AMPP Store - Products tagged with 'stress corrosion cracking (scc)'

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NACE TM0316-2023, Four-Point Bend Testing of Materials for Oil and Gas Applications

Product Number: NACE TM0316-2023

Publication Date: 2023

$109.00

Four-point bend testing is used extensively in the oil and gas industry to evaluate resistance of metals to sulfide stress cracking and stress corrosion cracking. The face of the specimen to be tested is stressed in tension and the reverse face in compression. The test is carried out for a specified exposure period with the specimen held under constant displacement using compact loading jigs. The compact nature of the jigs enables testing of several specimens in the test vessel simultaneously. Despite the apparent simplicity of the test, there are many factors that can influence the test results. The purpose of this standard is to establish a reliable methodology for conducting the tests to enhance repeatability and reproducibility of test data. The results of the tests can then be used with greater confidence to rank the performance of metals, the relative aggressiveness of environments, and to provide a basis for qualifying metals for service application. As such, the standard will be of particular benefit to materials and corrosion engineers in the oil and gas sector and to test laboratories providing critical data.

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Role of Material Condition on Precursor Corrosion Damage and Stress Corrosion Crack Initiation Behavior of Alloy 600 in PWR Primary Water

Product Number: 51320-14536-SG

Author: Ziqing Zhai, Mychailo Toloczko, Stephen Bruemmer

Publication Date: 2020

$20.00

Stress corrosion crack (SCC) initiation testing has been performed on a 15% cold-worked UNS N06600 (Alloy 600) heat in mill-annealed (MA), solution annealed (SA), and thermally treated (TT) conditions to assess the role of grain boundary (GB) carbides on stress-assisted intergranular attack (IGA) and short crack nucleation and growth. The SCC initiation tests were conducted at a constant load equivalent to the materials’ yield stress in 360oC simulated pressurized water reactor primary water. Results revealed the highest SCC initiation susceptibility occurred in the Alloy 600 MA material, followed by the TT and SA materials, suggesting that GB carbide distribution did not have a controlling effect on SCC initiation resistance. Quantitative assessments of IGA and short cracks were conducted to help understand this phenomenon, and the role of GB carbides in precursor damage development that leads to differences in macroscopic SCC initiation behavior are discussed.

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RP0170-1985 - Protection of Austenitic Stainless Steel From Polythionic Acid Stress Corrosion Cracking During Shutdown of Refinery Equipment-HD1985

Product Number: 21002-HD1985

Author: NACE

Publication Date: 1983

$179.00

Methods to protect austenitic stainless steel from polythionic acid stress corrosion cracking (SCC) found to occur during downtimes and contiguous shutdown and start-up periods. Historical Document 1986

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RP0170-1993- Protection of Austenitic Stainless Steels and Other Austenitic Alloys from Polythionic Acid Stress Corrosion Cracking during Shutdown of Refinery Equipment-HD1993

Product Number: 21002-HD1993

Author: NACE

Publication Date: 1993

$179.00

Methods to protect austenitic stainless steel and other austenitic alloys from polythionic acid stress corrosion cracking (SCC) occurring during downtimes and contiguous shutdown and start-up periods. Historical Document 1993

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RP0170-1997 - Protection of Austenitic Stainless Steels and Other Austenitic Alloys from Polythionic Acid Stress Corrosion Cracking during Shutdown of Refinery Equipment-HD1997

Product Number: 21002-HD1997

ISBN: 1-57590-039-4

Author: NACE International

Publication Date: 1997

$179.00

Methods to protect austenitic stainless steel and other austenitic alloys from polythionic acid stress corrosion cracking (SCC) occurring during downtimes and contiguous shutdown and start-up periods. Historical Document 1997

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SCC Growth In BWR-NWC Of A Low-Alloy Steel With Intermediate S-Content Tested At K Between 50 And 70 Mpa√M

Product Number: ED22-17305-SG

Author: Martin Bjurman, Elena Calota, Björn Forssgren, Johan Stjärnsäter

Publication Date: 2022

$20.00

Stress corrosion cracking (SCC) of RPV steels has shown fairly quick initiation and high crack growth rates (CGRs) in simulated normal water chemistry (NWC) autoclave tests. Still the operating experience shows no known cases that reflect this high sensitivity. The bulk of these tests have been conducted on either high sulfur material, with significant dynamic loading and/or in high sulphate or chloride environments. Recent studies at PSI and GE have shown increased CGRs at 3-5 ppb chloride. This led to the limit for normal operating conditions in the EPRI BWR water Chemistry Guidelines [3,4] to be reduced from 5 to 3 ppb of chloride during the course of this project. The effects on the in-crack chemistry of test specimens vs. those of real cracks, and the effect of cladding on cracking in LAS have been debated.

