Carbon Roving

Product description

Carbon fibres from Toho Tenax are made using the high-quality precursor polyacrylonitrile (PAN). PAN fibres are stretched and carbonised at temperatures up to 1,500 °C to obtain high strength and stiffness of the fibres. The carbon atoms of the continuous fibre are then arranged according to the graphite structure at temperatures of up to 3,000 ° C, resulting in a high modulus of elasticity. The exact temperature decides whether it will be high-tensile fibres (HT type), intermediate modulus fibres (IM type) or even (ultra-) high modulus fibres (HM and UHM type). Continuous fibres have a diameter between 5 and 7 μm, are sized and combined into a roving with 1,000 to 48,000 filaments. Rovings are categorised by weight per 1,000 meters (1 tex = 1 gram/1,000 meters) or by the number of individual fibres in unit K (1K corresponds to 1000 filaments), with 1000 filaments being about 67 tex. Compared to the glass fibre, the carbon fibre is characterised by nearly twice as high tensile strengths and even up to five times as high E-moduli, with significantly lower density. In addition, carbon fibres usually have a slightly negative coefficient of thermal expansion, so that they tend to deform only slightly or not at all under heat. Due to these excellent mechanical properties, carbon fibres are established in many applications which require high strengths with a low weight.


Tenax® Carbon Fibers

Country availability

Estonia Latvia
Lithuania Poland
Dr. Johannes Martin

Contact person

Dr. Johannes Martin

Product Manager Performance Products

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