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Ri​lsan® BESHV BLK T

is an ultra high viscosity Polyamide 11 grade specifically designed to be extruded into large diameter thick wall pipe. This grade has been specifically engineered to achieve an outstanding balance of properties for Oil Gas piping applications. It offers a cost effective system for non-metallic corrosion free fluid transfer in critical Oil and Gas industry applications. Rilsan® Polyamide 11 is a thermoplastic material permitted by the US Department of Transportation (DOT) under the Code of Federal Regulations (CFR) Title 49, Part 192, for gas distribution piping to be installed and operated at pressures up to and including 250 psi in a design factor of 0.40. The percentage of renewable carbon according to ASTM D6866 (calculated) is 95%.

This material data has been provided by Arkema Technical Polymers.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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.

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PropertyValueConditionTesting Standard

Bio-based content

95 %

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1.03 g/cm³

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ISO 1183


PropertyTemperatureValueConditionTesting StandardComment

Elastic modulus

1.4 GPa

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ISO 527-1/-2


50 %

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ISO 527-1/-2


Elongation at yield

5 %

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ISO 527-1/-2

Impact strength, Charpy notched

-30 °C

11 kJ/m²

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ISO 179/1eA

23 °C

10 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

No Break at 23 and -30°C


ISO 179/1eU

Tensile strength

52 MPa

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ISO 527-1/-2

Yield strength

25 MPa

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ISO 527-1/-2


PropertyValueConditionTesting StandardComment

Melting point

189 °C

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ISO 11357-1/-3


Technological properties

Application areas

Natural Gas Distribution- Fittings,Natural Gas Distribution- Pipes

Processing methods

Injection Molding:

  • Melt Temperature: (Min / Recommended / Max) 240°C / 270°C / 290°C.
  • Mold: (Temperature) 20-60°C.
  • Drying: (Time / Temperature / Desiccant Bed Dryer) 12 hours / 80°C / -40°C. only necessary for bags opened for more than two hours