Mildtl5541f chemical conversion coatings on aluminum and. Mildtl81706 milc5541 class 3 rohs thermalloy milc5541 astm b 117 citizen aavid thermalloy c554 aavid catalog text. Two classes of coatings are available under milc5541 and milc81706. Milc5541, class 1a or 3 class 1a is applied for improving the adhesion of coatings andor as the best resistance to corrosion.
Another important quality is the ability to heal small scratches due to being soluble. These chemical films are intended as a corrosionpreventive film for aluminum and aluminum alloys. This was formerly known as milc5541 and is another of our alltime bestselling plating specs. Milc5541 class 3 mildtl5541 type i class 3 ams2474 astm b44993 class 3 7. Qpl81706 20161103 qualified product list of products qualified under performance specification mildtl81706 chemical conversion materials for. The current specification 2009 is mil dtl5541f, which superseded mil c 5541e in july 2006. Milc5541 1 march 28, 1950 chemical conversion coatings on aluminum and aluminum alloys a description is not available for this item. To find similar documents by federal supply class code. Chemical conversion coating mildtl5541 aluminum coatings. Chemical conversion coatings on aluminum plating per mildtl5541 and milc5541 conversion coatings for aluminum meets requirements of military specifications mildtl5541 specifications aluminum alloys and coatings benefit from additional protective features of conversion coatings. Anodizing is an electrochemical process used to increase the thickness of the natural oxide layer on the surface of aluminum parts. Because class 3 coatings are thinner they are more susceptible to corrosion than class 1a. Chemical conversion coatings on aluminum plating per mildtl5541 and mil c 5541 conversion coatings for aluminum meets requirements of military specifications mildtl5541 specifications aluminum alloys and coatings benefit from additional protective features of conversion coatings. The test method, frequency of testing, and required resistance values shall be specified by the acquisition activity to meet the needs of.
Dtl81706, class 3, for protection against corrosion where low electrical resistance is required. Class 3 chemical conversion coatings provide a corrosion preventive film for electrical and electronic applications where lower resistant contacts, relative to class 1a coatings, and anodic coatings in accordance with mila8625, are required. A discussion started in 2004 but continuing through 2017. Excellent hardness rc6874, wear resistance, and erosion resistance. Class 3 chemical conversion coatings are intended for use as a corrosion preventive film for electrical and electronic applications where lower resistant contacts, relative to class 1a coatings, and anodic coatings in accordance with mila8625, are required see 6. Industraplate corporation is proud to offer this environmentally friendly process in keeping with global innovation to help provide better and safer alternatives. Electroless nickel plating is an process that codeposits a nickelphosphorous alloy without need for. Milc5541 class 1a provides the heaviest coating, while class 3 is a lighter variation. The test method, frequency of testing, and required resistance values shall be specified by the acquisition activity to meet the needs of a particular application see 6.
Mil c 5541 astme1417 nadcap certified continental heat treating, inc. Our facility houses large rack tanks capable of immersing parts up to 24. Entire process of rohscompliant chemical conversion process. Commander, naval air warfare center aircraft division, code 414100b1201, highway 547, lakehurst. Milc5541 class 3 rohs datasheet, cross reference, circuit and application notes in pdf format. Aluminum plating per mildtl83488 and milc83488 high purity aluminum exceeds corrosion requirements of mildtl83488. Mildtl5541 chemical conversion coatings on aluminum. An nsn, although displayed or written as a continuous string of digits, consists of two separate components the fsc and niin.
Class 3 colorless, decorative, slight corrosion resistance, low electrical contact resistance class 4 light green to green, moderate corrosion resistance, used as a paint base and for bonding to rubber not done at ast electrical resistance class 3 coatings class 3. A discussion started in 2000 but continuing through 2019. Chemical films alodine we have a hoist line and large part capacity. Iridite chromate conversion coating finish milc5541. Fsc standardization area mffp metal finishes and finishing processes and procedures this document comes with our free notification service, good for the life of the document. Electrical contact resistance testing shall be as specified in the contract or order see 6.
Touchnprep alodine pen implementation at boeing st. A spec or slash sheet identifies a specific piece or section of a general specification or standard. Although mildtl5541 has been superseded by more recent specifications, it still remains a specification approved by all agencies and departments in the us department of. Mil mildtl5541f chemical conversion coatings on aluminum and aluminum alloys superseding milc5541e standard by military specifications and standards, 07112006 amendments available view all product details. Pure aluminum plating per mildtl83488 ivd aluminum. January 9, 1950 chemical conversion coatings on aluminum and aluminum alloys a. The military specification referred to as mil dtl 5541, military specification, chemical conversion coatings on aluminum and aluminum alloys covers chemical conversion coatings formed by the reaction of chemical conversion materials with the surfaces of aluminum and aluminum alloys. Henkel alodine 1200s conversion coating mildtl81706. A national stock number nsn is a thirteen digit number uniquely identifying a single government part designation. Class 3 clear finish what is the difference between gold iridite and clear iridite in terms of process. Specification mildtl81706b qualifies products for use in.
