Reduced Wall Thickness

Slow crack growth initiation can lead to brittle failure. Damos RC has increased resistance to slow crack growth initiation. The potential to downgauge pipe (reduce wall thickness) can be made possible with the appropriate use of design factors and “fit-for-purpose” design methodology. Downgauging decreases costs while increasing efficiency. Reduced material usage lowers pipe costs, while improved flow decreases
pumping costs.

Lower Install Cost

Damos RC has increased resistance to slow crack growth initiation which can be caused by scratches and notches during installation.Damos RC can withstand deeper notches reducing the risk of impacting upon pipe service life when compared to standard PE100 grades. Damos RC can enable installation using lower cost backfill. The high stress crack resistance of Damos RC reduces the risk of crack initiation due to point loads associated with these installation methods.

Increased Service Life

The exceptional resistance to slow crack growth of Damos RC can lead to increased pipe service life, lower maintenance costs and reduced replacement rates. There is the potential for stress concentration to initiate slow crack growth wherever “squeeze-off” is used to manage pipeline flows for planned or emergency maintenance. Damos RC increases resistance to the initiation of slow crack growth wherever these stress concentrators are present.
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Damos RC is designed to meet or exceed the key performance requirements for hydrostatic strength MRS10), slow crack growth resistance (SCGR) and resistance to rapid crack propagation (RCP). Over many years, the mining, water and gas industries have taken advantage of the proven world class performance of Damos RC, using it in pressure pipe in large volumes.

Beyond Minimum Required Strength (MRS)

For Damos pipe grades, we maintain Pipe Pressure data beyond the minimum requirements of the PE100 standard. Working with Damos Technical Service, your pipe design can be optimised to achieve:

• Maximum lifetime design

• Elevated usage temperature

High Resistance to Rapid Crack Propagation (RCP)

Damos RC has passed Rapid Crack Propagation (RCP) tests at critical pressures well above the requirements of the standard. RCP performance data for sub-zero application temperature is also available. RCP performance enables pipe designers to specify:

• Lower in-use temperatures

• Higher safety margins for fluid containment