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 tests include the following practices: Precision and Bias This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? A — 05 Standard Atsm
ASTM A – 05 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts
It makes no recommendations regarding the suitability of any grade, treatment, or acceptance criteria for any particular application or class of applications. Such records shall be available for inspection when speci? The ASTM A passivation standard applies to the cleaning, passivation and testing of stainless steel w967. Such treatments may include externally applying an electrical potential on the stainless steel parts, as in the case of electropolishing.
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 asrm, free astj, and exogenous foreign matter, and does not require a separate treatment for passivation as de? The effectiveness of any passivation treatment is demonstrated by the parts meeting the speci?
Statements regarding chemical treatments, unless otherwise speci?
Cleaning by mechanical methods or other chemical methods is recommended. Treatments in Nitric Acid Solutions 6. Determination of the suitability of this speci?
Practice B—High Humidity Test The suitability of such passivation treatments for use in 3 meeting the requirements of this speci?
June 11—13, Chicago, IL. The cleaning of these contaminants from the stainless steel surface will facilitate the spontaneous passivation by allowing the oxygen uniform access to the surface. These particles z967 be removed or they will appear as rust or stain spots. 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?
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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 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.
Able Electropolishing provides metal passivation services that meet the ASTM A standards, as qstm as other finishing treatments that improve the corrosion resistance of stainless steel and various other alloys. This standard does not purport to address all 9a67 the safety concerns, if any, associated with its use. Rejection and Retest The surface of stainless steel that has been pickled is free of scale, free iron, and exogenous foreign matter, and does not require a separate treatment for passivation as de?
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The cloth shall be in contact with the steel for an area of at least 20 square inches cm2. It is recommended for detection of free iron on austenitic and series stainless steels.
ASTM A Passivation Standards | Passivated Stainless Steel Parts
Gain access to the technologies and people in aerospace and defense manufacturing. Precision Machining Technology Show. Treatments in Citric Acid 7. A number in parentheses indicates the year of last reapproval. These tests include the following practices: The number of samples tested from a lot subject to retest shall be twice the original speci?
These ASTM-approved tests may include:. Appendix X1 gives some nonmandatory information and provides some general guidelines regarding the selection of passivation treatment appropriate to particular grades of stainless steel. It includes several alternative tests, with acceptance criteria, for confirmation of effectiveness of such treatments for stainless steel parts.
This cycle shall be repeated a minimum of twelve times. Originally approved in Not all of the following tests are suitable for ast, grades of stainless steel.
ASTM A967 Passivation Standard
After removal of the cloth pad, the surface of the part shall be allowed to dry in air before inspection. Active view current version of standard.
These tests include the following practices:. The processor is not required to reveal the precise composition of proprietary chemical mixtures but shall maintain a unique identi?
Asgm includes recommendations and precautions for descaling, cleaning, and passivation of stainless steel parts.
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. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may atm. FebAnaheim, CA.