... Gravity, g/cm3(20°C)0.941~0.965Longitudinal Reversion, %(110°C)≤3Oxidation Induction Time, min(200°C)≥20Extension Rate at Break,%≥ ... 350Hydraulic Pressure Test (PE100)20°C,100h, Hoop Stress is 12.4MPaNo Failure80°C,165h, Hoop Stress is 5.5MPaNo ... Failure80°C,1000h,Hoop Stress is 5.0MPaNo Failure Water supply HDPE PIPE Manufacture Shandong Yanggu Hengtai Industrial CO.,Ltd