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LyondellBasell Moplen HP644H Polypropylene  (discontinued **)
Categories: Polymer; Thermoplastic; Polypropylene (PP); Polypropylene, Molded

Material Notes: LyondellBasell Australia’s Polypropylene grade HP644H is a low flow homopolymer with a conventional molecular weight distribution and is formulated with a general-purpose additive package. HP644H also contains nucleation and slip additives. HP644H is primarily designed for injection molding and extrusion applications. End use products typically made from HP644H include closures and extruded profiles. Applications: Caps & Closures, Panels & Profiles.

Information provided by LyondellBasell.

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Physical PropertiesOriginal ValueComments
Density 0.900 g/ccMethod D; ISO 1183-1
Melt Flow 2.2 g/10 min
@Load 2.16 kg,
Temperature 230 °C
ISO 1133-1
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 73ISO 868
Tensile Strength, Yield 34.0 MPaISO 527-1,-2
Flexural Modulus 1650 MPaISO 178
Izod Impact, Notched (ISO) 5.00 kJ/m²
@Temperature 23.0 °C
ISO 180/1A
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 0.46 MPa (66 psi) 94.0 °Cunannealed; ISO 75B-1,-2
Deflection Temperature at 1.8 MPa (264 psi) 58.0 °CISO 75A-1,-2
Vicat Softening Point 155 °CISO 306
 
Descriptive Properties
Processing MethodInjection Molding

**
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