What is NACE?
While working in piping, you may have come across the term NACE Pipe. Well. Pipes are generally defined by materials such as carbon steel or stainless steel or by manufacturing type such as seamless or saw pipe. So then, what is this NACE?
The complete form of NACE is the National Association of Corrosion Engineers International. It is now renamed as AMPP – Association for Materials Protection and Performance. This agency published various corrosion testing standards that are widely used in Oil and Gas.
When process fluids are corrosive, the material of pipe should be selected in such a way that it can withstand such an environment throughout its lifetime. These types of metals are required to be tested in such an aggressive environment to prove their capability.
The pipes that are used in Sulphide Stress Cracking and Hydrogen Induced Cracking Service are tested with NACE standards. NACE MR0175 and NACE MR0103 are the most widely used standard for these services.
These testing are carried out according to NACE TM 0177 and TM 0284.
NACE TM 0177 is a testing standard for Laboratory Testing of Metals for Resistance to Specific Forms of Environmental Cracking in H2S Environments.
And NACE TM 0284 is the Standard Test Method for the Evaluation of pipelines and Pressure Vessel Steels for Resistance to Hydrogen-Induced Cracking.
So, when carbon steel pipes such as ASTM A106 Gr B, ASTM A333, Grade 6, and API 5L, Grade B, seamless, and API 5LX pipes are also tested with this NACE standard in addition to regular tests, these pipes are referred as a NACE pipe.
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