Tires
Choosing carbon black for tires means choosing a structural component, not a filler. Tread…
N234 Carbon Black Hard grade Origin: Iran
N234 Carbon Black
N234 carbon black combines high structure and high modulus. It delivers superior abrasion resistance and durability in radial tire treads and reinforced rubber products.
- HS Code
- 2803.00
- Minimum order
- 1 pallet
- Delivery terms
- EXW · FOB · CFR · CIF · DDP
N234 carbon black is the classic choice for high-performance radial tire treads. With an iodine adsorption of 120 g/kg and an oil absorption of 125 ml/100 g, it offers the advantages of both small particle size and high structure.
What is the trade-off?
High surface area means high reinforcement, but it also means higher hysteresis loss and therefore more heat build-up. In applications that run continuously at high speed, this heat must be managed. Compound viscosity also rises, so the mixing protocol should be adjusted accordingly.
Applications
Radial tire treads, conveyor belt compounds, reinforced rubber products.
Technical Specifications
| # | Property | Value | Unit |
|---|---|---|---|
| 01 | Iodine adsorption number ASTM D1510 | 120 ± 5 | g/kg |
| 02 | Oil absorption number (OAN) ASTM D2414 | 125 ± 5 | ml/100 g |
| 03 | Compressed oil absorption number (COAN) ASTM D3493 | 102 ± 5 | ml/100 g |
| 04 | Pour density ASTM D1513 | 320 ± 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 | 119 ± 5 | m²/g |
| 17 | External surface area (STSA) ASTM D6556 | 112 ± 5 | m²/g |
| 18 | Tint strength ASTM D3256 | 123 ± 5 | % |
| 19 | Particle size | 20 – 25 | 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 | 20 kg | 1,100 kg | 20' FCL 8,800 kg · 40' FCL 17,600 kg · Truck 19,800 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 — OAN 125 ml/100 g: one of the highest-structure grades in the range.
- Superior abrasion resistance — Long service life in radial tread compounds.
- Improved extrusion and processing — Processes easily despite its high structure.
- Suitable for different elastomers — Stable performance in NR, SBR and BR systems.
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
Which tires is N234 used in?
It is the classic choice for high-performance radial tire treads. It is also used in conveyor belt compounds and in reinforced rubber products that require high abrasion resistance.
What should I watch for when using N234?
The combination of high surface area (NSA 119 m²/g) and high structure (OAN 125 ml/100 g) raises compound viscosity and increases heat build-up. Adjust the mixing protocol accordingly, and plan heat management for applications that run continuously at high speed.
What packaging is N234 available in?
We offer two options: a 1,000 kg double-valve PP-PE jumbo bag and a 20 kg two-ply kraft paper-PE bag. A pallet of bags holds 1,100 kg of product; a 20' container takes 8,800 kg and a truck 19,800 kg. With jumbo bags, these figures are 10,000 kg and 22,000 kg respectively.
Does N234 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.