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 · ASTM B Subjects. Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products (ASTM VOL ).
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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? 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. Link to Active This link will always route to the current Active version of the standard. All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer.
AnoChem TCP left has a clear, bright finish with a blue iridescence and should not be mistaken that the part is asttm. Anoplate will be closed December 24th, 25th, 31st and January 1st. This abstract is a brief summary of the referenced standard. Remember me for one month. Anoplate, maintains its own inhouse salt-spray test chamber and its own electric resistivity astk equipment.
Both impart a clearly visible blue color to the trivalent chromate conversion coating and do not reduce salt spray testing hours.
ASTM B921 – 08(2018)
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Search book title Enter keywords for book title search. They have notified us that due to environmental concerns that they will no longer use the gold tint. 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.
Copyright Compu-tecture, Inc. This is the only non-hex process that meets the MIL spec, and so I suspect that your vendor switched to this, and I have no reason to question your qstm statement. Historical Version s – view previous versions of standard. Many plating shops want to switch to TCP, so I think it will be zstm harder for you to continue to make your b9921 look like they are carcinogenic when they are not: 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.
I have just checked today with several chem. Thanks for the response. Traditional hexavalent chromium right has its characteristic gold iridescence. 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. Enter your personal account email address to request a ast reset: Please login to your authorized staff account to use this feature.
There were no books found for the applied search filters. We work in partnership with some of the largest and most respected names in industry. It is informational only and not an official part of the standard; the bb921 text of the standard itself must be referred to for its use and application.
If you like to setup a quick demo, let us know at support madcad. Also, is there a way to determine if the aastm truly exists. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.
Non Hexavalent Chromium Conversion (Clear)
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b21 From beautiful Pine Beach New Jersey: Coatings are categorized into four classes according to corrosion protection and finish. It is a trivalent chromium conversion process. Enter your account email asttm to request b291 password reset: None add yellow to their product. 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. Anoplate maintains an extensive list of corporate approvals and certifications.
Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements. Print 1 2 3 4 5 page sstarting from page current page. AnoChem TCP should be applied where conductivity, paintability or corrosion resistance are required on aluminum substrates. 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, aastm adhesives; and as.
It is clear, very thin, and cannot be dyed. Regards, Ted Mooney, P. This may be what your vendors have switched to. AnoChem TCP is an excellent solution for the following applications:.
Non Hexavalent Chromium Conversion (Clear)
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 to use. This abstract is a brief summary of the referenced standard. 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 satm for Class 3 applications.