Carbon Black – N220, N231, N234, N326, N330, N339 Highly Reinforcing - Tire Grades CAS# 1333-86-4
These WESTCO™ Carbon blacks are fine particle size, highly reinforcing carbon blacks used most commonly in tire applications. Medium sized, semi-reinforcing grades for use in a variety of rubber compounds. They offer improved tensile strength and modulus as well as increased abrasion resistance in tires and other rubber products. The less reinforcing grades enhance the extrudability and mold flow of compounds while the highly reinforcing grades are recommended for compression molding applications.
SPECIFICATIONS:
ASTM Grade
|
N220
N231, N234, N326, N330, N339 |
N231 | N234 | N326 | N330 | N339 |
*Iodine Absorption #, g/kg
|
114-128
114-128, 113-127, 75-89, 78-89, 85-95 |
114-128 | 113-127 | 75-89 | 78-89 | 85-95 |
*DBP Absorption. cc/100g
|
107-121
86-98, 118-132, 65-79, 95-109, 115-125 |
86-98 | 118-132 | 65-79 | 95-109 | 115-125 |
*Heating Loss, % max
|
2.5
2.5, 2.5, 2.5, 2.5, 2.5 |
2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
*pH
|
5.5-8.5
5.5-8.5, 5.5-8.5, 5.5-8.5, 5.5-8.5 , 5.5-8.5 |
5.5-8.5 | 5.5-8.5 | 5.5-8.5 | 5.5-8.5 | 5.5-8.5 |
*Ash, % max
|
0.7
0.7, 0.7, 0.7, 0.7, 0.7 |
0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
*325 Mesh Sieve, % max
|
0.1
0.1, 0.1, 0.1, 0.1, 0.1 |
0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
*Average Pellet Hardness
|
25-55
20-50, 20-50, 20-50, 20-50, 20-50 |
20-50 | 20-50 | 20-50 | 20-50 | 20-50 |
*Individual Pellet Hardness, max
|
90
90, 90, 90, 90, 90 |
90 | 90 | 90 | 90 | 90 |
CTAB Surface Area, m²/g
|
102-120
104-118, 110-128, 74-92, 73-91, 86-96 |
104-118 | 110-128 | 74-92 | 73-91 | 86-96 |
Nitrogen Surface Area, m²/g
|
112-126
112-128, 112-126, 71-85, 71-85, 83-93 |
112-128 | 112-126 | 71-85 | 71-85 | 83-93 |
Tire Grade
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For Carbon Black – N220, N231, N234, N326, N330, N339 - Highly Reinforcing - Tire Grades
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