Question: Is a welding consumable with a nickel content of 1.03% acceptable or is 1.00% the maximum allowed?
For carbon and low-alloy steels, 1% nickel has been set to be the maximum to avoid SSC. However, a value above 1% could be used if it is qualified as stated in A.2.1.4. It is not the role of the Maintenance Panel to give an opinion on a specific metallurgical issue.
This question is in relation to NACE MR0175/ISO 15156-2 Clause 220.127.116.11
Reference: ISO 15156 Maintenance Panel Inquiry #2009-20
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.
US: 877-399-1010 (toll free)
66 Eldon St