The raw material of Drainage pipe is according to ISO1851988. Strength grade is above 150Physical properties: Desity approx 7. 2 kg/ cm3Tensile strength min150MpaRing crash strength min 350MpaBrinell Hradness max 260 HBLiner expansion coefficient 0. 0105 mm / mk (0. 100 ) Thermal conductivity 5060w/ mk (20) No deformation occurs under 400Internal protection lining - Anti- salt spray : min 350hours - Anti effluent: min 30days max 23 - Anti- chemical: min 30days max 23 PH2- 12 - DFF 120140um - adherence: conform to 1 grade of ISO2409 - anti- heat: 24hours max 95 - Anti- heat circle 1500 15 - 93Internal lining can be bitumen or epoxyExternal coating: color: red brownFire- proof: unfla mm ableDFF: 60umAderence conform to grade2 of ISO2409External coating can be Epoxy or red ferrite oxide paint
