ASME B31.12 is the American Society of Mechanical Engineers' code for the design and construction of hydrogen pipelines. While I can't access specific or proprietary content from ASME, I can provide a general overview of the considerations around using 304L stainless steel for hydrogen service based on existing knowledge up to my last update.
304L stainless steel is known for its good corrosion resistance and is often used in various piping


