We -Hebei Daguangming Ind. Group, is the 4th Manufactuer of Carbon in China. The annual production is 140000Mts and will be expected to 170000Mt Next year.
We mainly produce: N220, N234, N375, N550, N326, N339, N660, N330. Grade wet processed granular carbon black, and have the potential to produce 20 grade carbon black if the quantity is suitable.
Our products follow the specification of GB3778-2003 Standard, and reaches ASTM-Standard.
Our Group got the Quality Certificate: ISO9001: 2008, Environmental Certificate ISO4001: 2004 Standard. Occupation Cetificate: 28001: 2001
And other details as:
Packing: 25kgs/bag, 20kgs/bag, 500kgs/bag, 1000kgs/bag
Delivery: 3 week upon confirm the order
Terms of payment: By T/T or L/C at sight.
| TECHNICAL SHEET(STANDARD:GB3778-2003 & ASTM-STANDARD) |
| Item |
Unit |
Grade |
N220 |
N234 |
N330 |
N326 |
N339 |
N375 |
N550 |
N660 |
| Iodine Adsorption Number |
g/Kg |
superior |
121±5 |
120±5 |
82±5 |
82±5 |
90±5 |
90±5 |
43±4 |
36±4 |
| Qualified |
121±7 |
120±7 |
82±7 |
82±7 |
90±7 |
90±7 |
43±6 |
36±6 |
| DBP Absorption Number |
10 -5 m 3 /kg |
superior |
114±5 |
125±5 |
102±5 |
72±5 |
120±5 |
114±5 |
121±5 |
90±5 |
| Qualified |
114±7 |
125±7 |
102±7 |
72±7 |
120±7 |
114±7 |
121±7 |
90±7 |
| Compressed DBP Absorption Number |
10 -5 m 3 /kg |
|
93~103 |
97~107 |
83~93 |
64~72 |
94~104 |
91~101 |
80~90 |
69~79 |
| Qualified |
90~106 |
94~110 |
80~96 |
62~74 |
91~107 |
88~104 |
77~93 |
66~82 |
| CTAB Surface Area |
10 3 m 2 /kg |
superior |
105~117 |
113~125 |
76~88 |
77~89 |
87~99 |
90~102 |
37~47 |
31~41 |
| Qualified |
102~120 |
110~128 |
73~91 |
74~92 |
84~102 |
87~105 |
35~49 |
29~43 |
| Nitrogen Surface Area |
10 3 m 2 /Kg |
superior |
114~124 |
114~124 |
73~83 |
73~83 |
86~96 |
88~98 |
34~44 |
31~39 |
| Qualified |
112~126 |
112~126 |
71~85 |
71~85 |
84~98 |
86~100 |
34~46 |
29~41 |
| STSA |
10 3 m 2 /Kg |
superior |
106±5 |
112±5 |
75±5 |
76±5 |
88±5 |
91±5 |
39±5 |
34±5 |
| Qualified |
106±9 |
112±9 |
75±9 |
76±9 |
88±9 |
91±9 |
39±9 |
34±9 |
| Tint strength |
% |
superior |
111~121 |
118~128 |
99~109 |
106~116 |
106~116 |
109~119 |
¬ |
¬ |
Qualified |
108~124 |
115~131 |
96~112 |
103~119 |
103~119 |
106~122 |
¬ |
¬ |
| pH Value |
|
Qualified |
7±1.5 |
| Heating Loss |
%≤ |
Qualified |
2.5 |
1.5 |
| Ash Content |
% ≤ |
Qualified |
0.7 |
| 45 um mesh |
% ≤ |
superior |
0.05 |
| Qualified |
0.10 |
| Impurity |
|
Qualified |
NO |
| Fines Content |
%≤ |
Qualified |
7 |
| Toluene Discoloration |
% max 1618 |
Qualified |
90 |
85 |
80 |
| sulfur |
% max 1619 |
Qualified |
1.1 |
1.5 |
1.1 |
| Pour density |
kg/m3 |
Qualified |
355±40 |
320±40 |
380±40 |
455±40 |
345±40 |
345±40 |
360±40 |
440±40 |
| Modulus at 300% |
MPa |
superior |
-2.3±1.0 |
-0.4±1.0 |
-0.9±1.0 |
-3.9±1.0 |
0.6±1.0 |
0.1±1.0 |
-0.9±1.0 |
-2.6±1.0 |
| Qualified |
-2.3±1.6 |
-0.4±1.6 |
-0.9±1.6 |
-3.9±1.6 |
0.6±1.6 |
0.1±1.6 |
-0.9±1.6 |
-2.6±1.6 |
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