Technical datasheet
Marlex® HXB TR-494 Polyethylene
Supplied byChevron Phillips Chemical- Last Updated on Feb 19, 2026
Marlex® HXB TR-494 Polyethylene by Chevron Phillips Chemical is a high density polyethylene (HDPE) hexene copolymer grade. It possesses broad molecular weight distribution and extra-high molecular weight. This grade exhibits melt strength, pipe stiffness and impact-, creep-, chemical and slow crack growth resistance. It is processed by corrugated pipe extrusion. It is used in roadway culverts, storm sewers, conduit/ducts and land drainage. Marlex® HXB TR-494 Polyethylene meets ASTM D4976-PE 235, AASHTO M 294, AASHTO M 252, ASTM D3350 and CellClass PE445640A.
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Marlex® HXB TR-494 Polyethylene properties
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| 2% Secant Flexural Modulus | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Elongation at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Notched Constant Ligament Stress (NCLS) | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Tensile Strength at Yield | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Environmental Stress Cracking Resistance (ESCR) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Environmental Stress Cracking Resistance (ESCR) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index) | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Melting Point | 0.0 Visible After Login | Visible After Login | Visible After Login |