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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It is generally completed by bringing the two ends together in the vise. Do not use sand- or grit-blasting. Active view current version of standard. This possibility must be considered in selecting the test method. This will ensure detection of intergranular attack resulting from carburizing of one surface of sheet material during the? It may be applied to wrought products. Grind the cross section on wet or dry 80 or adtm abrasive paper a7663 by successively? To avoid scale entrapment, stamp specimens for identi?
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. Last previous edition approved in as A — 93 asstm. In the annealed condition, they are not subject to intergranular corrosion. 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.
All traces of oxide scale formed during heat treatment must be removed. A — 93 8. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It is ideal to have all the specimens in one? Ordinarily, removal of more material than necessary will have little in?
They should have three or four holes in them to increase circulation of the test solution around the specimen. Warning—Protect the eyes and use rubber gloves and apron for handling acid. Avoid excessive heat when dry-grinding.
It may also be used to evaluate the resistance of high purity or stabilized grades to sensitization to intergranular attack caused by welding or heat treatments. The tests can be run without interruption. This abstract is a brief summary of the referenced standard.
A trip balance may be used. Please first verify your email asm subscribing to alerts.
ASTM A763 – 15
NOTE 5—It may be necessary to embed large specimens, such as from heavy bar stock, in copper shot on the bottom of the test? The sample is then rinsed in water and dried.
This test detects susceptibility to intergranular attack associated with the precipitation of chromium carbides and nitrides in stabilized and unstabilized ferric stainless steels. All other microscopical examinations are of the corroded surface under binocular examination see Section It is informational a736 and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
However, several specimens may be tested simultaneously. Additional requirements are noted where necessary. Preparation of Test Specimens The number is limited only by the number of glass cradles that can be? Evaluation by Weight Loss The bend test evaluations for the steel test specimens are presented. Grain dropping is usually an indication of intergranular attack, but the number of dropped grains per unit area that can be tolerated is subject to agreement between the supplier and the purchaser.
Proceed to Checkout Continue Shopping. The test will not differentiate between intergranular attack resulting from carbides and that due to intermetallic phases. NOTE 10—Cracks suspected as arising through poor ductility may be investigated by bending a similar specimen that was not qstm to the boiling test solution.
ASTM A() 铁素体不锈钢晶间腐蚀敏感性检测_百度文库
Combinations of alloys and test methods for which successful experience is available are shown in Table 1. Combinations of alloys and test methods for which successful experience is a76 are shown in Aastm.
For specific safety precautionary statements, see 3. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
The choices are listed in Table 1. Subscription pricing is determined by: The choices are listed in Table 1. Heavy specimens may require bending in a? Add to Alert PDF. The alloys on which the test has been successfully applied are shown in Table 1. The ferric sulfate-sulfuric acid solution may also selectively attack titanium carbides and nitrides in stabilized steels. This may be accomplished with the apparatus prescribed in 3.
Asstm sample must be in a separate cradle so that the samples do not touch. However, if preliminary results are desired, the specimen can be removed at any time for weighing.