NACE Standard MR-01-75 Material Requirements for Sulfide Stress Cracking Resistant Metallic Materials for Oil Field Equipment

Editorial Revision. — National Association of Corrosion Engineers, 1984. — 27 p.This Standard covers metallic material requirements for resistance to sulfide stress cracking (SSC) for petroleum production, drilling, gathering and flow llne equipment, and field processing facllltles to be used In H2S bearing hydrocarbon service. This Standard applies to the materials used for equipment covered by AISI, AMS,(1) ANSl,(2) API, ASTM, ASME,(3), CSA,(4) and DIN Standards (or by equivalent standards or specifications of other countries). This Standard does not include and Is not Intended to Include design
specifications. Other forms of corrosion or other modes of failure, although outside the scope of this Standard, should also be considered In design and operation of equipment. Severely corrosive conditions may lead to failures by mechanisms other than SSC and should be mitigated by
corrosion Inhibition or materials selection guidelines outside the scope of this document. For example, some lower strength steels used for pipelines and vessels may be subjected to failure by bllster cracking or stepwise cracking due to hydrogen damage associated with general corrosion
In the presence of hydrogen sulflde.