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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Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. NOTE 7—Conversion factors to other commonly used units for corrosion rates are as follows: 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.
This standard is also available to be included in Standards Subscriptions. This test detects susceptibility to intergranular attack associated with the precipitation of chromium carbides or nitrides in unstabilized and stabilized ferritic stainless steels.
Practice W is used as a screening test to avoid the necessity, for acceptable specimens, of more extensive testing required by Practices X, Y, and Z. Combinations of alloys and test methods for which successful experience is available are shown in Table. ASTM International takes no position respecting the validity of any patent rights asserted a7663 connection with any item mentioned in this standard.
The effect of galvanic coupling between copper and the test specimen may have importance 7. Times for alloys not listed in Table 1 are subject to xstm between the supplier and the purchaser.
All traces of oxide scale formed during heat treatment must be removed. Supplementary requirements are noted as required. The tests can be run without interruption for the time speci? Grind the cross section on wet or dry 80 or grit abrasive paper followed by successively?
For any studies of IGA on Astj,orthe indicated test methods are suggested. Active view current version of standard.
For detecting susceptibility in environments known to cause intergranular attack due to these phases, use Practice X. Application of these standard tests to the other ferritic stainless steels will be by specific agreement between producer and user.
The choices are listed in Table 1. Evaluation by Bend Test This possibility must be considered in selecting the test method.
Need more than one copy? Such treatment of test specimens is not permissible, except in tests undertaken to demonstrate such surface effects. Specimens with unacceptable microstructures should be subjected to Practices X, Y, or Z to better determine their susceptibility to intergranular attack.
It is generally completed by bringing the two ends together in the vise. Gas evolved at the electrodes with entrained oxalic acid is poisonous and irritating. Begin timing the test period when the solution reaches the boiling point.
ASTM A() 铁素体不锈钢晶间腐蚀敏感性检测_百度文库
A small amount of copper shot eight to ten pieces on the bottom of the? The bend test evaluations for the steel test specimens are presented. Historical Version s – view previous versions of standard. It may also detect the presence of chi or sigma phase in these steels. This possibility must be considered in selecting the test method. For specific safety precautionary statements, see 3. Ordinarily, removal of more material than necessary will have little in?
ASTM A Sensitization Testing of Ferritic Stainless Steel
Overall length shall be about mm 13 in. It may be applied to all wrought products and weld metal. A trip balance may be used. Link astk Active This link will always route to the current Active version of the standard. The size of the cradles should be such that they can pass through the ground-glass joint of the Erlenmeyer?