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CARBON BLACK N550 is a petroleum product and Arena Petro Gas is in position to supply and export it directly from the top producers through its trading services according to the following specification and technical properties.

Carbon black N550 is a type of petroleum product that is used as a reinforcing filler in rubber compounds. It has a medium particle size and a medium-high structure, which means that it forms aggregates of primary particles with some branching. Carbon black N550 has a high oil absorption number, which indicates its affinity for rubber and its ability to improve the physical properties of rubber products.

Some of the uses of carbon black N550 are:
  • Tire treads: Carbon black N550 can enhance the wear resistance, traction, and rolling resistance of tires. It can also improve the heat dissipation and thermal conductivity of tires, which are important for high-speed performance and durability.
  • Conveyor belts: Carbon black N550 can increase the tensile strength, modulus, and abrasion resistance of conveyor belts, which are exposed to high mechanical stress and friction. It can also reduce the expansion and deformation of conveyor belts under high temperature and pressure.
  • Rubber hoses: Carbon black N550 can improve the flexibility, elasticity, and rebound of rubber hoses, which are used for various fluid transfer applications. It can also prevent cracking and aging of rubber hoses due to ozone and ultraviolet exposure.
The technical specifications of carbon black N550:
  • Iodine adsorption number: 43 ± 5 g/kg
  • Oil absorption number: 121 ± 5 cm3/100g
  • Sieve residue 45 µm (No.325): ≤ 0.1 %
  • Sieve residue 500 µm (No.35): ≤ 0.001 %
  • Heating loss: ≤ 1.0 %
  • Ash content: ≤ 0.75 %
  • Pour density: 360 ± 25 kg/m3
  • Fines content: ≤ 7 %
  • pH value: 7 - 10
  • Sulfur content: ≤ 1.1 %
  • Individual pellet hardness (average of 20): ≤ 55 g
  • Individual pellet hardness (max of 20): ≤ 85 g
  • Toluene discoloration: ≥ 80 %
  • BET surface area (NSA): 40 ± 5 m2/g
  • External surface area (STSA): 39 ± 5 m2/g
  • Oil absorption number of compressed sample: 85 ± 5 cm3/100g

Related Products:

Finally, if you are looking for CARBON BLACK N550 from the top producers plants, Arena Petro Gas company is ready to supply you as its trading services according to your requirements and in accordance to the manufacturers' specifications, you can easily submit your order online.
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Carbon Black N550

Carbon Black N550 is a type of carbon black with specific properties that make it valuable in various applications. Let’s explore its characteristics, uses, and manufacturing in more detail.


Carbon black is meticulously produced under controlled conditions, with over 97% of its composition being pure carbon. Unlike ordinary soot, which consists of impure carbon, carbon black serves as a versatile filler material. It impacts mechanical, electrical, and light-transmittance properties in elastomers, plastics, inks, and rubber.


  • Particle Size: Carbon black N550 has a smooth particle surface and high structure, resulting in excellent reinforcement properties among soft carbon blacks.
  • Aggregate Size: Carbon black particles coalesce during formation to form aggregates. The degree of branching in these aggregates affects properties like modulus, hardness, and compound viscosity.
  • Surface Activity: The organophilic nature of the carbon black surface enhances abrasion resistance, tensile strength, and hysteresis in rubber compounds.
  • Porosity: Carbon black’s porosity affects surface area measurements, impacting reinforcement.


  1. Tire Industry: Carbon black N550 is predominantly used in tire carcasses, inner tubes, and tire sidewall compounds.
  2. Rubber Goods: It finds applications in gaskets, molded articles, profiles, and technical seals.
  3. Cable Jacketing: Carbon black N550 contributes to cable insulation and protection.
  4. Plastic Compounds: When employed as a filler in plastics, it enhances properties such as abrasion resistance, wear resistance, and toughness.

CARBON BLACK N550 trading supplier in Iran

Manufacturers in Iran

  • Sanati Dode Fam (Sadaf) Co.: Recognized as the largest carbon black manufacturer in Iran, Sadaf Co. produces industrial carbon black in both hard and soft grades. They have secured a significant market share within the tire and rubber industry and are also the largest carbon black exporter in Iran.
  • Other manufacturers and suppliers in Iran also contribute to the production of carbon black.
In summary, Carbon Black N550 plays a crucial role in various industries, offering reinforcement, protection, and improved material properties. Its widespread use underscores its significance in modern manufacturing processes.


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