HDPE P0649

HDPE P0649 is a bimodal high-density polyethylene extrusion grade specifically engineered for natural and colored non-pressure pipe systems[cite: 271, 272, 273]. This grade is distinguished by its outstanding Environmental Stress Crack Resistance (ESCR) of 800 hours and high impact strength of 25 $kJ/m^2$, ensuring long-term durability in infrastructure applications[cite: 274, 276]. With a bimodal molecular weight distribution, P0649 provides the mechanical toughness required for irrigation, drainage, and sewage pipes while maintaining excellent processability[cite: 274]. It features high ductility with tensile elongation exceeding 1000% and reliable performance in low-temperature environments down to -80°C[cite: 276].