Gail HDPE G Lex E52U003N

Gail HDPE G‑Lex E52U003N is a UV‑stabilized high-density polyethylene (HDPE) resin formulated for telecom-duct extrusionspecifically PLB (permanently lubricated) HDPE telecom ducts used as underground optical fiber cable (OFC) conduits, and DWC (double-walled corrugated) HDPE ducts.

This grade is positioned for duct performance needs rather than pressure-pipe service: stable extrusion, stiffness for shape retention, toughness for installation abuse, and long-life resistance to cracking and oxidative aging. GAIL describes the resin as a bimodal molecular-weight HDPE produced via its G‑Lex CX slurry-process technology, supporting a balance of mechanical strength, impact strength, easy processability, low-temperature impact resistance, high stiffness, and superior ESCR.

For compliance-driven buyers, E52U003N is anchored by manufacturer documentation that explicitly references telecom-duct generic requirements and a natural-resin designation under IS 7328:2020. In practical procurement terms, that means you can build RFQs and technical approvals around a clear, manufacturer-stated application scope and typical-property bundle.

Technical insights

• Telecom-duct standards alignment: The datasheet states conformity to TEC/GR/FA/CDS‑008/04/AUG‑2019 (PLB ducts for underground OFC conduits) and TEC/GR/FA/DWC‑034/02/AUG‑2019 (DWC ducts). It also states conformance to natural-resin designation IS 7328‑3B‑PD‑FXTA of IS 7328:2020.
• Melt Flow Index (I5, 190C/5 kg): 0.95 g/10 minThis flow level is commonly associated with extrusion-friendly behavior for duct profiles, helping balance output rate with melt strength and dimensional control.
• Density @ 23�b0C: 0.954 g/cm�b3Higher density HDPE typically correlates with higher stiffness, supporting ring stiffness and shape retention in PLB and DWC duct geometries.
• Tensile Strength at Yield: 240 kg/cm�b2Indicates resistance to deformation under load during handling and installation (pulling, bending, and site movement).
• Elongation at Yield: 10%Suggests controlled yield behavior, useful for maintaining duct integrity under installation stresses.
• Elongation at Break: >600%A toughness indicator: higher elongation at break generally supports better survivability under impact and sudden strain.
• Flexural Modulus: 10000 kg/cm�b2A stiffness indicator relevant to duct rigidity and resistance to ovality/flattening.
• Izod Impact Strength: 120 J/mSupports impact robustness during transport, trenching, and on-site handling.
• Shore D Hardness: 62A quick reference for surface hardness and resistance to indentation/handling damage.
• ESCR (10% Igepal): >500 hoursA key differentiator for long-life duct applications, indicating resistance to stress cracking under aggressive environments.
• Heat Deflection Temperature (45 g/mm�b2): 67�b0CHelps indicate shape retention under elevated temperatures that may occur in storage yards or during installation.
• Vicat Softening Point: 123�b0CProvides a reference for softening behavior at higher temperatures relevant to processing and end-use exposure.
• Thermal Stability (OIT): >45 minutesA practical indicator of oxidative stability, supporting long-term aging resistance in telecom infrastructure.

Packaging and storage (from manufacturer guidance)

Supplied in natural-colour pellets in 25 kg woven sacks. Store dry, below 50�b0C, and protect from UV light.

Applications

PLB HDPE telecom ducts for underground optical fiber cable conduits: E52U003N is recommended for permanently lubricated HDPE telecom ducts where low-friction cable pulling and consistent duct geometry support faster OFC installation and reduced cable damage risk. UV stabilization supports outdoor handling and staged deployment at project sites.

DWC (double-walled corrugated) HDPE ducts for telecom and utility conduit networks: For DWC duct manufacturers, the grades stiffness-toughness balance and crack-resistance positioning support corrugated duct structures that must tolerate installation impacts, soil loads, and long service life in buried conditions.

Telecom duct extrusion where ESCR and long-life stability are selection drivers: Buyers often specify ESCR and OIT performance when ducts must resist stress cracking, thermal aging, and handling exposure. E52U003N is positioned for these long-life infrastructure requirements with a documented typical-property bundle.

Comparable alternatives

Comparable HDPE telecom-duct grades are available in India through multiple suppliers and distribution channels, but direct equivalence should not be assumed unless you match the manufacturer TDS values and the same compliance requirements.

Within GAILs own documentation, E52U003 and E52U003N are listed together for PLB/DWC duct applications; however, a strict drop-in equivalent statement is not confirmed here beyond the paired listing. If you are considering alternatives or substitutions, the most decision-relevant comparison points are:

• Flow vs stiffness: MFI (I5) around 0.95 and density around 0.954 for duct extrusion stability and rigidity.
• Crack resistance: ESCR performance (e.g., >500 h) as a key long-life differentiator.
• Aging stability: OIT and UV stabilization expectations for storage and service life.
• Standards language: explicit references to TEC generic requirements and IS 7328 designation in the manufacturer documentation.

E52U003N is best positioned when your approval workflow needs manufacturer-stated telecom-duct application language plus a clear, duct-focused property set (stiffness, impact, ESCR, and oxidative stability).

Common search variants

Also searched as: HDPE telecom duct granules, OFC duct HDPE, PLB duct resin, DWC duct resin, HDPE dana for telecom ducts.

Common variants/misspellings: G Lex E52U003N, GAIL E52U003N, E52U003N HDPE, E52U003N 0.95 MFI.