Can controlling the hardness of pipes in the production process provide corrosion protection?
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Recently, I read the standard regarding the prevention of hydrogen sulfide stress corrosion cracking, NACE MR0175. It states that such corrosion can be prevented by controlling hardness and nickel content, as well as through heat treatment processes. However, I have also asked some steel mills, and they said that this approach does not seem to achieve the desired anti-corrosion effect. I was wondering if there are anyone who is familiar with this standard or has expertise in anti-corrosion techniques who could tell me whether this method can indeed prevent hydrogen sulfide stress corrosion
The new version of the NACE MR0175 standard has been merged with the ISO15156 series of standards; you can take a look at these revised standards. Furthermore, although hardness is a very important indicator, it is not the only one; it is also related to many other factors such as sulfur content, the level of steel purity, microstructural conditions, and residual stress levels!