This standard establishes material requirements for resistance to SSC in sour petroleum refining and related processing environments containing H₂S either as a gas or dissolved in an aqueous (liquid water) phase with or without the presence of hydrocarbon. This standard does not include and is not intended to include design specifications. Other forms of wet H₂S cracking, environmental cracking, corrosion, and other modes of failure, although outside the scope of this standard, should be considered in the design and operation of equipment. Severely corrosive and/or hydrogen charging conditions may lead to failures by mechanisms other than SSC and should be mitigated by methods that are outside the scope of this standard.

Specifically, this standard is directed at the prevention of SSC of equipment (including pressure vessels, heat exchangers, piping, valve bodies, and pump and compressor cases) and components used in the refining industry. Prevention of SSC in carbon steel materials categorized under P-No. 1 in Section IX of the ASME Boiler and Pressure Vessel Code (BPVC) is addressed by requiring compliance with NACE SP0472.

Customers who purchased NACE MR0103
also purchased

• NACE MR0175/ISO 15156-2 : Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production — Part 2: Cracking-resistant carbon and low-alloy steels, and the use of cast irons-Second Edition
• API STD 598 : Valve Inspection and Testing-Ninth Edition
• API SPEC 6D CHINESE : Specification for Pipeline Valves-Twenty-Third Edition; Incorporates Errata 1: June 2008, Errata 2: November 2008, Errata 3: February 2009; Errata 4; ISO 14313:2007 Adoption
• ASME B31.3 : Process Piping-Includes Interpretation 22

See More Documents