Feburary 5th, 2019

High Strength 718 for NACE MR0175 Applications

Tuesday, Feburary 5th, 2019

Topic: High Strength 718 for NACE MR0175 Applications
Speaker:  Greg Chitwood – Metallurgical Consultant


5:30 – 6:30 pm Social Hour
6:30 pm  Dinner served
7:30 pm  Technical Presentation

The Forrest Club

9950 Memorial Dr. Houston, TX 77024

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Understanding the development of a high strength 718 with 150 ksi minimum YS and 45 HRC maximum hardness, balloted and approved by NACE for MR0175 sour service and also adopted by API 6A CRA. The presentation will review the corrosion testing conducted for the preliminary development, and a discussion of hydrogen embitterment resistance regarding this alloy.


Greg has a BS degree in Metallurgical Engineering from Colorado School of Mines in 1981, where he graduated with honors and was a member of the engineering honors society Tau Beta Pi.
After graduation, Greg joined Otis Engineering Corporation(Halliburton) as a Metallurgist based in Carrollton, Texas, where he was responsible for global metallurgical support for downhole completion tools
Greg has been a member of the National Association of Corrosion Engineers since he joined Otis, being active on its committees on oil & gas corrosion. NACE awarded Greg the Presidential Achievement Award in 2005 for his contribution to MR0175, and he has served from 2007 to 2009 as Chairman of the ISO 15156 Maintenance Panel, and currently serves as vice-chairman of Task Group 299 responsible for the oversight to NACE MR0175/ISO 15156.
Greg has published more than 20 technical papers and articles on the subject of corrosion and has been awarded 10 United States patents on materials and use of materials in downhole tools.
Retiring from Halliburton in January 2016 to pursue his interest in metallurgical consulting, Greg joined voestalpine BÖHLER Edelstahl GmbH & Co KG as a consultant, where he supports customer and technical development in the global oil & gas markets.