+44 (0) 114 4000850   |   US toll-free 877-399-1010


According to NACE MR0175, can UNS S20910 be used for choke valve stems as well as valve stems?

Viewed 3116 Times

Question: Can UNS S20910 be used in the condition specified in table A.3 for choke valve stems as well as valve stems?

Answer: Yes, table A.3 includes choke valve stems since chokes are considered to be a type of valve in the Oil & Gas Industry.

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

Reference: ISO 15156 Maintenance Panel Inquiry #2015-06


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
S1 4GT
United Kingdom


Was this answer helpful ? Yes / No