The 4th manufactuers of carbon black In China with 200000 MTs per year Speciality Grade Carbon Blacks N220, N234, N330, N326, N339, N375, N539, N550, N660,
USDED IN Tyre, Rubber, Conveyer Belt, Plastic, Master Batch, Printing Ink, Paints, Cover, Cable Wire and so on.
We have ISO9001,HOS 14001 ,Reach Certificate.
SGS Certificate .
The specifications of N660 are as:
| TECHNICAL SHEET (STANDARD:GB3778-2003 & ASTMD1765-91) |
| NO. | Item | Unit | Grade | N660 |
| 1 | Iodine Adsorption Number | g/kg | Superior | 36±4 |
| Qualified | 36±6 |
| 2 | DBP Absorption Number | 10 -5 m 3 /kg | Superior | 90±5 |
| Qualified | 90±7 |
| 3 | Compressed DBP Absorption Number | 10 -5 m 3 /kg | Superior | 69~79 |
| Qualified | 66~82 |
| 4 | CTAB Surface Area | 10 3 m 2 /kg | Superior | 31~41 |
| Qualified | 29~43 |
| 5 | Nitrogen Surface Area | 10 3 m 2 /kg | Superior | 31~39 |
| Qualified | 29~41 |
| 6 | STSA | 10 3 m 2 /kg | Superior | 34±5 |
| Qualified | 34±9 |
| 7 | Tint Strength | % | Superior | ¬ |
| Qualified | ¬ |
| 8 | PH Value |
| Qualified | 7±1.5 |
| 9 | Heating Loss | %≤ | Qualified | 1.5 |
| 10 | Ash Content | % ≤ | Qualified | 0.7 |
| 11 | 45 um Mesh | % ≤ | Superior | 0.05 |
| Qualified | 0.10 |
| 12 | Impurity |
| Qualified | NO |
| 13 | Fines Content | %≤ | Qualified | 7 |
| 14 | Toluene Discoloration | % max 1618 | Qualified | 80 |
| 15 | Sulfur | % max 1619 | Qualified | 1.1 |
| 16 | Pour density | kg/m3 | Qualified | 440±40 |
| 17 | Modulus at 300% | mpa | Superior | -2.6±1.0 |
| Qualified | -2.6±1.6 |
| Hebei Daguangming Ind.Group,Juwuba Carbon Black Co.,Ltd. |
Establishing in 1996, with The Attention of National, Provincial and City Leaders as Well as Great Support of Various Kinds of Functional Department, We Hebei Daguangming Ind. Group Co., Ltd. Has Experienced Difficult Period and Developed Into a Powerful Diversified Private Enterprise.
Specializing in Carbon Black, Glass Industries, Together with Electricity Generation Industry. Our Company Has Stepped Into The Top 100 Enterprises of Hebei Province in 2003. There Are 1100, 000, 000RMB of Total Assets and 2000 Workers Including 640 Professional and Technical Personnels in Our Company. We Have The Self-Management Import and Export Power, and External Economic and Technological Cooperation Rights. "Juwuba" Carbon Black and "Jiajing" Glass Have a Great Reputation at Home and Aboard
