# 2001 Munich
Magnetic detectable polyethylene (PE) pipe has been developed for the gas distribution system that has permanent detection for locating underground piping. Magnetic detectable PE pipe differs from normal PE pipe by the addition of magnetic particles in the PE resin, which are magnetized in a sinusoidal pattern during the extrusion process. Three major issues that were considered in the development of magnetic detectable PE pipe were to minimize production costs, maintain strength and durability, and maximize in-service detectability. The benefit of magnetic detectable PE pipe is that it eliminates the additional cost and problematic issues associated with the tracer wire locating system. Through an integrated experimental and analytical approach, these three major issues have been resolved. On the basis of this research, a commercially feasible pipe technology is available which will provide costs savings to the industry and reduce the propensity for third party damage resulting from mis-locates.