Steel plastic pipe for anticorrosion properties indicators: Item soft rubber hard rubber Lining layer breaking strength(MPa)≥ 15 17 Liner and skeleton180。　Peel strength：(KN/m)≥ 7 7 Lining layer Elongation at break：(%)≥ 550 400 Lining layer modulus：(300%，MPa)≥ 8 10 Lining layer Akron reduction：(cm3/1.61km)≤ 0.2 0.1 Lining layer of hot air aging rate of change of breaking strength(70℃×72h，%)≤ 10 10 Lining Hardness Shore A 50～70 >70 Shore D - 48～80 Lining layer of acid fracture strength change rate：(Room temperature×7days，%)≤ 30% concentration of HC1 10 10 50% concentration of H2SO4 10 10 30% concentration of NaOH 10 10 Material: seamless steel pipe, welded pipe Specification: DN65*6*6-DN1000*12*16 Pipe diameter: DN159-DN529mm Thickness: steel tube 6-12 mm, lining 6-16 mm Operating temperature range: -268-90℃ Coefficient of friction(COF): 0.12 Impact strength: 56 MPa Fluid available: corrosive fluid, Chemical Fluid, Pulp fluid, water supply and sewage, Concentrate fluid