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Marlex® H516HP High-Density Polyethylene (HDPE)

Yellow MDPE Gas Pipe

Marlex® H516HP high-density polyethylene (HDPE) is a high-performance bimodal ethylene-hexene copolymer engineered for pressure pipe applications. 

Its resistance to slow and rapid crack propagation supports demanding gas distribution and energy piping systems. 

Produced using CPChem’s proprietary MarTECH® loop slurry process and advanced catalyst technologies, Marlex® HDPE resins deliver uniform molecular structure, predictable processing behavior and dependable performance across pipe extrusion platforms.

Connect with our PE product experts 

Product Information
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Contacts

Kyle Miller

Polyethylene Sales | US & Canada

Americas

832-813-4372

Email

Nikki Dickerson

Polyethylene Sales | LATAM

Americas

Email

Chevron Phillips Chemical Company LP

General

Americas

+1-832-813-4100

Norman Chua

China Country Manager / North Asia Polymers Manager

Asia

Email

Jack Wee

South Asia Polymers Sales Managers

Asia

Email

Chevron Phillips Chemicals Asia Pte Ltd

Asia Region Polymer sales

Asia

Email

Low Wah Chye

ASEAN Polymers Sales Manager

Asia

Email

Chevron Phillips Chemicals International N.V.

Europe, Middle East, Africa

+32-0-2-689-12-11

John Van Gansberghe

Polymers Sales

Europe, Middle East, Africa

+32-0-2-689-12-43

Email

Properties 

PropertyTypical ValueTest Method
HLMI (190°C/21.6 kg)8.0 g/10 minASTM D1238
Density0.949 g/cm3ASTM D1505
Flexural Modulus (2% Secant)140,000 psiASTM D790
Tensile Strength at Yield3,700 psiASTM D638
PENT Slow Crack Growth>10,000 hASTM F1473

Key Characteristics of Marlex® H516HP HDPE 

  • Excellent long-term hoop strength
  • Superb resistance to slow crack growth 
  • Exceptional resistance to rapid crack propagation 
  • Outstanding low-temperature toughness 

 

These HDPE resin properties make Marlex® H516HP PE a dependable choice for pipe and corrugated extrusion applications requiring long-term durability and reliable processing.

HDPE Resin for Pressure Pipe

HDPE resins are engineered for a wide range of pipe and corrugated extrusion applications.

Marlex® H516HP PE is optimized for pressure pipe extrusion applications. 

Typical Applications

Non-exhaustive list of applications:

  • Energy piping systems
  • Gas distribution 

 

These applications benefit from balance of stiffness, toughness, environmental stress crack resistance and long-term performance in pipe systems. 

Contact our polyethylene specialists for processing support

Why Choose CPChem as Your HDPE Supplier

Proven Polyethylene Leadership

A leading HDPE producer since the 1950s with deep polymer science expertise

Broad Portfolio

Broad HDPE portfolio supporting pressure pipe, conduit and corrugated infrastructure

R&D and Technical Service

World-class R&D and technical service teams supporting pipe system design

Reliable Global Supply

Reliable global supply from ISO 9001–certified manufacturing facilities

Innovation and Sustainability

Commitment to innovation and sustainability, including Marlex® Anew™ Circular Polyethylene