Main Goals

CANDHy aims to enable hydrogen distribution in low pressure gas grids through consolidated and exhaustive scientific data, coupled with harmonized guidelines for non-steel metallic grid materials.

At least five material grades of different families (such as cast iron, copper, brass, lead, aluminium), both new and vintage, will be fully documented, and the results will be publicly available for all stakeholders in a continuously updated database. Mechanical tests in static and dynamic conditions will assess hydrogen sensitivity following the most relevant current and updated standards.

The CANDHy project is developed in 5 Work Packages:

work packages

WP1 represents a simple, comprehensive but effective technical, financial, and administrative management plan to ensure the project progress, the compliance of the objectives and the participants coordination in a timely manner, verifying quality and costs.

The objectives of WP1 are to:

Leader: FHa

WP2  performs a full review of the state of art of the European gas distribution grids and the standards and codes on testing regarding material compatibility with hydrogen and hydrogen embrittlement mechanisms, to collect information for the development of useful testing protocols to derive the properties of the classes of materials studied in CANDHy in their relevant operating conditions.

The objectives of WP2 are to:

Leader: RINA-CSM

WP3 focuses on the design, development, and performance of the experimental campaign to test the most relevant non-steel metallic materials found in CANDHy under different hydrogen levels to assess their tolerance towards this gas at operating conditions usual for the distribution grid.

The objectives of WP3 are to:

Leader: FHa

WP4 ensures the validation of the experimental campaign performed in WP3 analysing the results obtained and developing a semi-empirical model that can explain hydrogen embrittlement mechanisms in non-steel metallic materials, with the final aim of obtaining pre-normative guidelines for material evaluation under hydrogen service and making the results public in an open database that will be kept updated at the end of the project.

The objectives of WP4 are to:


WP5 ensures D&C of the project results, including the development and implementation of an exploitation strategy increasing the project’s impact. It also develops clustering activities with key stakeholders in across the whole value chain to stablish a solid network as well as include engagement actions with the AB.

The objectives of WP5 are to:

Leader: GERG