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ASTM G150-18
Standard Test Method for Electrochemical Critical Pitting Temperature Testing of Stainless Steels and Related Alloys
Name übersetzen
NORM herausgegeben am 1.5.2018
Informationen über die Norm:
Bezeichnung normen: ASTM G150-18
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.5.2018
SKU: NS-848398
Zahl der Seiten: 13
Gewicht ca.: 39 g (0.09 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM G150-18 :
Keywords:
critical pitting temperature, electrochemical test, pitting corrosion, stainless steel,, ICS Number Code 77.140.20 (Steels of high quality)
Ergänzende Informationen
| Significance and Use | ||||||||||||||||||||
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5.1 This test method provides a prediction of the resistance to stable propagating pitting corrosion of stainless steels and related alloys in a standard medium (see Note 1). The CPT test can be used for product acceptance, alloy development studies, and manufacturing control. In the case of product acceptance, the supplier and user must agree upon the preconditioning of the specimen with regard to surface finish. The test is not intended for design purposes since the test conditions accelerate corrosion in a manner that does not simulate any actual service environment. 5.2 Another method to determine the potential independent CPT with an electrochemical technique has been discussed in the literature 1.1 This test method covers a procedure for the evaluation of the resistance of stainless steel and related alloys to pitting corrosion based on the concept of the determination of a potential independent critical pitting temperature (CPT). 1.2 This test method applies to wrought and cast products including but not restricted to plate, sheet, tubing, bar, forgings, and welds, (see Note 1). Note 1: Examples of CPT measurements on sheet, plate, tubing,
and welded specimens for various stainless steels can be found in
Ref 1.3 The standard parameters recommended
in this test method are suitable for characterizing the CPT of
austenitic stainless steels and other related alloys with a
corrosion resistance ranging from that corresponding to solution
annealed UNS S31600 (Type 316 stainless steel) to solution annealed
UNS S31254 (6 % Mo stainless steel).
1.4 This test method may be extended to stainless steels and other alloys related to stainless steel that have a CPT outside the measurement range given by the standard parameters described in this test method. Appropriate test potential and solution must then be determined. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||||||||||
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