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Guidelines to prevent environmental cracking of weldments in carbon steel refinery equipment and piping. Welding processes: SMAW, GMAW, FCAW, GTAW and SAW.
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Examines varying procedures used by industry to protect austenitic stainless steel equipment while idle. Basic protection methods include nitrogen purging, alkaline wash solutions, and dry air purging. Protection of reactors is also addressed.
This standard practice provides mitigation methods to protect austenitic stainless steels and other austenitic alloys from polythionic acid (PTA) stress corrosion cracking (SCC) that can occur during a shutdown of refinery equipment. A shutdown includes the actual down time period and the contiguous periods required to shut down and start up the equipment.
This standard practice provides format, content, and other guidelines for developing a materials selection diagram (MSD). An MSD documents the materials selection of new equipment and piping for the refinery, process chemical, power, and other industries. Information is also provided on key issues that arise when materials are selected.
Developing a materials selection diagram (MSD) to document the materials selection of new equipment and piping for the refinery, process chemical, power, and other industries. HISTORICAL DOCUMENT
Guías para prevenir formas de agrietamiento ambiental en uniones soldadas de equipos de acero al carbón en refinerías - recipientes presión, intercambiadores de calor, tuberías, cuerpos de válvulas y carcazas de bombas y compresores.
Guidelines to prevent most forms of environmental cracking of weldments in carbon steel refinery equipment and piping. Processes covered: SMAW, GMAW, FCAW, GTAW, SAW.
This standard establishes guidelines to prevent most forms of environmental cracking of weldments in carbon steel refinery equipment, including pressure vessels, heat exchangers, piping, valve bodies, and pump and compressor cases. Weldments are defined to include the weld deposit, base metal HAZ, and adjacent base metal zones subject to residual stresses from welding. It defines standard practices for producing weldments in P-No. 1 steels resistant to environmental cracking in corrosive petroleum refining environments. This standard is maintained by Task Group 326.