specializes in research & development and production of Carbon Black

Difference between hard carbon black (Carbon Black N330, N326, N375, N220, N219, N339) and soft carbon black ( Carbon Black N550, N660, N774) ?

In the standard rubber carbon black below N500 belongs to the hard carbon black ( CARBON BLACK N330 ), the use of such carbon black in rubber processing is mainly its reinforcing effect, increase the rubber abrasion resistance and tensile strength and other parameters. For example, hard carbon black is used for tread rubber. Carbon Black N330

Including N500 and above all the way up to N990, etc. are soft carbon black, the use of this carbon black processing of rubber more important to the rubber’s other properties, including airtightness, smoothness and so on. Carbon Black N550

China Carbon Black For tire, Rubber application - Beilum Carbon. Carbon Black N330

Hard carbon black and soft carbon black process differences.

In the carbon black production process, most of the carbon black produced by contact method and oil furnace method will be called hard carbon black. Carbon black produced by gas furnace method and thermal cracking method and a small portion of carbon black produced by oil furnace method also belong to soft carbon black N330.

Difference between the roles of soft carbon black and hard carbon black.

In rubber products to strengthen the main role of carbon black, the Department of carbon black is relative to the soft carbon black is known as hard carbon black; and in rubber products to strengthen the effect is poor, to a large extent, play a filling role in the carbon black for the soft carbon black. That is to say, the role of hard carbon black to reinforce the main, while the role of soft carbon black reinforcement is poor to filler-based.

Carbon Black N330

How to distinguish between hard carbon black and soft carbon black N330 ?

Hard carbon black, also known as tread carbon black, refers to the carbon black that is mainly used for reinforcing in rubber products, which is relative to soft carbon black. The standard average particle size is in the range of 11-45 nm, and most of the carbon blacks produced by contact method and oil furnace method are also hard carbon blacks. In general, rubber carbon blacks with N500 or less are hard carbon blacks. Carbon Black N330

Soft carbon black, also known as carcass carbon black, is a carbon black with poor reinforcing effect in rubber products, which plays a filling role to a large extent, and is relative to hard carbon black. Standard average particle size in the range of 45 ~ 500 nm, with gas furnace method and thermal cracking method of carbon black production and a small part of the oil furnace method of carbon black production also belongs to the soft carbon black. In general, carbon blacks from N500 and above up to N990 are soft carbon blacks. Carbon Black N550

China Carbon Black N330 - Beilum Carbon

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