Petroleum, petrochemical and natural gas industries - Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments (ISO 17945:2015)
Petroleum, petrochemical and natural gas industries - Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments (ISO 17945:2015)
ISO 17945:2015 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 International 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 are outside the scope of this International Standard. It is intended to be used by refiners, equipment manufacturers, engineering contractors, and construction contractors. Specifically, this International 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 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. ISO 17945:2015 applies to all components of equipment exposed to sour refinery environments (see Clause 6) where failure by SSC would (1) compromise the integrity of the pressure-containment system, (2) prevent the basic function of the equipment, and/or (3) prevent the equipment from being restored to an operating condition while continuing to contain pressure.
EN ISO 17945:2015 (ISO 17945:2015) defines material requirements and guidance for preventing sulfide stress cracking (SSC) of metallic materials in sour petroleum refining environments containing hydrogen sulfide (H2S), either gaseous or dissolved in aqueous phases. It is a materials-focused standard (not a design code) intended for use where SSC could: (1) compromise pressure containment, (2) prevent basic equipment function, or (3) prevent safe restoration of pressurized equipment. The standard is endorsed by CEN as EN ISO 17945:2015.
The standard addresses practical, actionable topics for SSC resistance and material control:
EN ISO 17945:2015 is directly applicable to selection, procurement and fabrication of equipment used in sour refining and related processing, including:
Упомянутые в описании и другие стандарты EN
EN ISO 17945:2015 is an essential reference for reducing SSC risk in sour refinery environments through informed material selection, controlled fabrication, and appropriate qualification practices.