• Bijaya Kumar Sahoo
• Abhijit mangaraj
• Surajit pattnaik

High-Density Polyethylene (HDPE) pipes have emerged as a crucial element of modern infrastructure, providing a reliable solution for fluid and gas transportation. Their popularity stems from properties such as superior flexibility, corrosion and chemical resistance, and an impressive service life of 50–100 years. Compared to conventional materials like steel, concrete, and cast iron, HDPE pipes are lighter, easier to install, and exhibit a high strength-to-density ratio. These benefits, however, are not inherent to the polymer alone. They are the result of carefully implemented quality assurance (QA) frameworks and rigorous testing throughout the manufacturing cycle. This paper investigates the QA mechanisms and performance evaluation methods applied in HDPE pipe production, using a case study approach in a leading manufacturing facility. The study documents how quality is established, monitored, and validated through systematic raw material inspection, in-process controls, and comprehensive finished product testing. Empirical evidence from density, melt flow index (MFI), oxidative induction time (OIT), carbon black content (CBC), tensile strength, hydrostatic pressure performance, and slow crack growth (SCG) resistance is presented. The results affirm that adherence to QA protocols ensures compliance with ISO, ASTM, and IS standards, thereby guaranteeing the long-term reliability and safety of HDPE pipes across diverse applications such as potable water supply, gaseous fuel distribution, sewerage, and industrial process piping.

High-Density Polyethylene, Polymer Characterization, Material Performance

"An Empirical Investigation into the Quality Assurance and Performance Characteristics of High-Density Polyethylene (HDPE) Pipes for Diverse Fluid and Gaseous Transportation Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 9, page no.e713-e727, September-2025, Available :http://www.jetir.org/papers/JETIR2509485.pdf

"An Empirical Investigation into the Quality Assurance and Performance Characteristics of High-Density Polyethylene (HDPE) Pipes for Diverse Fluid and Gaseous Transportation Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 9, page no. ppe713-e727, September-2025, Available at : http://www.jetir.org/papers/JETIR2509485.pdf