Requirements in hydrogen and energy infrastructure
Due to its molecular properties, hydrogen places particularly high demands on materials and joining technology. Even the smallest leaks or unsuitable materials can lead to safety-critical issues in the long term.
In practice, topics such as hydrogen embrittlement, HIC resistance, and the highest requirements for tightness and weld quality are the focus. At the same time, components must withstand high pressure loads during transport and storage.
Design is carried out taking into account relevant codes and standards such as ASME B31.12, EN 13480, AD 2000, and the Pressure Equipment Directive 2014/68/EU.
Nirotec specifically addresses these requirements in material selection and manufacturing—for safe and durable pipe fittings in H₂ applications.
What Nirotec offers in hydrogen and energy infrastructure
With our own forming production and targeted sourcing, we deliver flexible solutions for different requirements within hydrogen projects—from individual components to the complete pipe fittings supply for a plant section.
Our components are used in:
Hydrogen pipelines and distribution networks (gaseous and liquid)
Hydrogen production plants (electrolysis, steam reforming)
Compression and storage systems
Power-to-X plants (PtH₂, PtAmmonia, PtMethanol)
H₂ refuelling station infrastructure
Existing natural gas networks with H₂ blending
Materials
Material selection is critical for H₂ applications. Not every steel is H₂-compatible—especially at higher pressures and temperatures.
- Austenitic stainless steels (preferred for H₂): 1.4301 · 1.4307 · 1.4404 · 1.4435 · 1.4571 – low susceptibility to hydrogen embrittlement
- Low-alloy steels (suitable depending on pressure): L245 · L360 · P355NL – HIC testing to project-specific requirements
- Duplex & special materials: 1.4462 · 1.4410 – for aggressive or chloride-containing H₂ environments
- Nickel alloys: Alloy 625 (2.4856) · Alloy 825 (2.4858) – for extreme applications
Material selection is project-specific, taking into account pressure, temperature, medium and the applicable code or standard.
Quality & documentation
Nirotec is certified to ISO 9001 and AD 2000. Typical services:
- Inspection certificates to EN 10204 (3.1 / 3.2)
- Non-destructive testing (UT, RT, PT, MT)
- Positive Material Identification (PMI)
- Leak and pressure testing
- HIC test reports on request
- Third-party inspections by TÜV, SGS or customer inspectors
- Project-specific ITPs on request
Applications & industries
Discover our other industries
At Nirotec, we provide solutions worldwide for industrial piping systems.
Energy and Power Plant Facilities
Nuclear Technology
Hydrogen and Energy Infrastructure
Chemical and Process Industry
Refineries and Offshore Facilities
Apparatus and Mechanical Engineering
Pipe fittings for hydrogen and energy infrastructure
H₂-suitable materials, standards-compliant documentation. We supply pipe fittings for hydrogen systems, Power-to-X plants and modern energy infrastructure—from our own production and targeted sourcing, with complete technical documentation.
Planning a hydrogen project?
Nirotec supports you with material selection, standards compliance and the supply of H₂-suitable pipe fittings—with the required documentation and technical advice.