BHD Chemical supplies carbon black N660, an N-series grade, to the limits in its technical data sheet (BHD_TDS_N660). The specification table covers iodine adsorption, DBP oil absorption, tint strength, toluene extract transmittance, pellet hardness, pellet fines, pour density, sieve residue, heating loss, ash content and pH. The carbon-black family is used to make vehicle tyres. Quotes are based on grade, volume, destination and delivery window, and the TDS is available on request.
Carbon black N660 is an N-series grade that BHD Chemical supplies to fixed limits on its technical data sheet, from iodine adsorption and DBP absorption to pellet hardness, fines and ash. We quote against that specification, for your volume, destination and delivery window, with one accountable house behind the order: on spec and on time.
| Property | Value | Unit | Method |
|---|---|---|---|
| Iodine Adsorption Number | 31.0 - 41.0 | mg/g | ASTM D-1510 |
| Oil Absorption Number (DBP) | 85.0 - 95.0 | cm3/100 g | ASTM D-2414 |
| Tint Strength | 52.0 - 65.0 | %IRB3 | ASTM D-3265 |
| Pelleted Pour Density | 420 - 460 | kg/m3 | ASTM D-1513 |
| Toluene Extract Transmittance | min 75.0 | % | ASTM D-1618 |
| pH Value | 7.5 - 9.0 | — | ASTM D-1512 |
| Ash Content | max 0.75 | % | ASTM D-1506 |
| Heating Loss | max 1.0 | % | ASTM D-1509 |
| Pellet Fines | max 10.0 | % | ASTM D-1508 |
| Sieve Residue | max 1000 | ppm | ASTM D-1514 |
| Individual Pellet Hardness | average 10 - 40; max 50 | cN | ASTM D-3313 |
Key characteristics
Semi-reinforcing carbon black for general-purpose rubber compounds
Consistent pellet quality batch to batch
Documented ash and heating-loss control confirmed per shipment
Stable dispersion behavior supporting predictable compounding
Supplied to specification with full traceability to origin
Quietly reliable performance across production runs
What carbon black N660 is, and what we commit to
Carbon black N660 is a grade in the N-series of carbon blacks, specified by surface area, structure and pellet properties. BHD Chemical supplies it against the limits in our technical data sheet, BHD_TDS_N660. The specification table on this page carries every value; the notes below explain how each reader can use them.
We do not quote a grade loosely. When you ask for N660, you are asking for material held to the stated windows, and that is what our quote refers to.
How the specification answers each buyer
For the compounding chemist
Your formulation is built on iodine number, DBP absorption and tint strength. The TDS states each as a range, so you can check whether our N660 sits inside the windows your compound depends on before any lab work starts. Toluene extract transmittance is stated as a minimum, which gives a clear reference for toluene discoloration checks.
If you need to qualify the grade, request the TDS or a sample, and run it against your own recipe.
For production and quality control
Line behavior depends on the pellet. The TDS sets limits for individual pellet hardness, pellet fines, pour density and sieve residue, alongside heating loss, ash content and pH. These are the figures most plants use to set incoming-inspection limits for conveying, weighing and dispersion.
Request the TDS and write your acceptance criteria straight from it.
For procurement
You get a named grade, fixed spec limits and one accountable contact at BHD Chemical, not a broker quoting "best prices" from an unnamed source. Tell us the volume, destination, preferred Incoterms and the delivery window you plan production around. We will state plainly what we can commit to.
Documentation and quality practice
Every quote refers to the N660 technical data sheet. Batch results, packaging format and lead time are confirmed for your order and stated in the quote and batch documentation, so what you approve on paper is what you inspect at the gate.
Part of a wider catalogue, from two divisions and one house
N660 sits within our carbon black range at BHD Chemical, alongside other N-series grades, rubber process oils and industrial chemicals. BHD Sourcing handles our waxes business, including paraffin wax, slack wax and petroleum jelly. Browse the full range on our products page.
Request a quote for carbon black N660
Send us the grade, volume, destination and delivery window. If your team needs the specification first, ask for the N660 TDS and we will send it.
Carbon Black
CoA supplied per shipment.
Frequently asked questions
What documentation comes with each shipment?
Each shipment is supported by a certificate of analysis confirming the batch meets the technical data sheet.
What is the minimum order quantity?
Minimum order quantities are confirmed at quotation stage against your volume and destination.
What is the lead time for Carbon Black N660?
Lead time is confirmed at quotation stage against volume and destination.
How is Carbon Black N660 packaged?
Packaging is confirmed at quotation stage to match your order and destination requirements.
Can I get a certificate of analysis for my specific batch?
The CoA carries the measured values for each shipped batch.
If the grade you need is not listed here, tell us the specification and volume and BHD Sourcing will find it — request a quote.
Why buyers work with BHD Group
Two divisions operate under a single accountable house. There is no handoff between a trading desk and a sourcing desk that leaves a buyer chasing an answer — one team owns the order from enquiry to delivery.
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