Products

Carbon Fiber Tow

Carbon Fiber Tow
(Continuous fiber)

Carbon fiber is a high-strength and high-elastic modulus material, yet its specific gravity is only one-fourth that of iron. It, therefore, enables high strength, high rigidity, and weight-saving in a wide variety of applications.
Carbon fiber tow, made of bundles of untwisted filaments, is the essential material in our carbon fiber product line.

Features

Mitsubishi Chemical manufactures both PAN-based and pitch-based carbon fiber materials.

Thanks to our unique ability to manufacture carbon fiber from two basic raw materials, PAN and pitch, in comprehensive, streamlined production systems, we offer a variety of high-quality carbon fiber tow, including ultra-high strength (MR70 12P) and ultra-high modulus (K13D2U) materials.

The raw material fiber (precursor) for PAN-based carbon fiber is made using polyacrylonitrile (PAN) as a raw material. The raw PAN is polymerized utilizing Mitsubishi Chemical’s unique expertise in polymer synthesis and polymer processing technologies and then spun.
The raw material fiber for pitch-based carbon fiber is produced by obtaining coal tar pitch from coal utilizing Mitsubishi Chemical’s longstanding knowledge of coal chemistry, processing the pitch using an original process, and finally spinning the pitch.
Carbon fiber tow is produced by carbonizing these raw fibers in a highly controlled environment.

Mitsubishi Chemical has also acquired quality management system certification (JISQ9100) in the field of aviation, aerospace, and defense, and it constantly strives to improve its quality management system further.

Image showing the features of carbon fiber tow

Image showing the features of carbon fiber tow

Applications

Carbon fiber tow is processed into various forms and combined with matrix resin to use like carbon fiber reinforced plastics (CFRP). Products made from CFRP exhibit high-strength, high-elastic modulus, and lightweight, a combination of properties unique to carbon fiber.
For more information on carbon fiber molding methods, click here.
For intermediate material products processed from carbon fiber tow, please click here.
Carbon fiber tow can be used for any applications in which strength, rigidity, and lightweight are required, such as automobiles, wind power generation, aircraft, and sporting goods.

Product Lineup

Fiber type Filament
count
Filament dia.
(µm)
Tensile modulus
(GPa)
Tensile strength
(GPa)
Yield
(mg/m)
Density
(g/cm3)
TR 30S 3L 3,000 7 235 4.12 200 1.79
TR 50S 6L 6,000 7 235 4.90 400 1.82
TR 50S12L 12,000 7 235 4.90 800 1.82
TR 50S15L 15,000 7 235 4.90 1,000 1.82
TR 50D12L 12,000 7 235 5.00 800 1.82
TRH50 18M 18,000 6 250 5.30 1,000 1.82
TRH50 30M 30,000 6 255 5.60 1,670 1.82
TRH50 60M 60,000 6 250 4.83 3,200 1.81
TRW40 50L 50,000 7 240 4.12 3,750 1.81
MR 60H 24P 24,000 5 280 5.68 960 1.81
MR 70 12P 12,000 5 324 7.00 415 1.82
MS 40 12M 12,000 6 340 4.41 600 1.77
HR 40 12M 12,000 6 375 4.41 600 1.82
HS 40 12P 12,000 5 425 4.61 430 1.85
Fiber type Filament
count
Filament dia.
(µm)
Tensile modulus
(GPa)
Tensile strength
(GPa)
Yield
(mg/m)
Density
(g/cm3)
34-700 12,000 7 234 4.83 800 1.80
34-700 24,000 7 234 4.83 1,600 1.80
37-800 30,000 6 255 5.52 1,675 1.81
34-600 48,000 7 234 4.48 3,200 1.80
Fiber type Filament
count
Tensile modulus
(GPa)
Tensile strength
(GPa)
Yield
(mg/m)
Density
(g/cm3)
Thermal conductivity
(W/mK)
Electrical Resistivity
(μΩm)
K1352U 2,000 620 3.60 270 2.12 140 6.6
K1392U 2,000 760 3.70 270 2.15 210 5.0
K13C2U 2,000 900 3.80 275 2.20 620 1.9
K13C6U 6,000 900 3.60 760 2.18 580 2.0
K13D2U 2,000 935 3.70 365 2.20 800 1.5
K13312 12,000 420 3.20 1,550 2.05 110 8.0
K63712 12,000 640 2.60 2,000 2.12 140 6.6
K13916 16,000 760 3.00 2,200 2.15 200 5.1
K63A12 12,000 785 2.60 1,950 2.15 220 4.7

Note: The values in this table are typical and do not imply any kind of guarantee.

Customer Support

For detailed product specifications, pricing,
and usage information, please contact us.