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Specs for Black Anodizing of 6061-T6 Aluminum
2005
We require a Black Hardtuf X20 Anodize finish per
MIL-A-63576 A (or equivalent) on some of our parts. Can you tell me if
MIL-A-8625 / MIL-PRF-8625
[⇦ this spec on DLA]F is equivalent to this finish?
Nelson Conchinha
medical device manufacturer - New Bedford, Massachusetts
Ed. note: This RFQ is outdated, but technical replies are welcome, and readers are encouraged to post their own RFQs. But no public commercial suggestions please ( huh? why?).
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2005
Black Hardtuf X20 is a proprietary process that would take place AFTER the parts are Hard Anodized.
The specification 63576 is a teflon/anodize coating spec.
I would venture to say that any good anodizer should have a copy of this standard.
The "Hardtuf x20" on the other hand may be difficult to locate.
Bill Grayson
metal finishing - San Jose, California
MIL-A-63576A specifies a hardcoat per MIL-A-8625 (Type III, Class 1) *Emphasis on Type and Class* with an additional PTFE post treatment. So no, they are not equivalent. Companies who supply coatings to this specification, using a variety of trade names, use different techniques and methods to apply the PTFE post treatments. So Luke Engineering's product, Lukon 24, and others may not be exactly equivalent either.
Chris Jurey, Past-President IHAA
Luke Engineering & Mfg. Co. Inc.
Wadsworth, Ohio
2005
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