Hydrogen plays a key role in future energy and mobility systems, but its interaction with structural materials remains a major challenge. Reliable data and standardized testing procedures are essential for safe and sustainable use of hydrogen technologies. By developing reusable workflows, semantic data descriptions, and a shared infrastructure for round-robin tests, this project creates lasting value for the MatWerk community. Strong industrial participation ensures that the solutions are directly aligned with technological needs, while integration with other NFDI initiatives fosters interoperability and long-term impact. The IUC addresses the challenge of systematically capturing, semantically describing, and FAIRly providing data on the effects of hydrogen on metallic materials. It focuses on the semantic description of devices, measurement procedures, and sample history—including hydrogen charging and transportation—as well as the development of workflows and databases for data storage, sharing, and reuse.