Which phenomenon restricts hydrogen usage in pipelines made of high-strength steel components under high pressure?

💡 Explanation

When high strength steel pipelines transport high-pressure hydrogen, hydrogen embrittlement occurs because hydrogen molecules dissociate and diffuse into the steel lattice, reducing the material's fracture toughness. Therefore hydrogen embrittlement is primary concern, rather than friction losses, electrolytic corrosion, or cryocooling, conditions requiring different failure modes.

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