OPaL HDPE Opalene P4402
OPaL HDPE Opalene P4402 (also searched as Opalene P4402 / HDPE P4402 / OPAL HD P4402) is a high density polyethylene (HDPE) polyolefin pipe-extrusion grade from ONGC Petro additions Limited (OPaL). OPaL’s pipe-grade documentation describes P4402 as a natural-colored HDPE produced using Mitsui CX slurry polymerization technology, positioned for very good processing properties, good mechanical properties, excellent stress crack resistance, and good external appearance.
P4402 is designed for PE-63 pressure pipes used in drinking-water and irrigation networks, and also for steel pipe lining and ducting applications. This is important for SEO and buyer intent: P4402 should be presented as a pipe-extrusion grade (long-length extrusion performance and crack resistance focus), not as a general-purpose HDPE resin.
Manufacturer: ONGC Petro additions Limited (OPaL) (India)
Technical insights
The following are manufacturer-stated typical values (not specification limits) from the pipe-extrusion TDS-style sheet. These are the kinds of checkpoints pipe processors and project buyers use to evaluate PE63 pipe materials.
- MFI 0.25 g/10 min (190°C/2.16 kg, ASTM D1238): Low melt flow is typical for pipe extrusion and generally supports melt strength and wall integrity in pressure-pipe manufacturing.
- Density 0.944 g/cm³ (23°C, ASTM D1505): Supports a balance of stiffness and toughness for PE63-class pipe applications.
- Tensile strength at yield 20 MPa (ASTM D638): A baseline strength indicator relevant to pressure-pipe performance expectations.
- Elongation at break >500% (ASTM D638): Indicates ductility, helping pipes tolerate deformation during installation and service.
- Notched Izod impact >200 J/m (23°C, ASTM D256A): Indicates toughness for handling, transport, and field installation.
- Flexural modulus 900 MPa (ASTM D790A): A stiffness indicator supporting pipe rigidity and resistance to deformation.
- Hardness 60 Shore D (ASTM D2240): A general rigidity/surface hardness indicator.
- ESCR >600 hours (ASTM D1693B, F50, 10% Igepal): Environmental stress crack resistance is a key durability indicator for long-life pipe systems.
Applications
PE63 drinking-water and irrigation pressure pipes: Opalene P4402 is designed for PE-63 pressure pipe extrusion where consistent processing and resistance to stress cracking support long service life. This aligns with high-intent searches like “PE63 HDPE pipe grade,” “drinking water pipe material,” and “irrigation pipe HDPE resin.”
Steel pipe lining: P4402 is also positioned for steel pipe lining applications, where processors need stable extrusion behavior and a durable polymer layer to support internal protection and flow performance.
Ducting and conduit applications: For ducting, processors typically prioritize consistent extrusion, toughness, and reliable performance in installation environments. P4402’s pipe-grade mechanical profile and ESCR positioning support this use case.
Comparable alternatives
Comparable OPaL HDPE pipe grades exist, but exact equivalence to P4402 is not confirmed unless validated via a side-by-side manufacturer TDS comparison (same PE class, intended use, and comparable performance profile).
- Opalene P4002 (often positioned as PE80): Typically positioned for water pipes, city gas distribution pressure pipes, and sprinkler/irrigation pipes. It sits in a different pressure-pipe class than PE63, so it should not be treated as a direct substitute without standards and TDS alignment.
- Opalene P50H03 / P51H10 (PE100 grades): These are higher-class pressure pipe grades with different long-term hydrostatic classification and performance context. They may be considered when the project specification calls for PE100, but they are not “equivalent” to PE63.
- Other market-listed pipe grades: Reseller/marketplace pages can help discover availability, but substitution decisions should be made from manufacturer documentation (PE class + properties + compliance statements).
Selection tip: start with the required PE class (PE63) and intended application (drinking water, irrigation, lining, ducting), then validate with the manufacturer’s TDS rather than matching only one number like density or MFI.
Common search variants
Also searched as: Opalene P4402, HDPE P4402, OPAL P4402 pipe grade, P4402 PE63, P4402 MFI 0.25, Opalene P 4402, HDPE pipe dana / polyethylene granules.
Key Features
Specifications
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FAQs
Frequently Asked Questions
What is Opalene P4402 used for?
Is P4402 suitable for drinking-water pipes?
What does the low MFI (0.25) mean for pipe extrusion?
Why is ESCR important for buried pipes?
Can P4402 be used for irrigation pipes?
How does P4402 compare with PE80 or PE100 pipe grades?
What should I check before substituting another grade for P4402?
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