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Redefining Corrosion Resistance Requirements for Austenitic Stainless Steels used in Drilling Applications – Part 2: CrNi-Stainless Steels

Product Number: 51323-19277-SG

Author: Julia Ditmann, Helmuth Sarmiento Klapper, Thomas Williams, Bernd Holper, Krutibas Panda, Reece Goldsberry, Wendy Martin, Daryl McIntyre, Clara Herrera, Merlin Seifert

Publication Date: 2023

$20.00

Pitting and environmentally assisted cracking (EAC) are a major concern when austenitic CrMn-stainless steels, which are commonly used for non-magnetic drill collars (NMCD), are exposed to high halide-containing drilling fluids. Even though the fast propagation of environmentally assisted cracks can partially be controlled by the introduction of compressive residual stresses, surface treatments are not intended to address localized corrosion resistance. In fact, it has been demonstrated that CrMn-stainless steels become prone to pitting corrosion when exposed to high Cl- streams at elevated temperature, which ultimately can also lead to stress corrosion cracking (SCC) when sufficient stresses are present.

Products tagged with 'astm a262'

Redefining Corrosion Resistance Requirements for Austenitic Stainless Steels used in Drilling Applications – Part 2: CrNi-Stainless Steels

Association for Materials Protection and Performance