Material requirements for resistance to sulfide stress cracking (SSC) in sour refinery process environments (i.e., environments that contain wet hydrogen sulfide [H2S]). AKA "wet H2S cracking".
CORRECTION OF PUBLICATION:
In January 2016, NACE published an incorrect version of ANSI/NACE MR0103/ISO 17945:2015 (Petroleum, petrochemical and natural gas industries — Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments). That document was incorrectly titled ANSI/NACE MR0103/ISO 17495:2016. The erroneous standard was retracted at the time and the NACE Store has the corrected version. NOTE: The contents of both versions of the standard are identical. The only discrepancies are in the title.
NACE MR0175/ISO 15156 gives requirements and recommendations for the selection and qualification of carbon and low-alloy steels, corrosion-resistant alloys, and other alloys for service in equipment used in oil and natural gas production and natural gas treatment plants in H2S-containing environments, whose failure could pose a risk to the health and safety of the public and personnel or to the equipment itself.
HISTORICAL DOCUMENT. This NACE Standard establishes material requirements for resistance to sulfide stress cracking (SSC) in sour refinery process environments, i.e., environments that contain wet hydrogen sulfide (H2S). It is intended to be used by refineries, equipment manufacturers, engineering contractors, and construction contractors.
Due to its success in the ductile iron wastewater pipe market, ceramic epoxy coatings are being increasingly specified and successfully applied on nearly every substrate used for immersion service in both the water & wastewater industry. Some unique characteristics set these epoxy coatings apart from their traditional counterparts. For instance, ceramic epoxy systems provide high-film builds, eliminate undercutting, minimize permeability, provide superior edge retention and form a non-ablative film.
The U.S. Army Corps of Engineers owns and operates the vast majority of the countries lock and dam structures for inland navigation. The large steel gates on these structures are subjected to a severe impact and abrasive environment while in immersion by debris such as timber, ice, steel drums, etc. High VOC vinyl resin coatings have historically been the best available coatings for these structures in this environment but have exhibited very poor performance at the water line where the impact and abrasion is at its worse.
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