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07115 Susceptibility to SOHIC for Linepipe and Pressure Vessel Steels - Review of Current Knowledge

Picture for 07115 Susceptibility to SOHIC for Linepipe and Pressure Vessel Steels - Review of Current Knowledge
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Product Number: 51300-07115-SG
ISBN: 07115 2007 CP
Author: Richard J. Pargeter
Publication Date: 2007
Industry: Materials Selection and Design
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Stress orientated Hydrogen Induced cracking (SOHIC) is a manifestation of sulfide stress cracking (SSC) in C-Mn steels by a mechanism involving the linking of planar cracks normal to the primary propagation direction of the crack. It has been known for many years, and the solution has been considered to be the use of hydrogen induced cracking (HIC) resistant steels. Work by the Materials Properties Council has, however indicated that HIC resistant steels may be more susceptible to SOHIC. This raises questions about both the most appropriate steels, and test methods for evaluating them Published literature has been surveyed, and information pertaining to the mechanisms of SOHIC, with particular reference to the effects of material, fabrication, and service conditions on the risk of cracking, has been extracted. A critical review of this information, along with published information on test methods and results, and information on industrial experience including service failures due to SOHIC, has allowed conclusions to be drawn and recommendations to be made on materials selection, fabrication and testing for resistance to SOHIC.
Stress orientated Hydrogen Induced cracking (SOHIC) is a manifestation of sulfide stress cracking (SSC) in C-Mn steels by a mechanism involving the linking of planar cracks normal to the primary propagation direction of the crack. It has been known for many years, and the solution has been considered to be the use of hydrogen induced cracking (HIC) resistant steels. Work by the Materials Properties Council has, however indicated that HIC resistant steels may be more susceptible to SOHIC. This raises questions about both the most appropriate steels, and test methods for evaluating them Published literature has been surveyed, and information pertaining to the mechanisms of SOHIC, with particular reference to the effects of material, fabrication, and service conditions on the risk of cracking, has been extracted. A critical review of this information, along with published information on test methods and results, and information on industrial experience including service failures due to SOHIC, has allowed conclusions to be drawn and recommendations to be made on materials selection, fabrication and testing for resistance to SOHIC.
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99434 SOHIC - SO WHAT?

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ISBN: 99434 1999 CP
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Picture for Sohic Resistance of SA516 Grade 70 Carbon-Manganese Steel for Oil and Gas Applications
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Sohic Resistance of SA516 Grade 70 Carbon-Manganese Steel for Oil and Gas Applications

Product Number: 51317--9076-SG
ISBN: 9076 2017 CP
Author: Sandra Le Manchet
Publication Date: 2017
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Stress Oriented Hydrogen Induced Cracking (SOHIC) susceptibility of SA516 Grade 70 carbon-manganese steel was studied according to NACE MR0175/ISO15156-2 standard by four-point-bending and constant load test methods. Base metal and welded specimens were investigated.
Picture for 02554 SOHIC RESISTANCE OF C-Mn...
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02554 SOHIC RESISTANCE OF C-Mn PLATE STEELS USED IN REFINERY SERVICE

Product Number: 51300-02554-SG
ISBN: 02554 2002 CP
Author: M.S. Cayard, R.D. Kane, and R.J. Horvath
Publication Date: 2002
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This research effort was designed to evaluate stress-oriented hydrogen-induced cracking (SOHIC) behavior of a broad range of advanced plate steels (0.002 wt% sulfur) that were not produced to enhance resistance to cracking in wet H2S environments. Test results indicated that SOHIC resistance was adversely affected by microstructural (ferrite/pearlite) banding. However, additional factors also played a role in determining SOHIC behavior.
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