::: PIONEER CARBON BLACK :::

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Carbon black is produced from a combustion – pyrolytic process. This process typically converts petroleum-based feedstock oil into carbon black by injecting oil into a reactor, which “cracks” the oil at temperatures in excess of 1000°C.
The reaction process, occurring in milliseconds, ends with a quenching step at the reactor’s outlet.

A carbon black aerosol stream emerges from the reactor and then passes through a series of filters to separate the carbon black from the combustion gases. Then carbon black is collected as powder or granular product and packaged for delivery to customers in every part of the world. Carbon black colloidal and performance properties are a function of a number of process factors plant adjusts these properties to produce high quality ASTM grades and specialty grades to meet the specific end-market requirements where carbon black is consumed.

ASTM NUMBERS	FUNCTION & COMPOUNDING
N110	Gives maximum abrasion resistance, highest reinforcement tensile. Used in aff-the-road tire treads, tread rubber, brifge 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 tea properties, moderate electrical conductivity. Used in truck a 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 w 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 comparable to N234. Used in truck and passenger tires, trea rubber and mechanical goods.
N326	Low structure, high reinforcement, high tensile strength, ver resistant to tear and chipping in natural rubber compounds. in mechanical goods, tire carcasses, belts and off the road tre
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 compound 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, trea rubber and mechanical goods.
N343	Provides superior wear and processability. Similar to N339 with higher structure. Used in passenger and truck treads.
N347	Used in NR, SR. Provides excellent processing characteristic and permits use of high oil loading with low die swell. Bette hysteresis properties than improved treadwear versions. Use 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 tir 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 tre tread rubber and mechanical goods.
N550	Imparts medium abrasion resistance, high strength, low shrinkage and die swell. Provides fast, smooth extrusions an relatively high resilience. Used in tire carcasses, cushion gu 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 bla Provides good reinforcement, low heat generation, smooth processing to all elastomers. Used in tire carcass sidewalls a mechanical goods.
N762	Moderately 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	Moderately reinforcer, gives high resilience and excellent dynamic properties, used in tire carcass and mechanical goo
N774	Moderately reinforcer, gives high resilience and excellent dynamic properties, low hysteresis, high loadings obtainable Used in tire carcasses and sidewalls, extruded goods, belts a hose. Also used in plastics color concentrates.
Note: The above information should be used only as a guideline.