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SP0472-2020, Methods and Controls to Prevent In-Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments

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  • SP0472-2020, Methods and Controls to Prevent In-Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments
Picture for SP0472-2020, Methods and Controls to Prevent In-Service Environmental Cracking of Carbon Steel Weldments in Corrosive Petroleum Refining Environments
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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.

Product Number: SP0472-2020
ISBN: 1-57590-114-5
Publication Date: 2020
Industries: Refinery/Gas Processing , Oil and Gas , Petroleum Refining
$109.00
$109.00
$109.00

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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.

 

Key Words: environmental cracking, refinery, pressure vessels, heat exchangers, piping, valve bodies, pump cases, compressor cases

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.

 

Key Words: environmental cracking, refinery, pressure vessels, heat exchangers, piping, valve bodies, pump cases, compressor cases

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ANSI/NACE MR0103-2015/ISO 17945-2015, “Petroleum, petrochemical and natural gas industries -- Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments”

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Publication Date: 2015
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HISTORICAL DOCUMENT. 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.
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NACE Publication 8X194-2006-SG, Materials and Fabrication Practices for New Pressure Vessels Used in Wet H2S Refinery Service

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Materials selection, fabrication, postweld heat treatment, inspection, and testing practices for pressure vessels to reduce the likelihood of low-temperature hydrogen damage in wet H2S environments.
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