API Std 6ACRA Addendum 2
Addendum to Age-hardened Nickel-based Alloys for Oil and Gas Drilling and Production Equipment, First Edition, Includes Addendum 1 (2017), Addendum 2 (2018), Errata 1 (2015), Errata 2 (2018)
Amendment by American Petroleum Institute, 09/01/2018