Designation: A – 05e1 ASTM Standards: 2 1 This specification is under the jurisdiction of ASTM Committee A01 on Steel. The ASTM A passivation standard ensures high quality results for passivated stainless steel. Learn how Able Electropolishing meets these standards. ASTM A – Designation: A – 05 Standard Speci?cation for Chemical Passivation Treatment.
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The cloth shall be in contact with the steel for an area of at least 20 square inches cm2. It includes several alternative tests, with acceptance criteria, for con? A — 05 Standard Speci? The cloth pad used shall be used for only one such test, being changed for each test so as to avoid risk of contamination. 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.
Such treatments may include externally applying an electrical potential on the stainless steel parts, as in the case of electropolishing.
It includes recommendations and precautions for descaling, cleaning, and passivation of stainless steel parts. QQ-PC, but also includes a number of alternative passivation treatments.
These tests include the following practices: NOTE 1—The selection of medium and procedures for a neutralization depends of the chemistry asrm the passivation and on economic considerations. Last previous edition approved in as A — a967-50.
ASTM A – 05 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts
An example of a medium that serves to accelerate the formation of the passive? Such records shall be available for inspection when speci? The standards that collectively make up the ASTM A passivation specification ensure awtm nitric and citric stainless steel passivation is performed properly and with quality results.
Determination of the suitability of this speci? The parts shall then be thoroughly dried. Precision and Bias Precision Machining Technology Show. At the end of this period, the surface shall be carefully rinsed and dried with a967-0 taken not to disturb copper deposits if present. These particles must be removed or they will appear as rust or stain spots. Active view current version of standard. Lot, Frequency of Testing, and Selection of Test Electropolishing and Passivation Standards.
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ASTM A967 Passivation Standard
The ASTM A passivation standard applies to the cleaning, passivation and testing of stainless steel parts. Stainless steel passivation performed to the ASTM A standards meets these standards by passing tests that confirm its effectiveness, particularly as it pertains adtm removing free iron from the cold-worked surfaces.
The surface of stainless steel astk from these treatments is free of scale, free iron, and exogenous foreign matter, and does not require a separate treatment for passivation as de?
Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Gain access to the technologies and people in aerospace and defense manufacturing. Rinsing can be accomplished by a combination of stagnant, countercurrent or spray rinses, or both, prior to?
The processor is not required to wstm the precise composition of proprietary chemical mixtures but shall maintain a unique identi?
A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
The ASTM provides instructions and acceptance criteria for these and other tests that can verify the quality of a stainless steel passivation operation. The effectiveness of a particular treatment for a particular grade of stainless steel in a particular application is demonstrated by meeting the speci?
After removal of the cloth pad, the surface of the part shall be allowed to dry a967-5 air before inspection. Treatments in Citric Acid 7. Originally approved in This cycle shall be repeated a minimum of twelve times.
NOTE 2—Some of the tests may produce positive indications not associated with the presence of free iron on the stainless steel surface. When electrochemical cleaning is required, it shall be performed in accordance with Practice B These tests include the following practices: Practice B—High Humidity Test This standard does not purport to address all of the safety concerns, if any, associated with its use.