+44 (0) 114 4000850   |   US toll-free 877-399-1010
office@oilandgascorrosion.com

FAQs

NACE MR0175, austenitic stainless steels, Table A.2 and the technical circulars.

Viewed 6305 Times

We have a full article on the latest revision of NACE MR0175 2015, make sure you read the full article as it addresses austenitic stainles steels.

Question: NACE MR0175/ISO 15156-3: 2009(E) Table A2 & NACE MR0175/ISO 15156-3: 2009/Cir.2:2013(E), Table A2 As long as the partial pressure of H2S is below 15 psi and Flowing medium temperature is below 140 DEG F Any combinations of chloride concentration and in situ pH occurring in production environments are acceptable and materials as suggested under clause A2 “Austenitic stainless steels” can be selected.

Answer:

As long as your definition of “Flowing medium temperature” is “exposure temperature” your interpretation is correct. Note that these materials shall be of type described in A.2, shall be in the solution-annealed and quenched, or annealed and thermally-stabilized heat-treatment condition, be free of cold work intended to enhance their mechanical properties, and have a maximum hardness of 22 HRC.

This question is in relation to NACE MR0175/ISO 15156-3 Table A.2

Reference: ISO 15156 Maintenance Panel Inquiry #2015-02 Q2 & Q3

alloy select is the only web-based software for materials selection of oil and gas assets and has been developed by the team of experts at Oil & Gas Corrosion. alloy-select can help you confirm austenitic stainless steels are suitable for production environments and verify compliance with NACE MR0175 and other industry standards. To learn more about alloy-select visit alloyselect.com

At Oil & Gas Corrosion we see many enquiries related to the 316, 316L and other austenitic stainless steels. Let us help you find the optimal solution for you.

 

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.

 

USA toll-free

 

US: 877-399-1010 (toll free)
UK: +44(0)1144000850

66 Eldon St
Sheffield
S1 4GT
United Kingdom

 

Was this answer helpful ? Yes / No