Hostalen 4731 B

About
Hostalen 4731 B is a high density polyethylene (HDPE) with high melt viscosity for extrusion. The product provides excellent stress crack resistance properties (ESCR) combined with very good long term hydrostatic strength, high heat- and extremely high extraction stability. Hostalen 4731 B fullfills the requirements of DIN 16833 / ISO 24033 for PE-RT, Typ II. Typical customer applications are underfloor heating and multilayer pipes for heating and plumbing. The product is not being sold for use in North America.&&

Product Description
SupplierLyondellBasell
GenericHDPE
Material StatusCommercial: Active
FeaturesHigh Viscosity,High ESCR
AvailabilitysAfrica & Middle East ,Asia Pacific,Europe
Process MethodsExtrusion

Technical Data
PHYSICALNominal valueUnitTest method
Density0.947g/cm³ISO 1183
Melt Flow Rate ISO 1133
190℃,21.6kg9.5g/10minISO 1133
190℃,5.0kg0.45g/10minISO 1133
Full incision creep test
4.0 MPa,80℃> 14.6dayISO 16770

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179
-30℃8.0kJ/m²ISO 179
23℃24kJ/m²ISO 179

THERMALNominal valueUnitTest method
Vicat Softening Temp 
A50120ISO 306/A50
B5070.0ISO 306
Oxygen sensing time
210℃40minISO 11357-6

Supplementary informationNominal valueUnitTest method
MRS Classification10.0MPaISO 9080

MECHANICALNominal valueUnitTest method
Shore hardness
Shore D, 3 seconds59 ISO 868
Tensile modulus
Secant, 23 ℃850MPaISO 527-1-2
tensile strength
Yield, 23 ℃22.0MPaISO 527-2/50
Tensile strain
Yield, 23 ℃8.0%ISO 527-2/50

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Processing (melt) temperature200 to 280°C
Melt temperature190 to 220°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. 4.0 MPa, 2% Arkopal N100
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