Tenax® filament yarn is a high-tech carbon fiber product, which significantly enhances properties in thermoset and thermoplastic composites, including aerospace, automotive and general industrial applications.

Tenax® filament yarn features a high tensile strength as well as a high tensile modulus. It is available in qualities ranging from 67 to 3200 tex or 1,000 to 48,000 filaments.

Ideally suited for all common processes (e.g. for prepregging, filament winding, pultrusion and weaving, braiding), Tenax® filament yarn is surface treated to improve fiber-to-resin interfacial bond strength. In addition, fiber sizing is applied to protect the fiber and to improve handling and wet-out. A wide variety of available sizings make it fully compatible with thermoset matrix systems (epoxy, polyurethane and vinylester). Our tailored thermoplastic sizing is compatible with several thermoplastic matrix systems (e.g. PEEK, PEI, PA).

Properties of Tenax® Filament Yarn

By Internal Standard

Grade Filament Count Yield Tensile StrengthTensile StrengthTensile StrengthTensile ModulusTensile ModulusTensile Modulus Elongation Density
tex MPa kgf/mm2 ksi GPa tonf/mm2 Msi % g/cm3
Standard ModulusHTA40 1 000 67 4100 420 590 240 24 35 1.7 1.77
3 000 200
6 000 400
12 000 800
HTS40 3 000 200 4400 450 640 240 24 35 1.8 1.77
6 000 400
12 000 800
24 000 1600
HTS45 12 000 800 4500 460 650 240 24 35 1.9 1.77
STS40 24 000 1600 4300 440 620 240 24 35 1.8 1.78
48 000 3200 4300 440 620 250 26 36 1.7 1.77
UTS50 12 000 800 5100 520 740 245 25 36 2.1 1.78
24 000 1630
ITS50 24 000 1630 5100 520 740 265 27 38 1.9 1.80
Intermediate ModulusIMS40 3 000 170 4500 460 650 290 30 42 1.6 1.73
6 000 340
12 000 680
IMS60 6 000 210 5800 590 840 290 30 42 2.0 1.79
12 000 410
24 000 830
IMS65 24 000 830 6000 610 870 290 30 42 2.1 1.78
High Modulus HMA35 12 000 760 3300 340 480 355 36 51 0.9 1.78
UMS40 12 000 390 4700 480 680 390 40 57 1.2 1.79
24 000 800
UMS45 12 000 390 4600 470 670 425 43 62 1.1 1.83
UMS55 12 000 360 4000 410 580 550 56 80 0.7 1.91
Metalcoated HTS40 MC 12 000 1430 2900 300 420 230 23 33 1.3 2.70

The properties on this table are typical and not warranty value. It was obtained using certain controlled condition by Teijin. Please contact our sales team, for choosing the best product.

The export of carbon fibers can be subject to authorization. Each exporter is responsible to observe the regulations in his country. Additional import/export regulations from other countries might be relevant.

By SACMA method

Grade Filament Count Yield Tensile StrengthTensile StrengthTensile StrengthTensile ModulusTensile ModulusTensile Modulus Elongation Density
tex MPa kgf/mm2 ksi GPa tonf/mm2 Msi % g/cm3
Standard ModulusHTA40 1 000 67 4100 420 590 230 23 33 1.8 1.77
3 000 200
6 000 400
12 000 800
HTS40 3 000 200 4400 450 640 230 23 33 1.9 1.77
6 000 400
12 000 800
24 000 1600
HTS45 12 000 800 4500 460 650 235 24 34 1.9 1.77
STS40 24 000 1600 4300 440 620 235 24 34 1.8 1.78
48 000 3200 4300 440 620 245 25 36 1.8 1.77
UTS50 12 000 800 5100 520 740 235 24 34 2.2 1.78
24 000 1630
ITS50 24 000 1630 5100 520 740 255 26 37 2.0 1.80
Intermediate ModulusIMS40 3 000 170 4500 460 650 280 29 41 1.6 1.73
6 000 340
12 000 680
IMS60 6 000 210 5800 590 840 280 29 41 2.1 1.79
12 000 410
24 000 830
IMS65 24 000 830 6000 610 870 280 29 41 2.1 1.78
High ModulusHMA35 12 000 760 3300 340 480 340* 35* 49* 1.0* 1.78
UMS40 12 000 390 4700 480 680 375* 38* 54* 1.3* 1.79
24 000 800
UMS45 12 000 390 4600 470 670 415 42 60 1.1 1.83
UMS55 12 000 360 4000 410 580 540 55 78 0.7 1.91
Metalcoated HTS40 MC 12 000 1430 2900 300 420 225* 23* 33* 1.3* 2.70

* calculated based on values measured by Toho method

The properties on this table are typical and not warranty value. It was obtained using certain controlled condition by Teijin. Please contact our sales team, for choosing the best product.

The export of carbon fibers can be subject to authorization. Each exporter is responsible to observe the regulations in his country. Additional import/export regulations from other countries might be relevant.

Typical Applications