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Rulon Bearings

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Ineos K38-20X2091 HDPE  (discontinued **)
Categories: Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE)

Material Notes: K38-20X2091 is a yellow medium density polyethylene resin designed specifically for natural gas pipe extrusion. It exhibits excellent long term stress life and slow crack growth resistance. This material is certified to CSA Standard B137.4-05 and it is recognized by the Plastics Pipe Institute as having a PE 27089(formerly PE 2708) and PE 80 rating. The natural version of this resin is available as K38-20-188.

Key Words: Yellow medium density polyethylene designed for natural gas pipe extrusion. Excellent long term stress life and slow crack growth resistance.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 0.942 g/ccASTM D 4883
Environmental Stress Crack Resistance >= 5000 hourASTM D 1693
 >= 5000 hourASTM F 1248
 >= 5000 hourASTM D 1693
Oxidative Induction Time (OIT) >= 20 min
@Temperature 210 °C
Melt Flow 0.20 g/10 min@190c/2160g; ASTM D 1238
 0.85 g/10 min@190c/5000g; ASTM D 1238
 
Mechanical PropertiesOriginal ValueComments
PENT >= 500 hourASTM F 1473
Hardness, Shore D 64ASTM D 2240
Tensile Strength at Break 4500 psi2 in/min (50 mm/min); ASTM D 638
Tensile Strength, Yield 19.3 MPa2 in/min (50 mm/min); ASTM D638
Elongation at Break >= 800 %2 in/min (50 mm/min); ASTM D 638
Flexural Modulus 0.690 GPaASTM D 790
Izod Impact, Notched 5.30 J/cmASTM D 256
Hydrostatic Design Basis 1000 psi@60c; ASTM D 2837
 1250 psi@23c; ASTM D 2837
 
Thermal PropertiesOriginal ValueComments
Vicat Softening Point 120 °CASTM D 1525
Brittleness Temperature <= -118 °CASTM D 746
 
Descriptive Properties
processPipe Extrusion

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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