The certification provider has approved the tubes for high-pressure applications with hydrogen, and has said that, dependent on materials, the pipes can be used in temperature ranges between -253oC and 400oC, with pressures up to 900 bar.

According to TÜV SÜD, the certification scope covers longitudinally welded stainless steel tubes from steel types 1.4401, 1.4404, and 1.4425 with nominal widths between 5mm and 205mm.

H2 View understands, the fischer Edelstahlrohren tubes can be used as an alternative solution to seamless tubes in hydrogen technology in plant, machine, and apparatus construction.

TÜV SÜD says it worked with component manufacturers to develop its own ‘material resistance to compressed hydrogen’ standard, based on recognised international regulations and standards, including ASME, B31.12, EIG Doc 121/14, and CSA-CHMC-1, which have formed the basis of the certification awarded to the fischer products.

Dr. Thomas Gallinger, Head of Hydrogen Projects at TÜV SÜD Industrie Service, said, “Our standard enables substantiated statements to be made about the stability of materials and components in the presence of hydrogen.”

Simon Schlei, H2-Readiness Material Export at TÜV SÜD Industrie Service, added, “By applying a well-structured assessment process plus annual surveillance audits at the production sites, we establish the necessary level of trust in the extremely dynamically developing hydrogen market.”