Liberty Pipes Hartlepool has successfully passed trials to become the first UK producer of pipelines for safe transportation and storage of hydrogen.
Physical testing specialist Element Materials Technology confirmed that Liberty’s 42-inch submerged arc welded (SAW) line pipe meets international requirements for hydrogen piping and pipelines set by the American Society of Mechanical Engineers in the standard ASME B31.12 (2019).
The demanding fracture mechanics testing loaded the weld, heat affected zone and pipe material to twice the required stress intensity and exposed them to a 100 barg hydrogen atmosphere for 1000 hours with no crack growth recorded.
Demand for SAW line pipes is rising rapidly as part of the expected need for significant quantities of new pipelines required in the UK over the next 20 years to meet the demands of the transition to Net Zero.
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