PE燃气管材力学指标主要有断裂伸长率、短期静液压强度、拉伸强度、耐慢速裂纹增长性能,导致管材力学指标失效的原因有:原材料的性能、工艺控制与人员操作、取样方式、试验设备和试验人员操作、设备和模具等因素。 PE gas pipe mechanical indicators are the main elongation at break, short-term hydrostatic strength, tensile strength, resistance to slow crack growth performance, resulting in failure of pipe mechanical indicators are: raw material performance, process control and personnel operations, sampling methods, Test equipment and test personnel operation, equipment and mold and other factors.