7 | 0.15 | 0.15 | 1.35～1.51g | 0.01 |
| F100-F180 | 98.5 | 0.2 | 0.2 | 1.38～1.50 | 0.01 | |
| F220-F240 | 98.3 | 0.2 | 0.2 | 1.32～1.42 | 0.01 | |
| Micro Powder | F280 | 98.5 | 0.19 | 0.18 | 0.18 | 0.01 |
| F320 | 98.5 | 0.19 | 0.18 | 0.18 | 0.01 | |
| F400 | 98.5 | 0.19 | 0.18 | 0.18 | 0.015 | |
| F500 | 98.5 | 0.2 | 0.2 | 0.2 | 0.015 | |
| F600 | 98.5 | 0.2 | 0.2 | 0.2 | 0.015 | |
| F800 | 98 | 0.2 | 0.2 | 0.2 | 0.008 | |
| F1000 | 98 | 0.2 | 0.2 | 0.2 | 0.008 | |
| F1200 | 98 | 0.2 | 0.2 | 0.2 | 0.005 | |
| F1500 | 98 | 0.2 | 0.2 | 0.2 | 0.005 | |
| F2000 | 97.5 | 0.2 | 0.2 | 0.2 | 0.005 | |
| F2500 | 97.5 | 0.2 | 0.2 | 0.2 | 0.007 | |
| F3000 | 97.5 | 0.2 | 0.22 | 0.22 | 0.007 | |
| F4000 | 97.5 | 0.2 | 0.22 | 0.22 | 0.005 | |
| F6000 | 97 | 0.22 | 0.22 | 0.22 | 0.005 | |
| F8000 | 97 | 0.22 | 0.22 | 0.22 | 0.005 |
The benefits of Black Silicon Carbide go beyond its exceptional hardness and cutting ability, offering versatile, high-performance solutions for a wide range of industrial sectors. Its sharp angular grains deliver rapid cutting action, which significantly improves processing speed and surface quality.
With excellent thermal and chemical stability, Black SiC performs reliably in high-stress environments, reducing equipment wear and minimizing the need for frequent tool replacement. This makes it a preferred choice for industries seeking long-term efficiency and consistency.
From an environmental standpoint, Black Silicon Carbide is reusable in many blasting and grinding operations, contributing to reduced waste and lower operational costs. Its low iron content also makes it suitable for precision applications that require minimal contamination.
We can offer 1MT/25Kg Woven plastic bags, and 25Kg Paper bags.
Our Black Silicon Carbide is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Black Silicon Carbide is a synthetic abrasive made by smelting quartz sand and petroleum coke in an electric resistance furnace. It results in sharp, hard crystalline grains ideal for grinding and cutting applications.
It is widely used in abrasives (grinding wheels, sandblasting media), refractory linings, ceramics processing, and metallurgical additives.
Black SiC is tougher and more economical, ideal for heavy-duty grinding, while Green SiC is purer and sharper, used in precision applications like glass and semiconductor polishing.
Yes, it remains stable at temperatures exceeding 2000°C, making it perfect for refractory and metallurgical applications.
It is available in a full range of grit sizes from F12 to F220, as well as micropowder grades, based on FEPA, JIS, or ANSI standards.
It should be kept in a dry, cool place, sealed to avoid moisture and prevent particle clumping or contamination.
Yes, in many blasting or filtration applications, Black SiC can be reclaimed and reused multiple times without major performance loss.
Yes, due to its low iron and impurity content, it is suitable for precision manufacturing environments such as electronics and ceramics.
We offer 25kg plastic bags, 1-ton jumbo bags, and customized packaging solutions depending on customer needs.
Our Black SiC is exported globally from our factory in China, with reliable logistics support for B2B clients across Europe, South Africa, Southeast Asia, and the Americas.
Founded in 2005, our company is a leading manufacturer of high-quality Silicon Carbide (SiC) and various types of fused alumina products. With nearly two decades of industry expertise, we have established a reputation for delivering durable and performance-driven materials for a wide range of applications, including abrasives, refractories, and ceramics.
