Alathon L4904



Alathon L4904 is a bimodal, high molecular weight, high density polyethylene resin with excellent processing characteristics. L4904 is selected by customers for pressure pipe applications including gas distribution, industrial piping, mining, oil & gas gathering, municipal water service lines and sewers. Customers typically use L4904 in applications requiring high resistance to pipe failure by rapid crack propagation and slow crack growth mechanisms.  Please contact your LyondellBasell Technical Service Engineer or Sales Manager for an approved color and black masterbatch list.  When L4904 is combined with a LyondellBasell approved color or black masterbatch at the correct use level, this compound may meet the following standards or requirements:

  • ASTM D2513-18a for Polyethylene (PE) Gas Pressure Pipe, Tubing and Fitting, Category C per Table 5
  • ASTM D3350 Cell Classifications: PE445574C, PE445574E, PE445576C, and PE445576E.  For Oxidative Resistance Classification Categorization values (CC), please contact your LyondellBasell Technical Service Engineer or Sales Manager. 
  • CSA B137.1 for Pipe, Tubing, and Fittings for Cold-Water Pressure Services
  • CSA B137.4 for Polyethylene Piping Systems for Gas Services: PE4710 PLUS & PE 100
  • NSF Standard 14 and Standard 61 for Potable Water Pipe and Fittings
  • NSF Standard 14 for Gas Distribution Applications
  • NSF Standard 358-1 for PE Pipe and Fittings for "Geothermal" Heat Pump Systems
  • Plastics Pipe Institute (PPI) PE4710 and PE 100 per PPI TR-3


North America, South & Central America


SDS - Safety Data Sheet
PSB - Product Stewardship Bulletin

Product Data and Technical Information

Typical Properties

Melt Flow Rate (190 °C/2.16 kg) 0.04 g/10 min
Melt Flow Rate (190 °C/5.0 kg) 0.18 g/10 min
Melt Flow Rate (190 °C/21.6 kg) 7.0 g/10 min
Density (23 °C) 0.949 g/cm³
Flexural Modulus (2% Secant) 146000 psi
Flexural Modulus (2% Secant) 1006 MPa
Tensile Stress at Break 5100 psi
Tensile Stress at Break 35.2 MPa
Tensile Stress at Yield 3500 psi
Tensile Stress at Yield 24.1 MPa
Tensile Elongation at Break 615 %
Minimum Required Strength (20 °C) 10 MPa




High Density Polyethylene


Drainage Pipe, Drinking Water Pipe, Gas Pipe, Industrial, Soil & Waste Pipe