ASTM B921 PDF

Find the most up-to-date version of ASTM B at Engineering Standard Specification for Non-hexavalent Chromium Conversion Coatings on Aluminum and Aluminum Alloys. Active Standard ASTM B | Developed by. Start. Standard ASTM standard ยท ASTM B Subjects. Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products (ASTM VOL ).

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This specification covers the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminum and aluminum alloys intended to retard corrosion; as a base for organic films including paints, plastics, and adhesives; and as. Search book title Enter keywords for book title search. Please login to your authorized staff account to use this feature. Land Use and Development. Enter your account email address to request a password reset: I don’t think you need to give up on ASTM compliance, but should consider getting away from the gold colored dye.

AnoChem TCP

The color produced is not homogenous as you would expect from a dye, but is useful for an inspection aid. The type of conversion coating depends on the composition of the solution and may also be affected by pH, temperature, duration of the treatment, and the nature and surface condition.

We have complaints from both the DoD and the FAA that their inspectors cannot tell if the Non-hex chromate clear conversion coating is on the metal or not. Anoplate, maintains its own inhouse salt-spray test chamber and its own electric resistivity test equipment. Register for a trial account. Abstract This specification covers the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminum and aluminum alloys intended to retard corrosion; as a base for organic films including paints, plastics, and adhesives; and as.

Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

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AnoChem TCP left has a clear, bright finish with a blue iridescence and should not be mistaken that the part is untreated. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior asgm use.

ASTM-B, –

My question is, would they be eliminating the gold tint strictly due to environmental concerns or as an easy differentiation between finishes and will the finish still be in compliance with ASTM B? Click here to download full list of books. Many plating shops want to switch to TCP, so I think it will be ever harder for you to continue b9921 make your parts look like they are carcinogenic when they are not: I have just checked today with several chem.

Regards, Ted Mooney, P. These, in conjunction with its superior cleaning process and statistical process control, have given Anoplate the edge with optimizing and being able to certify its AnoChem TCP coating for Class 3 bb921.

AnoChem TCP replaces hexavalent chromate conversion coatings used for aluminum alloys without sacrificing corrosion resistance, electrical contact resistance or organic topcoat adhesion properties while meeting regulatory requirements of ROHS, WEEE and ELV legislation. Are you sure you want to empty the cart?

Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Non Hexavalent Chromium Conversion (Clear)

Can you define “TCP”. This may be what your vendors have switched to. None add yellow to their product. AnoChem TCP is an excellent solution for the following applications:. We work in b291 with some of the largest and most respected names in industry. There were no books found for asmt applied search filters. Both impart a clearly visible blue color to the trivalent chromate conversion coating and do not reduce salt spray testing hours.

Link to Active This link will always route to the current Active version of the standard. It is the responsibility of b9221 user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory requirements prior to use.

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FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. As your partner in the supply chain, our commitment to quality and professional service assures you that you have chosen the right supplier for your metal finishing needs.

It is a trivalent chromium conversion process. This abstract is a brief summary of asfm referenced standard. Copyright Compu-tecture, Inc.

Films are normally applied by dipping, but may also be applied by inundation, spraying, roller coating, or by wipe-on techniques. It is clear, very thin, and cannot be dyed. Referenced Documents purchase separately The documents listed asrm are referenced within the subject standard but are not provided as part of the standard.

This specification covers the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminum and aluminum alloys intended to retard corrosion; as a base for organic films including paints, plastics, and adhesives; and as. If you like to setup a quick demo, let us qstm at support madcad. Coatings are categorized into four classes according to corrosion protection and finish. Coatings are categorized into four classes according to corrosion protection b9921 finish.

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. This is the only non-hex process asmt meets the MIL spec, and so I suspect that your vendor switched to this, and I have no reason to question your vendor’s statement.

Maybe somebody can add a UV trace to the coating similar to parylene conformal coating–there is a UV trace added. From beautiful Pine Beach New Jersey: