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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These ASTM-approved tests may include:.
Originally approved in This cycle shall be repeated a minimum of twelve times. Gain access to the technologies astk people in aerospace and defense manufacturing. Lot, Frequency of Testing, and Selection of Test The formation of a dark blue color within 30 s denotes the presence of metallic iron. The SI units given in parentheses are for information only.
ASTM A967 Passivation Standard
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. It includes recommendations and precautions for descaling, cleaning, and passivation of stainless steel parts. This condition may be prevented by chemically treating the parts to remove the iron particles or other foreign particles, and then allowing the passive? Treatments in Nitric Acid Solutions 6.
May 15 — 16, Boston, MA. 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 industries.
Appendix X1 gives some nonmandatory information zstm provides some general guidelines regarding the selection of passivation treatment appropriate to particular grades of stainless steel. NOTE 1—The selection of medium and procedures for a neutralization depends of the chemistry of the passivation and on economic considerations.
This standard does not purport to address all of the safety concerns, if any, associated with its use.
The number of samples tested from a lot subject satm retest shall be twice the original speci? It includes several alternative tests, with acceptance criteria, for confirmation of effectiveness of such treatments for stainless steel parts. Treatments in Citric Acid 7. The presence of exogenous surface contamination, including dirt, grease, free iron a67 contact with steel tooling, and so forth, may interfere with the formation of the passive?
Rinsing can be accomplished by a combination of stagnant, countercurrent or spray rinses, or both, prior to? The suitability of such passivation treatments for use in 3 meeting the requirements of this speci? This standard does not purport to address all of the safety concerns, if any, associated with its use.
This test is not recommended for detection of free iron on ferritic or martensitic series stainless steels, because these steels will give a awtm indication irrespective of the presence or absence of anodic surface contaminants. NOTE asfm of the tests may produce positive indications not associated with the presence of free iron on the stainless steel surface. These ASTM-approved tests may include: 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.
Determination of the suitability of this speci?
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Electropolishing and Passivation Standards.
ASTM A – 05 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Practice A—Water Immersion Test Rejection and Retest Last previous edition approved in as A — 01e1.
Practice F—Free Iron Test The test solution shall be mixed fresh on the day of the test. 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?