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SP0170-2018-SG Protection of Austenitic Stainless Steels and Other Austenitic Alloys from Polythionic Acid Stress Corrosion Cracking During a Shutdown of Refinery Equipment

Product Number: 21002-SG

ISBN: 1-57590-039-4

Publication Date: 2018

$109.00

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.

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Stress Corrosion Cracking (SCC) and Electrochemical Corrosion Study of Cold Formed Alloy 625 (UNS N06625) In Extremely Low pH and High Chloride Conditions

Product Number: 51322-17782-SG

Author: Suresh Divi, Sri Krishna Chimbli

Publication Date: 2022

$20.00

Alloy 625 (UNS N06625) is an austenitic solid solution strengthened nickel-chromium-molybdenum alloy containing niobium. The high alloy content of alloy 625 enables it to withstand a wide variety of severe corrosive environments. In mild environments, such as ambient atmosphere, fresh and seawater, neutral salts and alkaline media, there is almost no attack.

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Stress Corrosion Cracking And Hydrogen Embrittlement of High-Strength Non-Magnetic Alloys In Hot Concentrated Brines

Product Number: 86162-SG

Author: J. G. Erlings, H.W. de Groot, J.F.M. van Roy

Publication Date: 1986

$20.00

Unexpected brittle failures of UNS NO5500 drill string parts and non-magnetic drill collars have recently been observed in cases where the UNS NO5500 components were galvanically coupled to carbon steel in concentrated salt solutions at temperatures between ambient and higher than 373 K. Cracking occured preferable at locations with a tri-axial stress condition (roots of threads) and has been ascribed to hydrogen embrittlement.

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Stress Corrosion Cracking of Austenitic Grade 347 and Duplex Grade 2205 Stainless Steels in Refinery Simulated Media Containing Hydrogen Sulfide and Chloride

Product Number: 51320-14406-SG

Author: K. Ravindranath, B. Al-Wakaa, R. Alazemi, N. Tanoli

Publication Date: 2020

$20.00

Stabilized austenitic stainless steel (SS) grade 347 is used extensively in high-temperature processes in the petroleum refining industry, while duplex SS (DSS) grade 2205 is a relatively newer material in the industry. Though these grades of SSs perform well in refinery process streams, there are incidents of failure of process equipment attributable to stress corrosion cracking (SCC). The paper deals with a study on the cracking susceptibility of SS grade 347 and DSS grade 2205 in refinery simulated process environments containing hydrogen sulfide and chloride. The paper also reports the electrochemical behavior of these SSs in the medium containing hydrogen sulfide and chloride. The electrochemical behavior of the alloys was assessed by cyclic polarization experiments. Slow strain rate test (SSRT) was used to evaluate the susceptibility of the alloys to SCC. The cyclic polarization studies indicate that the H2S – chloride synergism had a pronounced effect on the localized corrosion susceptibility of 347 SS, while the effect was marginal on the alloy DSS 2205. The SCC susceptibility of 347 SS and DSS 2205 is strongly influenced by hydrogen sulfide-chloride synergism. Initiation of corrosion pits and the sulfidation of active pits due to the synergism were the important steps in the initiation of SCC.

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TM0111-2011-SG Slow Strain Rate Test Method for Evaluation of Ethanol Stress Corrosion Cracking in Carbon Steels

Product Number: 21255-SG

ISBN: 1-57590-242-7

Publication Date: 2011

$109.00

Slow strain rate (SSR) test method for screening and evaluating susceptibility of steels to ethanol Stress Corrosion Cracking (SCC). Relevent to the distribution of fuel ethanol.

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TM0198-2020, “Slow Strain Rate Test Method for Screening Corrosion-Resistant Alloys for Stress Corrosion Cracking in Sour Oilfield Service”

Product Number: TM0198-2020

ISBN: 1-57590-051-3

Publication Date: 2020

$109.00

This standard establishes a slow strain rate (SSR) test method for screening corrosion-resistant alloys (CRAs) (i.e., stainless steels and nickel-based alloys) for resistance to stress corrosion cracking (SCC) at elevated temperatures in sour oilfield production environments. The SSR test, which is relatively short in duration, incorporates a slow, dynamic strain applied at a constant extension rate. This results in acceleration of the initiation of cracking in susceptible materials, thereby simulating rather severe conditions.

The standard specifies reagents, test specimen, test equipment, determination of baseline material properties, environmental and mechanical test conditions, test procedure, and analysis and reporting of test results. It is intended for use by laboratory investigators for screening CRAs for resistance to SCC in sour oilfield service.

This revision extends the scope of the standard to address the screening of precipitation-hardened nickel-based alloys for resistance to hydrogen induced stress cracking (HISC) using the SSR test method.

Products tagged with 'stress corrosion cracking (scc)'

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