OPaL HDPE Opalene P50H03

OPaL HDPE Opalene P50H03 (also searched as Opalene P50H03 / HDPE P50H03 / OPAL HD P50H03) is a high density polyethylene (HDPE) polyolefin pipe-extrusion grade from ONGC Petro additions Limited (OPaL). OPaL documents this grade as a natural-colored HDPE produced using Mitsui CX slurry polymerization technology, engineered specifically for pipe extrusion.

What makes P50H03 different from generic HDPE granules is that it is designated PE100 (per ISO 12162) with an MRS classification of 10 MPa (per ISO 9080). That designation matters to pipe manufacturers and project buyers because it ties the resin to long-term hydrostatic performance expectations used in pressure-pipe design.

OPaL positions P50H03 for very good processing properties, high creep resistance, excellent stress crack resistance, and excellent mechanical properties—a combination aligned with high-pressure pipe applications, potable water transportation pipes, and larger-diameter drainage/sewerage pipes where durability and service life are critical.

Manufacturer: ONGC Petro additions Limited (OPaL) (India)

Technical insights

For pipe-grade HDPE, buyers typically evaluate flow behavior, density/stiffness, crack resistance, oxidation stability, and pipe-specific performance tests. The following are manufacturer-stated typical values and related pipe performance figures.

• PE100 designation (ISO 12162) & MRS 10 MPa (ISO 9080): These classifications support pressure-pipe design confidence and indicate the resin’s long-term strength category for hydrostatic applications.
• MFI 0.27 g/10 min (190°C/5.0 kg, ASTM D1238): Low melt flow is common in pipe grades, balancing processability with mechanical integrity. It can support strong melt strength and robust pipe performance.
• Density 0.950 g/cm³ (23°C, ASTM D1505): A pipe-grade HDPE density level that supports stiffness and dimensional stability in extruded pipes.
• ESCR >1000 hours (ASTM D1693B, F50, 10% Igepal): A key indicator for resistance to slow crack growth and stress cracking—critical for pressure pipes and long service life.
• Elongation at Break >800% (ASTM D638): Indicates strong ductility, helping pipes tolerate deformation and installation stresses without brittle failure.
• Notched Izod Impact >250 J/m (23°C, ASTM D256A): Useful indicator for impact performance during handling, transport, and installation.
• OIT >30 minutes (ASTM D3895): Oxidative Induction Time is a stability indicator tied to antioxidant protection; relevant for processing stability and long-term performance expectations.
• SCG (ISO 13479, notch pipe test at 80°C, 9.2 bar) >500 hours: A pipe-specific slow crack growth performance figure that supports durability in demanding service conditions.
• RCP-S4 (ISO 13477) critical pressure at 0°C ≥10 bar: A pipe-specific rapid crack propagation indicator, relevant for safety margins in certain operating environments.

Processing guidance: 180–220°C (recommended). Storage guidance: protect from direct sunlight/heat, store dry and dust-free, and keep storage temperature below 50°C.

Applications

PE100 high-pressure pipe applications: Opalene P50H03 is designed for PE100 pressure pipes where long-term hydrostatic strength, creep resistance, and stress crack resistance are essential. Pipe manufacturers typically evaluate this grade for projects requiring dependable performance under sustained internal pressure.

Potable water transportation pipes: P50H03 is positioned for potable-water pipe extrusion, where consistent mechanical performance and standards-backed material selection are important for regulatory confidence and long service life. Buyers often search for “PE100 HDPE grade” and “potable water pipe material,” and P50H03 aligns with that intent.

Larger drainage and sewerage pipes: For higher-diameter drainage/sewerage pipes, processors prioritize stiffness, toughness, and crack resistance during installation and service. P50H03’s pipe-grade balance of density, impact performance, and ESCR supports these requirements.

Comparable alternatives

When comparing OPaL HDPE Opalene P50H03, the most defensible comparison is to other PE100 pipe grades where the manufacturer explicitly documents the same PE100/MRS positioning and provides comparable pipe-performance data.

• Other OPaL P-series pipe grades: These may be comparable by application (pipe extrusion), but equivalence is not confirmed unless the manufacturer documents matching PE100 designation, MRS, and a similar crack-growth/oxidation stability profile.
• Generic HDPE grades (non-pipe grades): Even if density or MFI looks similar, non-pipe HDPE typically lacks PE100/MRS and pipe-test context. For pressure-pipe projects, the PE100 designation and pipe-specific performance indicators are the key differentiators.

Selection tip: if your requirement is pressure pipe / potable water, prioritize PE100 + MRS and crack-growth indicators (ESCR/SCG/RCP) rather than relying on general mechanical properties alone.

Common search variants

Also searched as: Opalene P50H03, HDPE P50H03, OPAL PE100 HDPE, PE100 pipe grade, P50 H03, P50H03 MFI 0.27, HDPE pipe dana / granules.