Material grade S41425 is listed as not being sulfur resistant in Table A.18 — “Environmental and materials limits for martensitic stainless steels used for any equipment or components”, ANSI/NACE MR0175/ISO 15156-3:2015(E). For the column ‘Sulfur resistant?’, it says ‘No’. I wanted to confirm that was indeed a correct designation, and not an error.
(MP INQUIRY #2016-13)
No and it is not a misprint.
This question is in relation to NACE MR0175/ISO 15156-3 A.6.2 Table A.18
Reference: ISO 15156 Maintenance Panel Inquiry #2016-13
With a wealth of experience in the oil and gas industry, we provide independent materials and corrosion consultancy to help companies reduce risk, save money and apply best practice in their oil and gas businesses.
Find out more by getting in touch – you’ll get an answer from a qualified, experienced materials engineer every time.
How to get in touch
US: 877-399-1010 (toll free)
66 Eldon St