What are the maximum breaking strengths that can be achieved with dyneema fishing lines?
The tensile strength of the world’s best dyneema fibre, when tested under laboratory conditions, is approx. 350 kg/mm2. See also: How are the fibres for STROFT multifilaments made? However, the finished product always has a slightly lower tensile strength, for two reasons: Ad1: The cross section of the line does not just contain fibres but also has air pockets between the individual fibres. Ad2: The braiding bends the fibres, this reduces the tensile strength in comparison with the linear tensile strength. After braiding the line has a tensile strength of 290 kg/mm2. Therefore a 0.18mm Dyneema fishing line can reach a maximum breaking strain of 7.4kg. More than this just isn’t possible! See also: What does breaking strain, breaking-load, tensile strength mean? Many vendors of multifilament lines give unrealistic values. Such as “0.06mm with 10.6 kg breaking strain”, from this we can calculate a tensile strength of 3751 kg/mm2. This value is more than ten times higher than possible. In