Chemical conversion coating mildtl5541 type 2, class 1a hexavalent free chrome. Milc5541 covers the requirements for chemical conversion coatings formed by the. Mildtl5541 chemical conversion coatings on aluminum and aluminum alloys. Meets electrical conductivity requirements per milc 5541 class 3. Class 1a for maximum protection against corrosion, painted or unpainted. Class 3 is used as a corrosion preventive film for electrical and electronic applications, where low resistance contacts are required. For protection against corrosion where low electrical resistance is required. Electroless nickel plating per milc26074, astm b733 and ams 2404. Gold chemical conversion coating per mildtl5541f type ii class 3 gold chemical conversion coating per mildtl5541f type ii class 3 kenat mechanical op 12 aug 08 20. This is created through the chemical conversion substance reaction with aluminum and its alloys. Temukan segala yang ditawarkan scribd, termasuk buku dan buku audio dari penerbitpenerbit terkemuka. Mildtl5541 type ii, class 1a and class 3 rohs compliant astm b921 class 1a and class 3 rohs compliant we are an approved supplier for. Class 3 for protection against corrosion where low electrical resistance is required. Iridite chromate conversion coating finish milc5541 specification.
Class 3 is applied if improved electrical conduction is required. Milc5541 link is to free spec at defense logistics agency, dla. Electroless nickel plating per milc26074, astm b733, ams. Mildtl5541 is a military specification related to conversion coatings. Milc5541 mildtl5541 type i yellow type ii clear ams2473 astm b449 7. Clam 2 coatings shal1 have a ndninum hardness of 700. Chromating chromate conversion coating surface treatment. Sponsored links speed downloads mil c 5541 trusted download 1500 kbs 10 310 mil c 5541 highspeed download 1200 kbs 5 945 mil c 5541 full download kbs 1 290 68 p misc accy mila8625, type ii, class 2. The class 3 may appear slightly lighter in color due to the difference in film thickness. The primary difference between a class 1a and class 3 coating is.
Arkwin special process suppliers list 4 th q 17 1st fq 18 asl approved supplier list page 2 of 16 special process supplier list supplier process applicable specs. Chemical conversion coating mildtl5541 type 2, class 1a. Chemical covesion coatings for aluminum industraplate. Industrial finishing services industrial finishing types menu. Typical contact resistance of class 3 aluminum chromate conversion coatings is less than 5,000 microhms per square inch as applied. Milc5541 class 1a, for maximum protection against corrosion, painted or unpainted.
Sponsored links speed downloads mil c 5541 trusted download 1500 kbs 10 310 mil c 5541 highspeed download 1200 kbs 5 945 mil c 5541 full download kbs 1 290 wps4cf2. Aluminum chromate conversion coating advanced plating. Milc5541, class i a, 3 mildtl5541 type i, ii class ia, 3 ams 2473 type i, class. Military specification this specification ie approved for. Ace anodizings expert chromate conversion services are highly automated, which gives us the ability to deliver fast turnarounds that meet your demanding production scheduling needs. Mildtl5541f chemical conversion coatings on aluminum. Iridite milc5541 mildtl5541 class 3 ams2474 astm b449 class 3 7.
Chromate leaves no measurable buildup, but provides excellent corrosion resistance. Zyci plating specifications general information page 9 reference only april 2018 chrome qqc320 a coating for ferrous metals. Certificates approvals nadcap, airbus, boeing, bombardier, lockheed martin, mcdonnell douglas, stork fokker. This document is available in either paper or pdf format. The process is called anodizing because the part to be treated forms the anode electrode of an electrical circuit. These coatings can modify the surface of the aluminum material for improved corrosion resistance, electrical. For maximum protection against corrosion, painted or unpainted. Class 3 colorless, decorative, slight corrosion resistance, low electrical contact resistance class 4 light green to green, moderate corrosion resistance, used as a paint base and for bonding to rubber not done at ast electrical resistance class 3 coatings c 5541 class 3. Although the iridescent gold finish is very attractive, it is not as durable as an anodized finish. The electrical contact resistance of aluminum chromate conversion coatings is low, with class 3 coatings per milc5541 being the lowest. Mil c 5541 link is to free spec at defense logistics agency, dla. Comments, suggestions, or questions on this document should be addressed to.
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