Gail HDPE G Lex B55HM0003N

Gail HDPE G‑Lex B55HM0003N is a UV‑stabilized, high‑molecular‑weight, bi‑modal HDPE blow‑moulding grade manufactured by GAIL (India) Limited. It is recommended for medium‑ to large‑bulk containers (up to about 120 litres) used mainly for industrial chemicals and oils—applications where the container must resist slow crack growth, handling impacts, and long‑term stacking/creep loads.

The grade is designed to deliver an optimum balance of environmental stress‑crack resistance (ESCR), stiffness, and creep strength. In practical terms, this helps blow‑moulders produce drums, barrels, and jerry cans that stay dimensionally stable in storage and transport, while reducing the risk of stress cracking when exposed to aggressive liquids, detergents, or oils.

GAIL positions the G‑Lex HDPE range as offering strong mechanical performance and processability; for B55HM0003N specifically, the combination of very low melt flow and high density signals a resin engineered for heavy‑duty blow‑moulded packaging rather than thin‑wall parts.

Technical insights

• Melt Flow Index (I2, 190°C/2.16 kg): 0.15 g/10 min (typical). A very low MFI generally indicates high molecular weight, supporting higher ESCR and better creep/stacking performance in large containers. It can also mean higher extrusion torque and slower flow versus higher‑MFI blow grades.
• Density (23°C): 0.954 g/cm³ (typical). Higher density HDPE typically supports stiffness and chemical resistance, useful for drums and industrial chemical packaging.
• Tensile strength at yield: 250 kg/cm² (typical). Indicates the resin’s ability to withstand load before yielding—relevant for handling, palletization, and stacking.
• Flexural modulus: 10,000 kg/cm² (typical). A stiffness indicator; helps containers maintain shape and resist paneling under load.
• ESCR (10% Igepal): >1000 hours (typical). A key selection criterion for chemical/oil packaging; higher ESCR generally means better resistance to stress cracking in aggressive environments.
• Izod impact strength: 230 J/m (typical). Supports resistance to drops and handling shocks, especially valuable in industrial logistics.
• Shore D hardness: 62 (typical). A quick indicator of surface hardness and rigidity.
• Vicat softening point: 124°C (typical). Helps indicate thermal softening behavior during service and handling.
• Processing guidance (typical): Barrel 180–220°C, die 210–225°C, mould cooling water 25–30°C. Use these as starting points and tune to parison control, part thickness, and machine capability.

Applications

Industrial chemical drums and open‑top/mouth barrels (medium to large size). B55HM0003N is commonly selected for blow‑moulded containers that must tolerate long‑term contact with industrial chemicals, where ESCR and creep strength are critical for safe storage and transport.

Oil, lubricant, and specialty fluid containers (up to ~120 L). For oils and similar fluids, the grade’s stiffness and crack resistance support robust packaging that performs under stacking loads and repetitive handling in warehouses and distribution.

Heavy‑duty jerry cans and bulk handling containers. When manufacturers need a UV‑stabilized HM blow‑moulding HDPE for outdoor exposure and tough logistics, B55HM0003N is positioned as a dependable choice for thicker‑wall blow‑moulded parts.

Comparable alternatives

Within GAIL’s portfolio, B55HM0003 is the closest related grade name to B55HM0003N; however, treat interchangeability as application‑ and compliance‑dependent (UV package, end‑use requirements, and processing window should be confirmed against the manufacturer’s documentation).

GAIL’s B52A003/B52A003N is positioned differently—commonly referenced for small containers (up to ~5 L) and applications such as food and lube oil packaging—whereas B55HM0003/B55HM0003N is positioned for medium‑ to large‑bulk containers (up to ~120 L) mainly for industrial chemicals and oils.

Across India, multiple suppliers offer HM blow‑moulding HDPE grades with similar intent (chemical drums, jerry cans, large containers). Still, direct equivalence should not be assumed unless MFI, density, ESCR, stiffness, and impact are matched on manufacturer technical data sheets and validated on your moulds (parison stability, cycle time, and drop/ESCR testing can differ meaningfully).

Common search variants

Also searched as: Gail B55HM0003N, G‑Lex B55HM0003N HDPE, B55HM0003N blow moulding granules, B55HM0003N HM blow molding grade, B55HM0003N UV stabilized HDPE.