Can Inconel N07718 be used as a spring material under ISO 15156-3?

Understanding ISO 15156-3 Table A.32 and Table A.36 for nickel-based alloys

This page provides an answer to a common question regarding the interpretation of ISO 15156-3 Table A.32 and Table A.36 for nickel-based alloys used in springs. The inquiry seeks clarification on whether Inconel N07718 can be used as a spring material while adhering to the maximum hardness of 40 HRC.

According to ISO 15156-3 Table A.32, materials listed are acceptable for “”any equipment or component,”” including springs. Additionally, other materials from other “”any equipment or components”” tables may also be acceptable for springs if used within the metallurgical and environmental limits specified in the applicable tables.

NACE MR0175/ISO 15156-3 A.9.2, Table A.32, and ISO 15156 Maintenance Panel Inquiry #2013-03

This question pertains to NACE MR0175/ISO 15156-3 A.9.2, Table A.32, and the reference cited is ISO 15156 Maintenance Panel Inquiry #2013-03.

Update on Inconel 718 under NACE MR0175 2015 – Technical Circular 1

Lastly, the page includes an update from 2018 concerning NACE MR0175 2015 – Technical Circular 1, which has implications for Inconel 718.