Stainless Steels1. This trendy is issued below the constant designation a ; the range straight away following the designation suggests the yr. This standard is issued under the fixed designation A ; the 1 These practices are under the jurisdiction of ASTM Committee A01 on Steel. Last previous edition approved in as A – DOI: For referenced ASTM standards, visit the ASTM website, , or /A

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Millimeters per month 3 0. For detecting susceptibility to environments known to cause intergranular attack due to these phases use Practice X. For specific safety precautionary statements, see 3. Determine the maximum angle of bend without causing cracks in such material by bending an untested specimen of the same con?

The bend test evaluations for the steel test z763 are presented.

ASTM A() 铁素体不锈钢晶间腐蚀敏感性检测_百度文库

Evaluation by Bend Test ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. The copper should be washed and degreased before use. Fresh test solution would not be needed if the test were to run 48 or 72 h. The effect of galvanic coupling between copper and the adtm specimen may have importance 7.

ASTM A763 – 15

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Application of these standard tests to the other ferritic stainless steels will be by specific agreement between producer and user.

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Warning—Protect the eyes and face by face shield and use rubber gloves and apron when handling acid. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

If any adherent copper remains on the specimen, it may be removed by a brief immersion in concentrated nitric acid at room temperature. For any studies of IGA on Types,orthe indicated test methods are suggested. A — 93 A — 93 8. Rinsing Prior to Examination 8. All traces of oxide scale formed during heat treatment must be removed. D Weight loss measurements can be used to detect severely sensitized material, but they are not very sensitive for alloys noted with this superscript and may not detect slight or moderate sensitization.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. A visual comparison between these specimens should assist in interpretation.

Active view current version of standard. Add to Alert PDF. If there is an appreciable change in the level, repeat the test with fresh solution and a reground specimen. NOTE 1—No substitution for this equipment may be used. Add the acid slowly to the water in the Erlenmeyer? It is ideal to have all the specimens in one? The solution volume-to-sample area ratio shall be maintained. The alloys on which the test has been successfully applied are shown in Table 1.

Immersion of the specimen-holding clamp in the etching solution should be avoided.

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This possibility must be considered in selecting the test method. In the annealed condition, they are not subject to intergranular corrosion. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are astj provided as part of the standard.


This standard is also a76 to be included in Standards Subscriptions. A7663 is important to ensure that the concentration of acid does not become more concentrated and that an adequate number of boiling chips which are resistant to attack by the test solution are present. Four practices, including Practice W, X, Y, and Z, are used for determining susceptibility to intergranular attack in ferritic stainless steel. Preparation of Test Specimens In the annealed condition, they are not subject to intergranular corrosion.

The test will not differentiate between intergranular attack resulting from carbides and that due to intermetallic phases.

For very heavy sections, specimens should be prepared to represent the appropriate surface while maintaining reasonable specimen size for convenience in testing.

An air or hydraulic press may also s763 used for bending the specimens. Already Subscribed to this document. C Preferred criterion, these criteria are the most sensitive for the particular combination of alloy and test. Welded samples should be bent in such a manner that weld and the heat-affected zone are strained.

Combinations of alloys and test methods for which successful experience is available are shown in Table 1. The choices are listed in Table 1. Need more than one copy?

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