... 50,000 times (national standard 10,000 times), and unchanged resistance value.6. Tensile strength is 3-4 times higher than steel ... , rigidity is 2-3 times higher than steel, fatigue resistance is 2 times higher than steel, weight is 3-4 ... and fluorine plastic. 1. Under normal temperature (maintaining heating), insulation resistance is more than 500mω, withstand voltage is 4,500v (ac ...