| ASTM NUMBERS |
FUNCTION & COMPOUNDING |
| |
| N110 |
Gives maximum abrasion resistance, highest reinforcement
and tensile. Used in off-the-road tire treads, tread rubber,
bridge pads and conveyor belts. |
| |
| N121 |
A high structure N-100 series carbon black giving maximum
treadwear but dispersing as easily as N200 series. |
| |
| N134 |
Provides superior abrasion resistance. Used in truck
and passenger tire treads. |
| |
| N220 |
Provides excellent abrasion resistance, high tensile,
good tear properties, moderate electrical conductivity.
Used in truck and passenger tires, and mechanical goods.
|
| |
| N231 |
Low structure, high abrasion resistance, used mainly
in tires where resistance to tear is important. |
| |
| N234 |
Provides superior abrasion resistance vs. N220. Excellent
wear and extrusion properties typical of improved process
high structure blacks. Used in all elastomers, especially
SBR/BR blends for treads and tread rubber. |
| |
| N299 |
Provides abrasion resistance superior to N339, N375,
N220 and comparable to N234. Used in truck and passenger
tires, tread rubber and mechanical goods. |
| |
| N326 |
Low structure, high reinforcement, high tensile strength,
very resistant to tear and chipping in natural rubber
compounds. Used in mechanical goods, tire carcasses, belts
and off the road tread. |
| |
| N330 |
Provides good abrasion resistance with high resilience,
easy processing, good tensile and tear properties. Wide
range of applications in natural rubber and synthetic
rubber compounds for both tires and mechanical goods.
|
| |
| N339 |
Provides superior wear and cut growth resistance vs.
N347. Excellent wear and extrusion properties typical
of improved process high structure blacks. Used in passenger
treads, tread rubber and mechanical goods. |
| |
| N343 |
Provides superior wear and processability. Similar to
N339 but with higher structure. Used in passenger and
truck treads. |
| |
| N347 |
Used in NR, SR. Provides excellent processing characteristics
and permits use of high oil loading with low die swell.
Better hysteresis properties than improved treadwear versions.
Used in treads, tread rubber and mechanical goods. |
| |
| N351 |
Provides good abrasion resistance in the N330 range.
High structure, high modulus black with easy processing
characteristics. Excellent dynamic properties. Used in
the tire tread and carcass compounds and mechanical goods.
|
| |
| N358 |
Extra high structure. This can accommodate more oil
than normal for equivalent modulus and hardness. Used
in tire treads, tread rubber and mechanical goods. |
| |
| N550 |
Imparts medium abrasion resistance, high strength, low
shrinkage and die swell. Provides fast, smooth extrusions
and relatively high resilience. Used in tire carcasses,
cushion gum, tubing, cable jacketing, plastic conduit
compounds and in extruded goods requiring excellent dimensional
stability. |
| |
| N650 |
High structure, medium reinforcement gives low die swell,
smooth extrusion and easy processing plus economical compounding.
Used in tire carcasses and sidewalls, cable jackets, inner
tubes and hoses. |
| |
| N660 |
Moderately reinforcing grade. Excellent general purpose
black. Provides good reinforcement, low heat generation,
smooth processing to all elastomers. Used in tire carcass
sidewalls and mechanical goods. |
| |
| N762 |
Moderate reinforcer, gives high resilience and excellent
dynamic properties, low hysteresis, high loadings obtainable.
Used for extruded goods, belts and hoses, and molded goods.
Also used in plastic color concentrates. |
| |
| N772 |
Moderate reinforcer, gives high resilience and excellent
dynamic properties, used in tire carcass and mechanical
goods. |
| |
| N774 |
Moderate reinforcer, gives high resilience and excellent
dynamic properties, low hysteresis, high loadings obtainable.
Used in tire carcasses and sidewalls, extruded goods,
belts and hose. Also used in plastics color concentrates. |
| |
| Note: The above information should be used only as a guideline. |
