Question: what is the difference between hdpe and mdpe pipe?
Answer: “HDPE” stands for “High-Density Polyethylene”; “MDPE” stands for Medium-Density Polyethylene. 2. HDPE has the density 0.941g/cm3 or greater; MDPE has the density in the range of 0.926-0.940g/cm3. ... MDPE has a higher stress cracking resistance than HDPE.