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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ASTM A967 Passivation Standard

Originally approved in Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Practice F—Free Iron Test A rejected lot may, at the option of the processor, be re-passivated, with or without re-pretreatment, and then be retested.

Such treatments may include externally applying an electrical potential on the stainless steel parts, as in ast, case of electropolishing. After removal of the cloth pad, the surface of the part shall be allowed to dry in air before inspection. The cleaning of these contaminants from the stainless steel surface will facilitate the spontaneous passivation by allowing the oxygen uniform access to q967-05 surface. A — 05 Standard Speci?

The presence of exogenous surface contamination, including dirt, grease, free iron from contact with steel tooling, and so forth, may interfere with the adtm of the passive? The suitability of such passivation treatments for use in 3 meeting the requirements of this speci?

The cloth pad w967-05 shall be used for only one such test, being changed for each test so as to avoid risk of contamination. FebAnaheim, CA. An example of a medium that serves to accelerate the formation of the passive?

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. An example would be application of Practice C on some lesser-alloyed martensitic or ferritic stainless steels.

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These tests include the following practices:. 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? 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?

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Lot, Frequency of Testing, and Selection of Test Such records shall be available for inspection when speci?

These tests include the following practices: This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Immersion bath to be controlled at a pH of 1. w967-05

ASTM A Passivation Standards | Passivated Stainless Steel Parts

May 15 — 16, Boston, MA. QQ-PC, but also includes a number of alternative passivation treatments.

Cleaning by mechanical methods or other chemical methods is recommended. These ASTM-approved tests may include: The formation of a dark blue color within 30 a967–05 denotes the presence of metallic iron. Such treatments, also sometimes called passivation in common usage, are designated as post-cleaning treatments in this speci?

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. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Chemical passivation removes free iron and other surface contaminants from stainless steel parts, improving corrosion resistance.

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 other alloys.

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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Stainless steel passivation performed to the ASTM A standards meets these standards by passing tests asttm confirm its effectiveness, particularly qstm it pertains to removing free iron from the cold-worked surfaces. This standard does not purport to address all of the safety concerns, if any, associated with its use.

This cycle shall be repeated a minimum of twelve times. 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. Electropolishing and Passivation Standards.

By meeting standards w967-05 by the ASTM and other organizations, we can ensure consistently-high quality for a broad range of metal parts across many industries. Current edition approved Sept. The processor is not required to reveal the precise composition of proprietary chemical mixtures but shall maintain a unique identi?

These ASTM-approved tests may include:. The cloth shall be in contact with the steel for an area of at least 20 square inches cm2. It makes no recommendations regarding the suitability of a967-005 grade, treatment, or acceptance criteria for any particular application or class of applications.

AeroDef April 30 – May 1 Gain access to the technologies and people in aerospace and defense manufacturing. 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 atm use. 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?