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ASTM-G150:2010 Edition

ASTM-G150:2010 Edition

$44.96

G150-99(2010) Standard Test Method for Electrochemical Critical Pitting Temperature Testing of Stainless Steels

Published By Publication Date Number of Pages
ASTM 2010 12
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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 methods applies to wrought and cast products including but not restricted to plate, sheet, tubing, bar, forgings, and welds, (see Note 1).

Note 1Examples of CPT measurements on sheet, plate, tubing, and welded specimens for various stainless steels can be found in Ref (1) . See the research reports (Section 14).

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 and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Apparatus
FIG. 1
3 Test Specimens
Reagents and Materials
Applied Potential
Procedure
4 Visual Examination of Test Electrode
Data Analysis
Report
5 Precision and Bias
Keywords
A1. GUIDELINES FOR CALIBRATING THE SPECIMEN TEMPERATURE VERSUS THE TEST SOLUTION TEMPERATURE
A1.1
A1.2
A1.3
A1.4
TABLE 1
6 X1. RELATIONSHIP BETWEEN PITTING POTENTIAL AND CPT
X1.1 Pitting Potential Range
X1.2 Potential Independent CPT
X1.3 Potential Dependent CPT
X1.4
X1.5
X2. FLUSHED PORT CELL
X2.1
X2.2
FIG. X1.1
7 X2.3
X2.4
X2.5
X2.6
X3. MODIFIED G5–TYPE SPECIMEN HOLDER
X3.1
X3.2
X3.3
FIG. X2.1
FIG. X3.1
8 X4. EXAMPLE OF TESTING REPORTING
X4.1
FIG. X4.1
9 X5. STANDARD DATA ENTRY FORMAT
X5.1
X5.2
X5.3
10 FIG. X5.1
11 FIG. X5.1
12 REFERENCES

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