For manufacturers in the rubber industry, the selection of the correct carbon black grade is paramount to achieving desired product characteristics. Among the most widely utilized is Carbon Black N330, a High Abrasion Furnace (HAF) black renowned for its balance of properties. However, understanding its place alongside other grades is crucial for optimizing formulations. As a dedicated supplier and manufacturer of carbon black in China, we aim to guide you through this critical decision-making process.

Carbon black serves as a vital reinforcing filler, significantly enhancing the physical properties of rubber compounds. These improvements typically include tensile strength, tear resistance, abrasion resistance, and elasticity. The specific performance of a carbon black is dictated by its particle size, surface area, and structure (DBP absorption). Generally, finer particle sizes and higher surface areas lead to greater reinforcement but can also increase hysteresis (heat build-up) and rolling resistance.

Understanding Carbon Black N330: The Versatile Performer

Carbon Black N330, often referred to as High Abrasion Furnace (HAF) black, is characterized by its medium structure and medium surface area. Its specifications, such as an iodine absorption value around 82 g/kg and DBP absorption around 102 cm³/100g, position it as a highly versatile grade. This makes it an excellent choice for tire treads, sidewalls, and various industrial rubber products like conveyor belts and hoses. The N330 grade offers a good balance of abrasion resistance, hysteresis, and processability, making it a workhorse in many rubber applications. Manufacturers seeking to buy Carbon Black N330 from a reliable China supplier will find it a cost-effective solution for achieving robust product performance.

Comparing N330 with Other Common Grades

When considering alternatives or complementary grades, it's helpful to understand their typical applications:

  • Carbon Black N220 (Intermediate Super Abrasion Furnace - ISAF): With a higher surface area than N330 (iodine absorption ~121 g/kg), N220 offers superior reinforcement and abrasion resistance. It's often used in high-performance tire treads for trucks and racing applications where extreme wear resistance is critical. If your goal is to purchase N220 for enhanced durability, our company can supply this grade as well.
  • Carbon Black N550 (General Purpose Furnace - GPF): N550 has a lower surface area and structure compared to N330 (iodine absorption ~43 g/kg). This makes it suitable for applications requiring good processability and moderate reinforcement, such as tire carcasses, inner tubes, and certain molded rubber goods where high abrasion is not the primary concern.
  • Carbon Black N774 (Semi-Reinforcing Furnace - SRF): This grade has a larger particle size and lower surface area (iodine absorption ~35-40 g/kg). N774 is primarily used for its excellent extrudability and low hysteresis, making it suitable for components like tire sidewalls and inner liners, or in applications where heat build-up needs to be minimized.

Sourcing Your Ideal Carbon Black from China

As a premier manufacturer and supplier of carbon black in China, NINGBO INNO PHARMCHEM CO.,LTD. offers a comprehensive range of grades, including N330, N220, and N550, to meet diverse industrial needs. Our commitment to quality ensures that every batch adheres to stringent specifications, providing you with the consistency required for your production processes. We understand the importance of timely delivery and competitive pricing for global buyers. Therefore, whether you are looking to buy Carbon Black N330 for tire manufacturing or explore other grades for specialized applications, our team is ready to assist you. Contact us today to discuss your requirements and secure a reliable supply of high-performance carbon black.