EVRAZ North America Completes Testing on Hydrogen Transporting Steel
07/14/2022 - SMA Member Company EVRAZ North America announced this week it has successfully completed fracture toughness testing in a 100% gaseous hydrogen environment on its API 5L X65 Sour Service line pipe.
The company is the first North American pipe producer to do so.
According to a company press release, after 1,000 hours under 100% hydrogen conditions at 100 bar (1,500 psi), the 20 inch x 0.500 inch X65 SS pipe samples demonstrated good fracture toughness and resistivity to hydrogen embrittlement, with K1H values for fracture toughness meeting ASME B31.12 criteria under Option B.
The company also anticipates completion of full qualification testing, under ASME B31.12, of new X65 pipe grades designed for 100% hydrogen and high-impurity CO2 transmission, at pressures up to 100 bar, by the fourth quarter of this year. If successful, the company will be the first North American line pipe producer qualified for high-pressure, 100% hydrogen pipeline transportation.
The testing is being conducted by RINA-CSM S.p.A, an independent European research center specializing.
