PE spiral steel reinforced HDPE corrugated pipe product features reinforced steel spiral corrugated plastic pipe also has strong corrosion resistance and toughness, and therefore, its advantages are obvious: ● Avoid the monolayer structure lap surface cracking problem ● high ring stiffness, the specifications of the ring stiffness SN8 up more ● save material cost, compared with the same diameter ring stiffness of the whole plastic pipes buried can significantly reduce costs ● perfect combination of steel and plastic: the unique The bonding material layers in the molten state, solid and very reliable ● easy construction, performance: drain than traditional, reliable sealing, try long life, flexible seismic, light weight, easy quick construction steel reinforced PE helix Bellows Product parameters No. projects require a ring stiffness (KN / m) SN8 ≥8 SN10 ≥10 SN12.5 ≥12.5 SN16 ≥8 2 Impact performance (TIR) ??≤10% 3 ring flexible smooth specimen, no reverse bending, No crack 4 oven test joints melt drains should be no delamination, no cracking creep rate ≤2% 6 5 weld tensile strength Nominal Size / mm nominal diameter pipe can withstand the minimum tensile strength (N) 300≤DN / ID≤500 600 600≤DN / ID≤800 840 900≤DN / ID≤1200 1020 1300≤DN / ID2000 1460 DN / ID≤2000 1600 7 ring flexible smooth specimen, no reverse bending, no rupture 8 oven test drain melt joints should be no delamination, no cracking nine creep rate ≤2%