Tires
Choosing carbon black for tires means choosing a structural component, not a filler. Tread…
N339 Carbon Black Hard grade Origin: Iran
N339 Carbon Black
N339 carbon black is a high-structure, high-modulus hard grade. It offers excellent abrasion resistance, improved extrusion behavior and better hysteresis characteristics.
- HS Code
- 2803.00
- Minimum order
- 1 pallet
- Delivery terms
- EXW · FOB · CFR · CIF · DDP
N339 carbon black belongs to the same particle size class as N330 but has a markedly higher structure (OAN 120 ml/100 g versus 102 for N330). In the compound, this difference shows up as higher modulus, better dispersion and smoother extrusion.
What the difference in structure means
The aggregates of a high-structure carbon black are more branched and occupy a larger volume within the rubber. At the same loading, this means a stiffer compound. The compound also collapses less during processing and swells less on extrusion.
Comparison
For higher abrasion resistance, consider N234; for lower structure and higher oil loading capacity, N375.
Applications
Passenger car tire treads, subtread layers, conveyor belts, mechanical rubber goods.
Technical Specifications
| # | Property | Value | Unit |
|---|---|---|---|
| 01 | Iodine adsorption number ASTM D1510 | 90 ± 5 | g/kg |
| 02 | Oil absorption number (OAN) ASTM D2414 | 120 ± 5 | ml/100 g |
| 03 | Compressed oil absorption number (COAN) ASTM D3493 | 99 ± 5 | ml/100 g |
| 04 | Pour density ASTM D1513 | 345 ± 20 | kg/m³ |
| 05 | Heating loss (max) ASTM D1509 | 1 | % |
| 06 | Toluene discoloration (min) ASTM D1618 | 85 | % |
| 07 | pH ASTM D1512 | 7.5 – 9 | |
| 08 | Fines content — Q-Bag (max) ASTM D1508 | 7 | % |
| 09 | Fines content — bag (max) ASTM D1508 | 10 | % |
| 10 | Individual pellet hardness — single max (20 pellets) ASTM D5230 | 50 | cN |
| 11 | Individual pellet hardness — average (20 pellets) ASTM D5230 | 10 – 40 | cN |
| 12 | Sieve residue — No. 35 US Std (max) ASTM D1514 | 10 | ppm |
| 13 | Sieve residue — No. 325 US Std (max) ASTM D1514 | 1,000 | ppm |
| 14 | Ash content (max) ASTM D1506 | 0.75 | % |
| 15 | Sulfur content (max) ASTM D1619 | 2 | % |
| 16 | Nitrogen surface area (NSA) ASTM D6556 | 91 ± 5 | m²/g |
| 17 | External surface area (STSA) ASTM D6556 | 88 ± 5 | m²/g |
| 18 | Tint strength ASTM D3256 | 111 ± 5 | % |
| 19 | Particle size | 26 – 30 | nm |
Values are manufacturer specifications; ± indicates the production tolerance. Every shipment is sent with a certificate of analysis (CoA) for that batch from an ISO/IEC 17025 accredited laboratory.
Packaging and Loading
| Packaging Type | Net Weight | Per Pallet | Container / Truck |
|---|---|---|---|
| Jumbo bag (PP-PE, double valve) | 1,000 kg | 1,000 kg | 20' FCL 10 pallets / 10,000 kg · 40' FCL 20 pallets / 20,000 kg · Truck 22 pallets / 22,000 kg |
| Two-ply kraft paper-PE bag | 21 kg | 1,155 kg | 20' FCL 9,240 kg · 40' FCL 18,480 kg · Truck 20,790 kg |
Certificates
Technical Data Sheet (TDS)Available on request
Safety Data Sheet (SDS)Available on request
- ISO 9001
- ISO 14001
- ISO 45001
- ISO/IEC 17025
Key Features
- High structure and high modulus — Builds a strong network in the compound with an OAN of 120 ml/100 g.
- Excellent abrasion resistance — Raises mileage performance in tread compounds.
- Improved extrusion properties — Smooth surface and low die swell thanks to high structure.
- Improved hysteresis — Limits energy loss compared with N330.
Industries Served
Industrial Rubber
Carbon black for rubber products beyond tires: conveyor belts, hoses, seals, diaphragms…
Similar Grades
Trial program
How does it work?
1-pallet trial offer
Test the product and return it if you are not satisfied. No obligation.
Frequently Asked Questions About This Product
What is the main difference between N339 and N330?
Both are in the same particle size class (26–30 nm), but N339 has a higher structure: OAN 120 ml/100 g versus 102 for N330. This gives N339 higher modulus, better extrusion behavior and higher abrasion resistance.
Which tire component is N339 used in?
Mainly in passenger car tire treads and subtread layers. It is also chosen for conveyor belt cover compounds and for mechanical rubber goods where high performance is expected.
What packaging is N339 available in?
We offer two options: a 1,000 kg double-valve PP-PE jumbo bag and a 21 kg two-ply kraft paper-PE bag. A pallet of bags holds 1,155 kg of product; a 20' container takes 9,240 kg and a truck 20,790 kg. With jumbo bags, these figures are 10,000 kg and 22,000 kg respectively.
Does N339 come with a certificate of analysis and a safety data sheet?
Yes. Every shipment is sent with a certificate of analysis (CoA) for that batch, issued by an ISO/IEC 17025 accredited laboratory. We send the safety data sheet (SDS) on request; if you would like to see a sample report before ordering, you can ask for one through the quote form.