Advanced Plating Technologies, a Milwaukee, Wisconsin company, is an industry leading provider of passivation of stainless steel to ASTM A, AMS AMS-QQ-P QQ-P Passivation of Corrosion Resistant Steels. RATIONALE. AMSE is issued to incorporate all changes approved by AMS Committee. ASTM F86 for Orthopedic implants, AMS for aerospace, ASTM A It is relatively easy to modify a passivation process to satisfy ASTM A [link is to.

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But our favorite choice would be Type 8. All The specifications are the same, then why are the Names different? Gain access to the technologies and people in aerospace and defense manufacturing. ASTM F86 [link by ed.

AMS 2700 Passivation Standard

What is standard to you may not be standard to them. Especially in the fastener industry I have seen it is difficult to source a specific product according to a specific type within these standards. A renumbers those to 1 through 4 there is no such thing as A Type 6 or 7 while restores the missing four for a total of eight Types. November 27, — this entry appended to this thread by editor in lieu of spawning a duplicative thread A.

If allowed to remain, the iron particles provide corrosion sites that will ultimately result in accelerated corrosion of the product.

AMS Passivation Standards | Corrosion Resistance Improvement

If the part passivatjon the verification test, what differences in function can occur in the part’s use if differing acid baths are used? A discussion started in but continuing through Q. I was looking at this thread and had this question But if it’s a medical instrument or implant, then you’re also going to have to show the appropriate tribute to an F standard.

AMS passovation C from testing. Specifically, this standard refers to the requirements for removing surface contaminants like free iron from the surface of corrosion-resistant steel parts. We appended your question to a thread which should clearly answer it for you: All information presented is for general reference passivatiin does not represent a professional opinion nor the policy of an author’s employer. You used a gmail e-mail address and haven’t supplied company or industry information, so I don’t know if your company must comply with this spec or you are the author of the job requirements.


Created with Webvanta CMS. What should I tell my customer? In reading ASTM A and AMS it seems that there is quite a bit of overlap but with differences in the bath variables or verification requirements. The passivation process consists of immersing the stainless steel in a solution of citric acid, or other acid plus oxidizing salts, which dissolves the embedded or deposited iron and restores the original corrosion-resistant surface a thin, transparent oxide film.

Indeed also my conclusion is that it is an omission. In simple terms, he’s saying that given 2 SS surfaces which have different concentrations of free iron, the chemical reaction will take longer in the surface with more free iron. Ray Kremer Stellar Solutions, Inc. Do you have any experience in passivating parts unlike in the AMS suggestions? If you do not specify, they can use whatever they want, even ways that are not in any of the specifications! The AMS passivation specification pertains to metal passivation services like those performed at Able Electropolishing.

December 19, A.


Is there any clear direction or is it optional? Based on the previous information, the concern is regarding the minimum requirements in A If you’re having it done for you, the testing is someone else’s problem, so you might consider AMS This auditor you are dealing with, what organization is he with? The 3 consensus specifications used at this time, and that should be used for all specifications of passivation are:. John Wilt [returning] – Cambridge, Massachusetts. Our services remove free iron and other contaminants on the surface of stainless steel parts, creating a passive surface with increased corrosion resistance.


AMS Method 1 Type II Passivation for Medical Device

It was cancelled in early in favor of AMS As a global organization of engineers and other technical experts, SAE International provides consensus-formed standards that help define the best practices for processing aerospace, automotive and commercial vehicle components—including passivaton passivation services.

From beautiful Pine Beach New Jersey: My customer wants to put A on his print for standard passivation, but my plater tells me that he passivates to A There are other differences- ASTM A allows the use of any mix of nitric and water, so long as you show it works Nitric 5 solution. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. Ray Kremer Stellar Solutions, Inc.

Can you please tell me the differences between the 270 processes AMS [link by ed. AMS considers different parts, or the same part made at different times, to be different lots with the exception for parts with the legacy QQ-P called out, when you can use the older definition.

Passivation restores the corrosion resistance of stainless steel parts. And there are other passsivation. Some customers ask for the parts to pass salt spray testing longer than A’s required 2 hours, etc. To me this means volume percent of pure nitric acid, resulting in significantly stronger passivation solutions than AMS I persuaded my Supervisor to at least try the citric solution for the 1.

This has been a hit and miss for us with the different companies.