Carbon black

Tianjin Wangde Chemical Imp. & Exp. Co., Ltd. supplies carbon black in the standard N‑series grades N220, N330, N550 and N660. The iodine absorption values are 121 mg/g for N220, 82 mg/g for N330, 43 mg/g for N550 and 36 mg/g for N660. DBP absorption (10⁻⁵ m³/kg) ranges from 114 for N220 to 90 for N660, and nitrogen surface area varies between 109‑129 m²/g for N220 and 27‑43 m²/g for N660. Ash content is consistently 0.5 % across the grades.

These grades are widely recognised in the rubber and pigment sectors, where higher iodine numbers indicate finer particle size and greater reinforcement potential. Typical particle size for N‑series carbon black lies between 20 nm and 100 nm, and bulk density is usually 0.5‑0.9 g/cm³. Standard industry specifications such as ASTM D1765 classify these grades by iodine number and surface area, providing a common reference for buyers. The product appears as a black powder or granular form, matching the visual criteria expected for pigment and reinforcing applications.

The material is used principally in tire tread compounds, printing inks, paints and plastics, where it improves tensile strength and colour depth. Buyers such as tyre manufacturers, ink producers and polymer processors often request 25 kg net bags, with a typical loading of 16 mt per 20‑ft container. Packaging is supplied in 25 kg net bags stacked in a 20‑ft container, allowing efficient bulk handling. Pricing, MOQ and exact lead times are not disclosed; interested importers should confirm these trade details directly with the supplier.

Tianjin Wangde Chemical Imp. & Exp. Co., Ltd. is located on Jiulong Street in Tianjin, China (postal code 300350). The supplier is classified as an imported‑tier company with a harbour‑level trust tier, indicating it operates through maritime channels and meets basic verification standards. Response data shows a zero percent response rate and no recorded average response time, suggesting that prospective buyers should initiate contact well in advance to secure communication.

The company lists carbon black as its primary product, offering the N‑series grades in 25 kg net bags suitable for bulk shipment. No additional certifications, capacity limits or client references are provided in the source data, so buyers should request any required test reports or compliance documents directly from the supplier.