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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A number in parentheses indicates the year of last reapproval.
A rejected lot may, at the option of the processor, be re-passivated, with or without re-pretreatment, and then be retested. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? An example of a medium that serves to z967 the formation of the passive? Originally approved in This standard does not purport to address all of the safety concerns, if any, associated with its use.
The effectiveness adtm any passivation treatment is demonstrated by the parts meeting the speci?
Gain access to the technologies and people in aerospace and defense manufacturing. Practice D—Copper Sulfate Test Cleaning by mechanical methods or other chemical methods is recommended.
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.
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. AeroDef April 30 – May 1 Gain access to the technologies and people in aerospace and defense manufacturing.
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. The formation of a dark blue color within 30 s denotes the presence of metallic iron. Practice A—Water Immersion Test Practice F—Free Iron Test When electrochemical cleaning is required, it shall be performed in accordance with Practice B These tests include the following practices: It makes no recommendations regarding the suitability of any grade, treatment, or acceptance criteria for any particular application or class of applications.
Last previous edition approved in as A — 01e1. These tests include the following practices:. Precision and Bias The parts shall then be thoroughly dried. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. The cloth shall be in contact with the steel for an area of at least 20 square inches cm2.
Electropolishing and Passivation Standards. Stainless Steel Passivation and More 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 50 alloys. Minor changes have been made in the text to facilitate references to the main document and to correct technical inaccuracies.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided asttm part of the standard. The presence of exogenous surface contamination, including dirt, grease, free iron from contact with steel tooling, and so forth, may interfere with the formation of the passive?
Such treatments, also sometimes called passivation in common usage, are designated as post-cleaning treatments in this speci? FebAnaheim, CA.
The pad shall be maintained wet through the test period, either by a method of retarding external evaporation, by the further addition of potable water, or by backing the pad with a sponge or similar water source. It is especially useful for large parts that have been uniformly cleaned but that are inconvenient for reasons of size of equipment or ease of handling of the part to place in the environments de?
Not all of the following tests are suitable for all grades of stainless steel. Immersion bath to be controlled at a pH of 1. NOTE 1—The selection of medium and procedures for a neutralization depends of the chemistry of the passivation and on economic considerations. These tests include the following practices: Materials and Preparation for Passivation Treatments 5. This standard does not purport to address all of the safety concerns, if any, associated with its use.
The SI units given in parentheses are for information only. This cycle shall be repeated a minimum of twelve times. Treatments in Nitric Acid Solutions 6.
ASTM A Passivation Standards | Passivated Stainless Steel Parts
These ASTM-approved tests may include:. Current edition approved Sept. Treatments in Citric Acid 7. The effectiveness of a particular treatment for a particular grade of stainless steel in a particular application is demonstrated by meeting the speci?
Lot, Frequency of Testing, and Selection of Test The suitability of such passivation treatments for use in 3 meeting the requirements of this speci?
ASTM A967 Passivation Standard
Appendix X1 gives some nonmandatory information and provides some general guidelines regarding the selection of passivation treatment appropriate 9a67 particular grades of stainless steel. All samples must pass the speci? An example would be application of Practice C on some lesser-alloyed martensitic or ferritic stainless steels.
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. The surface of stainless steel resulting from these treatments is free of scale, free iron, and exogenous foreign matter, and does not require a separate treatment for passivation as de?