Gail HDPE G Lex B55HM0003
Gail HDPE G‑Lex B55HM0003 is a high‑molecular‑weight (HMW), bi‑modal high‑density polyethylene (HDPE) blow‑moulding grade from GAIL (India) Limited. It is positioned for medium‑ to large‑bulk containers (up to about 120 litres) mainly used for chemicals and oils, where converters need an optimum combination of environmental stress‑crack resistance (ESCR), stiffness, and creep strength.
This grade is typically selected for heavy‑duty blow‑moulded packaging such as industrial chemical drums, jerrycans, open‑top barrels, and wide‑mouth containers. The HMW + bi‑modal molecular‑weight distribution positioning is relevant for blow moulders because it supports strong mechanical performance while maintaining practical processing behavior for thick‑wall, large‑volume parts.
As per the manufacturer positioning, B55HM0003/B55HM0003N conforms to natural‑resin designation IS 7328‑3B‑BB‑FXDA of IS 7328:2020 for polyethylene used in moulding/extrusion for blow‑moulded products.
Technical insights
- Melt Flow Index (I2) ~0.15 g/10 min (190°C/2.16 kg): A very low MFI indicates a high‑molecular‑weight blow‑moulding class. This supports melt strength for large parisons and helps deliver tough, thick‑wall containers, though it can require higher extrusion torque and careful temperature control.
- Density ~0.954 g/cm³: A typical HDPE density that supports a strong stiffness‑to‑toughness balance for industrial packaging.
- Tensile strength at yield ~250 kg/cm² & elongation at yield ~11%: Indicates a strength‑forward resin with controlled ductility—useful for containers that must resist handling abuse without brittle cracking.
- Flexural modulus ~10000 kg/cm²: Signals a stiffness level suitable for stackable drums and jerrycans while still maintaining toughness.
- Izod impact strength ~230 J/m: Supports impact resistance for drops and shocks during filling, warehousing and transport.
- Shore D hardness ~62: A balanced surface hardness for handling durability and scuff resistance.
- ESCR (10% Igepal) >1000 hours: A key differentiator for chemical/oil packaging—helps reduce stress‑crack risk over long service life, especially around high‑stress zones (base, handle, shoulder, weld lines).
- Vicat softening point ~124°C: Useful for setting expectations on heat resistance during storage and handling.
Applications
Industrial chemical drums and containers (up to ~120 L): B55HM0003 is positioned for blow‑moulded chemical packaging where high ESCR and creep strength matter. It is used when containers must tolerate long‑term contact with aggressive fluids and still maintain structural integrity under storage and transport conditions.
Oil and lubricant containers (large formats): For oils and lubricants in larger pack sizes, converters often prioritize stress‑crack resistance, stiffness, and durability. The low‑MFI HMW profile supports thick‑wall containers designed to survive handling shocks and long shelf/storage time.
Open‑top / wide‑mouth barrels and heavy‑duty jerrycans: This grade is commonly evaluated for packaging that needs shape retention under stacking loads and resistance to deformation over time (creep), especially in industrial supply chains.
Comparable alternatives
- GAIL G‑Lex B55HM0003N: The closest alternative within the same family when UV stabilization is required for the supply chain. Confirm the exact positioning and typical values on the corresponding datasheet.
- Smaller‑container blow‑moulding grades (e.g., B52A003/B52A003N): These are positioned for small containers (~5 L) and typically run at higher MFI for faster processing of smaller parts. B55HM0003 is positioned for much larger containers (up to ~120 L) and emphasizes ESCR/creep strength for industrial duty.
- Other HM blow‑moulding HDPE grades in India: Comparable grades should be screened by matching the full decision cluster—MFI (~0.15), ESCR (>1000 h), density (~0.954), stiffness, impact, and the target container size range. Direct equivalence should not be assumed without mould trials and end‑use chemical compatibility testing.
Common search variants
Also searched as: Gail B55HM0003 HDPE, G‑Lex B55HM0003 HM blow moulding, B55HM0003 dana, HDPE chemical drum grade. Common misspellings: B55HMOOO3, B55HM0003N grade, Glex B55HM0003.
Key Features
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FAQs
Frequently Asked Questions
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Why is the MFI so low (~0.15)?
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