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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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Please login to your authorized staff account to use this feature. Enter your personal account email address to request a password reset: Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements. Register for a trial account. b9221

Link to Active This link will always route to the current Active version of the standard. Anoplate maintains an extensive list of corporate approvals and certifications. ASTM does b91 give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. I have just checked today with several chem. Print 1 2 3 4 5 page sstarting from page current page. Enter your account email address to request a password reset: 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.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

AnoChem TCP is an excellent solution for the following applications: 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 vendor’s statement. Copyright Compu-tecture, Inc. 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.

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Many plating shops want to switch to TCP, so I think it will be ever harder for you to continue to make your parts look like they are carcinogenic when they are not: If you like to setup a quick demo, let us know at support madcad. Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements.

ASTM-B, –

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. 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 the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory requirements prior to use.

FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. Can you define “TCP”.

AnoChem TCP

The color produced is not homogenous as you would expect from a dye, but is useful for an inspection aid. Also, is there a way to determine if the finish truly exists. None add yellow to their product.

Coatings are categorized into four classes according to corrosion protection and finish. Remember me for one month. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM B921 – 08(2018)

Both impart a clearly visible blue color to the trivalent chromate conversion coating and do not asym salt spray testing hours. Land Use and Development. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. This may be what your vendors have switched to.

Non Hexavalent Chromium Conversion (Clear)

We work in partnership with some of the largest and most respected names in industry. It is clear, very thin, and cannot be dyed. Historical Version s – view previous versions of standard. AnoChem TCP should be applied where conductivity, paintability or corrosion resistance are required on aluminum substrates. 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.

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This abstract is a brief summary of the referenced standard. Sorry, I don’t have a copy of ASTM B handy so I cannot interpret what it says, and what finishes might comply with it, and whether they can be dyed yellow. From beautiful Pine Beach New Jersey: 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. But the fact is that the traditional yellow color was never a dye; it was the inherent color of the hexavalent chromium toxin. They have notified us that due to environmental concerns that they will no longer use the gold tint. This process is almost colorless and cannot be dyed. 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. Are you sure you want to empty the cart? 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.