The ASTM A passivation standard ensures high quality results for passivated stainless steel. Learn how Able Electropolishing meets these standards. 35A, AMS C, ASTM A and ASTM A standards. Passivation alone will not remove heavy adherent oxide films created from heat treatment. Delstar Metal Finishing offers passivation services that meet the ASTM (American Society for Testing and Materials) A standards. The ASTM A standards.
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The ASTM A passivation standard applies to the cleaning, passivation and testing of stainless steel parts.
I assume that A was developed running several extreme conditions but I’ve been looking for that information and couldn’t find anything about it. Passivation is one of the most popular forms of metal finishing along atsm electro and electroless plating and industrial powder coating. Request a Quote Request Info.
ASTM A – 01 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts
If so, how could I support that statement? Copper sulfate testing Damp Cloth Test High humidity testing Potassium Ferricyanide—Nitric Acid Test Salt spray testing Water immersion testing Astmm instructions for conducting such tests as well as the acceptable results are also provided. The “right” spec is the one that your customer requires. The approach involves several steps.
ASTM A Standard Passivation Treatment For Stainless Steel
Have the plater do so, and then certify to multiple standards. Is this a correct assessment?
This abstract is a brief summary of the referenced standard. To me this means volume percent of pure nitric acid, resulting in significantly stronger passivation solutions than AMS Jan, Both standards are based heavily on the old QQ-P I replied that the parameters are in compliance with standard A but he’s telling that we don’t have objective evidence to support the validation since A defines minimum requirements that could a976 insufficient to my process.
If you’re having it asrm for you, the testing is someone else’s problem, so you might consider AMS All The specifications are the same, then why are the Names different?
ASTM A967 vs. AMS 2700? Which is the right passivation spec?
We design our own parts, and do our own passivation in house, and hence prefer the testing requirements of ASTM A These tests include the following practices:.
Combining values from the two systems may result in non-conformance with the standard.
Lee Kremer has pointed out that A is not a Specification, only a Practice. I am struggling to understand which spec to use for passivation. These ASTM-approved tests may include: The intent is to remove any foreign or undesirable axtm and improve the corrosion resistance of the stainless steel component.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
ASTM A967 Passivation Standard
Some customers ask for the parts to pass salt spray testing longer than A’s required 2 hours, etc. Chemical passivation has as its major goal to provide a layer of protection over the base metal.
These tests include the following practices: This is actually an oversight of A that will be corrected in the next revision.
The standards of ASTM A provide specific details of the acceptable methods required for passivating stainless steel. Especially in the atm industry I have seen it is difficult to source a specific product according to a specific type within these standards.
Plating Specifications Download Register. And there are other differences. Also, how common is it for z967 purchaser of a good to specify a specific passivation type in a standard rather than reference the entire standard and leave the type selection up to the manufacturer?
Regards, Ted Mooney, P. In reading through the specification I believe the drawing is incorrect.
It includes aa967 alternative tests, with acceptance criteria, for confirmation of effectiveness of such treatments for stainless steel parts. Various organizations and groups present specifications for the processes involved in metal finishing treatments.