Materials for Hydrogen Applications

Ensuring Safety and Reliability in Hydrogen Environments

Hydrogen is central to the global energy transition, yet it presents unique technical challenges. When absorbed into metals, hydrogen can trigger embrittlement, leading to delayed and unpredictable failures. This risk is particularly critical in demanding applications such as pipelines, storage systems, and valves, where reliability and safety cannot be compromised.

To ensure long-term performance, materials must demonstrate proven resistance to hydrogen embrittlement, validated through rigorous testing.

Copper Alloys for Hydrogen Applications

AMPCO METAL has conducted an extensive test program to evaluate two of its engineered copper alloys: AMPCOLOY® 83 (beryllium copper) and AMPCO® 18 (aluminum bronze).

Both alloys showed no signs of hydrogen embrittlement under test conditions, confirming their suitability for hydrogen-bearing environments.

Hydrogen Embrittlement Resistance in Copper Alloys

Unlike generic “h5-ready” materials, AMPCO alloys have been validated against international standards (DIN EN ISO 17081, SSRT-test method).

• AMPCOLOY® 83: high strength material non-susceptible to hydrogen embrittlement in the tested conditions, ideal for demanding applications.
• AMPCO® 18: widely used across industries, now validated for safe hydrogen use.

These results confirm that AMPCO alloys offer safe, reliable, and tested solutions where failure is not an option.

Choosing the Right Alloy for Your Hydrogen System

• AMPCOLOY® 83 – Designed for applications requiring exceptional strength, miniaturization, and diffusion barriers against hydrogen permeation.
• AMPCO® 18 – A versatile alloy trusted in diverse industries, now proven for hydrogen use, expanding its role in critical environments.

Applications and Use Cases
AMPCO alloys are ideal for:

• Pipelines and fittings
• Storage vessels
• Valves, connectors, and seals
• Safety-critical components in hydrogen handling systems

Partner with AMPCO METAL

AMPCO METAL is a vertically integrated manufacturer with more than a century of metallurgical expertise. Our technical team supports customers with data, alloy selection, and application-specific advice.

Contact us to learn how AMPCO alloys can ensure safety and performance in your hydrogen application.