Carbon steel for H2 applications

properties allow the production of thinner-walled components (compared to stainless steel) and thus a reduction in weight while increasing the availability of hydrogen pipes and rails. The composition of PPH2 meets the requirements of the EIGA (European Industrial Gases Association) for pipes and containers for the transport of hydrogen. External corrosion protection is provided by a zincnickel coating.

PPH2 has been tested by TÜV Saarland/TÜV Rheinland in accordance with DIN EN ISO 11114 in 2021 and approved for use in hydrogen applications under EU Regulation (EC) No. 79/2009. With the successful testing according to ANSI/CSA CHMC 1-2014, a material compatibility test according to another set of regulations has now been added. In a cooperation with the testing institute TÜV SÜD Chemie Service GmbH, Poppe + Potthoff was also able to have the material tested according to a newly developed testing methodology. The results of this test also confirm the successful outcome of the CHMC1 test.

As a development partner for its customers, Poppe + Potthoff independently develops and produces components such as pipes or rails made of PPH2 for up to 700bar nominal pressure. Pipes, H2 rails (manifolds) and interfaces have been successfully certified in PPH2 by an independent testing institute according to EC79 and successfully tested according to the maximum requirements of HGV3.16.

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Northants Precision has invested in a third Lynx lathe from Mill CNC to increase its machining capacity and capabilities.

The latest arrival, a 6” chuck Lynx 2100 will help meet a significant increase in demand from the company’s growing customer base, which is predominantly in the motorsport sector.

The new machine joins a Lynx 2100LMB and a Lynx 2100LB, purchased by the company in May and December 2021.

In addition to these three lathes, Northants Precision also has an older Lynx 220LSY lathe, equipped with sub-spindle, Y-axis and driven tooling capabilities, that owner and director, Daniel Green, already had in his possession when he created the company back in August 2020.

Together, these four Fanuccontrolled lathes, two of which have integrated multi-tasking capabilities, provide Northants Precision with the ability to offer quick-turnaround machining of small, complex and high-precision turned and milled parts.

Parts machined on the Lynx lathes are small, typically round and cylindrical in shape, and are held securely in position using 5C collet chucks to ensure high accuracy and the high precision machining of intricate features.

They include components for F1, rally and supercars chassis, sub-frames, gearboxes, track rod ends and engines.

Part volumes vary from oneoffs to batches of thousands and