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Title: Hydrogen effects on materials for CNG/H2 blends.

Conference ·
OSTI ID:1028322

No concerns for Hydrogen-Enriched Compressed Natural gas (HCNG) in steel storage tanks if material strength is < 950 MPa. Recommend evaluating H{sub 2}-assisted fatigue cracking in higher strength steels at H{sub 2} partial pressure in blend. Limited fatigue testing on higher strength steel cylinders in H{sub 2} shows promising results. Impurities in Compressed Natural Gas (CNG) (e.g., CO) may provide extrinsic mechanism for mitigating H{sub 2}-assisted fatigue cracking in steel tanks.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
OSTI ID:
1028322
Report Number(s):
SAND2010-6416C; TRN: US201122%%190
Resource Relation:
Conference: Proposed for presentation at the International Hydrogen Fuel and Pressure Vessel Forum 2010 held September 27-29, 2010 in Beijing, China.
Country of Publication:
United States
Language:
English