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http://dx.doi.org/10.3795/KSME-A.2012.36.8.829

Effect of Highly Pressurized Hydrogen Gas on Tensile Properties of a Low-Alloy Steel Used for Manufacturing CNG Storage Vessels  

Lee, H.M. (Center for Materials Measurement, Korea Research Institute of Standards and Science)
Jeong, I.H. (Center for Materials Measurement, Korea Research Institute of Standards and Science)
Park, J.S. (Center for Materials Measurement, Korea Research Institute of Standards and Science)
Nahm, S.H. (Center for Materials Measurement, Korea Research Institute of Standards and Science)
Han, J.O. (R&D Division, Korea Gas Corporation)
Lee, Y.C. (R&D Division, Korea Gas Corporation)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.8, 2012 , pp. 829-833 More about this Journal
Abstract
SNG (synthetic natural gas or substitute natural gas) could contribute greatly toward energy security. In addition, HCNG (or $H_2CNG$) is expected to be used as a fuel gas for internal combustion engines and home appliances because it has extremely low emissions and high thermal efficiency. However, the hydrogen contained in SNG or HCNG can deteriorate the mechanical properties of the materials used in existing natural gas infrastructure. Therefore, it is necessary to investigate the effect of hydrogen on the mechanical properties of such materials so that SNG or HCNG can be transported and distributed safely and reliably. In this study, the effect of highly pressurized hydrogen gas on the tensile properties of a low-alloy steel used for manufacturing CNG storage vessels was investigated using the so-called hollow tensile specimen technique.
Keywords
Hydrogen; CNG; Tensile Testing; Low Alloy Steel; Storage Vessel; Hollow Specimen;
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