HDPE METALEN PE-21

Alternative and trade names
METALEN PE-21
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Description

METALEN PE-21 represents the nanocomposite material created using Monamet 1O4 nano-size active filler (in accordance with TU 2164-017-63341682-2014) introduced in a compound based on high-density polyethylene and a set of modifying additives. METALEN PE-21 compound contains a set of stabilizers of prolonged effect, ensuring long-term oxidative degradation resistance at increase operating temperatures. METALEN PE-21 meets the requirements for class 2-5 polyethylene compounds per STO Gazprom, 2-2.3-13-2007 “Technical requirements for factory-applied outer anti-corrosion polyethylene pipe coatings for construction, reconstruction, and overhaul of underground and offshore gas pipelines with the operating temperature of up to +80°C”.

This material data has been provided by METACLAY .

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

0.94 - 0.965 g/cm³

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GOST 15139

Water absorption

23.0 °C

0.06 %

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Max., GOST 4650, after 24 hours at 23°C

Mechanical

PropertyTemperatureValueComment

Elongation

-45.0 °C

100 %

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Min., GOST 11262

20.0 °C

600 %

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Min., GOST 11262

Tensile strength

23.0 °C

24 MPa

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Min., GOST 11262

Thermal

PropertyValueComment

Melting point

122 - 137 °C

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ISO 11357-3

Rheological Properties

PropertyValueComment

Melt mass-flow rate

0.2 - 0.8 g/10min

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GOST 11645, MFR can be optimized

Technological properties

Property
Application areas

Anti-corrosion protective coating for main steel pipelines.

Fillers

Nano-size active filler

Processing methods

METALEN PE-21 compound is extrusion-applied directly to the pipe surface coated with epoxy primer. Temperature profile: Zone 1: 89°C, Zone 2: 218°C, Zone 3: 219°C, Zone 4: 228°C, Zone 5: 240°C, Zone 6: 245°C, Zone 7: 245°C, Zone 8: 246°C, Zone 9: 244°C, Zone 10: 244°C.