Alternative and trade names
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Twaron® is a para-aramid, high-performance yarn which combines the following characteristics:

  • High strength: excellent strength-to-weight ratio
  • High modulus
  • High dimensional stability: very low creep, small negative thermal expansion coefficient
  • Excellent thermal stability: usable across a wide range, no melting point, high heat stability, low heat conductivity
  • High cut resistance
  • Good chemical resistance
  • Low flammability
  • Electrically non-conductive
  • Long, well-characterised lifetime under static and dynamic loads
  • This material data has been provided by Matmatch.

    "Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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    20.0 °C

    1.44 - 1.45 g/cm³

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    Limiting oxygen index

    20.0 °C

    29 - 40 %

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    Water content

    20.0 °C

    2 - 7 %

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    Elastic modulus

    20.0 °C

    60 - 145 GPa

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    20.0 °C

    2.3 - 4.2 %

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    at break


    1.9 - 2.5 N/tex

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    Tensile strength

    20.0 °C

    2700 - 3600 MPa

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    Melting point

    500 °C

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    Technological properties

    Application areas

    Optical fiber,cables, hoses, tires, rubber products, ballistic protection, protective clothing, ropes and cables, composites and belts.