ASTM A967 05 PDF
Designation: A — 05€* This specification is under the jurisdiction of ASTM Committee A01 Provided by IMS under license with ASTM. The ASTM A passivation standard ensures high quality results for passivated stainless steel. Learn how Able Electropolishing meets these standards. Buy ASTM A /AM: SPECIFICATION FOR CHEMICAL PASSIVATION TREATMENTS FOR STAINLESS STEEL PARTS from SAI.
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FebAnaheim, CA. By meeting standards set by the ASTM and other organizations, we can ensure consistently-high quality for a broad range of metal parts across many atsm.
Able Electropolishing provides metal passivation services that meet the ASTM A standards, as well as other finishing treatments that improve the corrosion resistance of stainless steel and various other alloys.
These tests include the following practices:.
The pad shall be maintained wet through the test period, either by ashm method of retarding external evaporation, by the further addition of potable water, or by backing the pad with a sponge or similar water source. The test solution shall be mixed fresh on the day of the test. It includes several alternative tests, with acceptance criteria, for confirmation of effectiveness of such treatments for stainless steel parts.
This test is not recommended for detection of free iron on ferritic or martensitic series stainless steels, because these steels will give a positive indication irrespective of the presence or absence of anodic surface contaminants. The SI units given in parentheses are for information only. Determination of the suitability of this speci? Precision and Bias Chemical passivation removes free iron and other surface contaminants from stainless steel parts, improving 9a67 resistance.
Rejection and Retest If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Precision Machining Technology Show. This standard does not purport to address all of the safety concerns, if any, associated with its use.
Lot, Frequency of Testing, and Selection of Test The presence of exogenous surface contamination, including dirt, grease, free asgm from contact with steel tooling, and so forth, may interfere with the formation of the passive?
ASTM A967 Passivation Standard
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Practice A—Water Immersion Test The ASTM provides instructions and acceptance criteria for these and other tests that can verify the quality of a stainless steel passivation operation.
It makes no recommendations regarding the suitability of any grade, treatment, or acceptance criteria for any particular application or class of applications. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Such treatments, also sometimes called passivation in common usage, are designated as post-cleaning treatments in this speci? This condition may be prevented by chemically treating the parts to remove the iron particles or other foreign particles, and then allowing the passive?
Practice D—Copper Sulfate Test When electrochemical cleaning is required, it shall be performed in accordance with Practice B Active view current version of standard. An example of a medium that serves to accelerate the formation of the passive? The ASTM A passivation standard applies to the cleaning, passivation and testing of stainless steel parts. The standards that collectively make up the ASTM A passivation specification ensure that nitric and citric stainless steel passivation is performed properly and with quality results.
This standard does not purport to address all of the safety concerns, if any, associated with its use. Appendix X1 gives some nonmandatory information and provides some general guidelines regarding the selection of passivation treatment appropriate to particular grades of stainless steel. Minor changes have been made in the text to facilitate references to the main document and to correct technical inaccuracies.
The effectiveness of any passivation treatment is demonstrated by the parts meeting the speci?
ASTM A – 05 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts
Practice B—High Humidity Test Originally approved in The number of samples tested from a lot subject to retest shall be twice the original speci? A rejected lot may, at the option of the processor, be re-passivated, with or without re-pretreatment, and then be retested. The processor is not required x967 reveal the precise composition of proprietary chemical mixtures but shall maintain a unique identi? Electropolishing and Passivation Standards.
The cloth shall be in contact with the steel for an area of at least 20 square inches cm2. NOTE 1—The selection of medium and procedures for a neutralization depends of the chemistry of the passivation and on economic considerations. NOTE 2—Some of the tests may produce positive indications not associated with the presence of free iron on the stainless steel surface.
Attention shall be given to maintaining adequate volume, concentration, purity, and temperature control appropriate to the size and amount of stainless steel to be treated.
It is recommended for detection of free iron on austenitic and series stainless steels. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. The cloth pad used shall be used for only one such test, being changed for each test so as to avoid risk of contamination. The formation of a dark blue color within 30 s denotes the presence of metallic iron. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.