Technical reference for hydrogen compatibility of materials.

The Technical Reference for Hydrogen Compatibility of Materials summarizes materials data related to hydrogen-assisted fracture (also called hydrogen embrittlement) in gaseous hydrogen environments, with emphasis on hydrogen permeation and structural properties.The Technical Reference generally does not provide specific recommendations for materials selection as the suitability of a given material depends on service conditions, in particular the mechanical and environmental conditions associated with a particular component, as well as the details of the materials microstructure.In substance, the Technical Reference is a collection of stand-alone documents organized by materials class, which have been compiled into this composite report.The individual sections are occasionally updated and new sections are added; the most recent versions are available from our website at http: