Alodine 1200 methods and properties are defined by mildtl5541f formerly. We have 1 national instruments ni 6723 manual available for free pdf download. This is a relatively thick film used as a final finish or pretreatment to paint or powder coating, and it is typically gold, brown, or yellow depending on coating weight and alloy. Fsc standardization area mffp metal finishes and finishing processes and procedures this document comes with our free notification service, good for the life of. Mildtl5541f chemical conversion coatings on aluminum and. Meets electrical conductivity requirements per milc 5541 class 3. As established by mildtl5541, both class 1a and class 3 refer to coatings that offer increased corrosion resistance and adhesive properties.
Mildtl5541 chemical conversion coatings on aluminum and aluminum alloys this specification covers chemical conversion coatings formed by the reaction of chemical conversion materials with the. Mildtl5541 chemical conversion coatings on aluminum and aluminum alloys. Military specification this specification ie approved for we. Difference between milc5541 class 1a and mildtl5541. The show visits various cities and neighborhoods in wisconsin and tours businesses and other historical landmarks. Class 3 will result in a thinner deposit, thus less resistant to corrosion than class 1a. Class 1a chemical conversion coatings are intended to. Military specification anodizing mila8625 saf southern. But you have to download the spec i dont think you can inspect without it. Milc81706 and been accepted for listing on the applicable qualified. The mess can be achieved by heating the t per the schedule given in 6.
The current specification 2009 is mildtl5541f, which superseded milc5541e in july 2006. The military specification referred to as mildtl5541, 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. If the class is not specified, i would go with class 1a. Mil c 5541 link is to free spec at defense logistics agency, dla. Milc5541 class 3 receives contact resistance testing. Mildtl5541 chemical conversion coatings on aluminum. Milc5541, class i a, 3 mildtl5541 type i, ii class ia, 3 ams 2473. Type ii compositions containing no hexavalent chromium.
Pim master passive intermodulation analyzer with site. Type 1 this includes all coatings that have hexavalent chromium. Clam 2 coatings shal1 have a ndninum hardness of 700 vickers or equivalent. Aluminum alloys, heattreatable, processed to improve adhesion of deposit. Provides maximum protection against corrosion, whether painted or unpainted.
Available masking for selective surface chem filming salt spray corrosion test minimum 168 hours of salt spray resistance. Milc5541 class 1a indicates maximum corrosion resistance and a more stringent corrosion test is specified. Class 1a chemical conversion coatings are intended to provide corrosion prevention. For mildtl5541, it is very clear when type ii is mentioned, the conversion coating shall not contain hexavalent chrome, hence, rohs compliant. Clear chromate rohs compliant mil c 5541 type i, class 1a mil dtl 5541 astm b449 ams 2473 mil std 171 finish no.
Class 3 clear or yellow for protection against corrosion where low electrical resistance is required. Iridite, alodine mil c 5541 class 3 mil dtl 5541 type i class 3 ams2474 astm b44993 class 3 7. This document is available in either paper or pdf format. Pearson, toronto yyz 3 dl 5541 nonstop canadair crj 900 cr9 2. Electrolurgy performs chem film to mildtl5541 for aerospace and general industry in irvine, ca. Click here to download deoxidine material safety data sheet msds click here to download alodine 1201 material safety data sheet msds. I need to know when to use type i and not to use type i finish. Class 3 however, also maintains electrical conductivity. 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. Coatings shall be continuous free from powdery areas, breaks, scratches, etc. Application tectyl 502c, class i is formulated to be used as supplied. The trivalent chromium process tcp provides a non hexavalent chrome coating compliant with rohs, elv and weee directives. Military specification this specification ie approved for.
National instruments ni 6723 manuals manuals and user guides for national instruments ni 6723. Chemical nickel milc26074 cancelled, but still used see ams and astm ams2404 ams2405 astm b733 1. In the haymarket square episode, apt was selected to. Thermal treatment for adhesion improvement on ferrous alloys. Mil c 5541 did not mention type i or ii whereas mil dtl 5541 link is to free spec at defense logistics agency, dla. Credit card processors, however, are the ones responsible for assigning. Alocrom 1200 def stan 0318 milc5541 class 1 alocrom 100 dtd 9004091 stoving paints for aluminium def stan 8025 stoving paints general service def stan 8048 air drying finishes def stan 8050 full gloss stoving finishes def stan 8051.
Class 1a yellow for maximum protection against corrosion, painted or unpainted. It is also a thermochemical technique that primarily involves saturating by diffusion of ironrich alloys with an element called chromium. Daubert chemical company recommends that the metal substrate temperature be 5095f 1035c at the time of product application. Class 3 for protection against corrosion where low electrical resistance is required. Chem film chromate conversion coatings electrolurgy.
Part number aa59474typeii class 2 including related part numbers and nsn. Coated nonheattreatable aluminum parts shal1 be heated for 1 to 1 12 hours at 375% l 15% 191c ec to irove esion of nickel. 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 mil a8625, type ii, class 2. Milc5541 did not mention type i or ii whereas mildtl5541 link is to free spec at defense logistics agency, dla. It shall be free from areas of powdery or loose coating, voids. Even after 168 hours of salt spray testing, class 3 coatings must exhibit electrical resistance at no greater than 10,000 microhms per square inch. For mil dtl 5541, it is very clear when type ii is mentioned, the conversion coating shall not contain hexavalent chrome, hence, rohs compliant. These 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. Available masking for selective surface chem filming salt spray corrosion test. Class 1a for maximum protection against corrosion, painted or unpainted. Pearson, toronto yyz 3 dl 5541 nonstop canadair crj. Coating thickness is varied by immersion time, and as a result, the same conversion. Aluminum alloys nonheattreatable, processed to improve adhesion of deposit.
Milc5541, class 3 over qqp416, type ii, class 3 over. Milc5541 link is to free spec at defense logistics agency, dla. Milc5541, class i a, 3 mildtl5541 type i, ii class ia, 3 ams 2473 type i, class ia coating yellow in appearance maximum corrosion resistance type i, class 3 coating clear or yellow in appearance type ii, class 3 coating clear rohs compliant conductive coating excellent base or primer for painting. At the end of 168 hours of exposure to the 5 percent salt spray test specified in 4. Operating temperature 10 c to 55 c storage temperature 51 c to 71 c maximum relative humidity 95 %, noncondensing ingress protection ip ip54, ip67 when enclosed in optional transit case mechanical shock milprf28800f class 2, 30g halfsine, 6 shocks each axis, while operating. Industraplate corporation is proud to offer this environmentally friendly process in keeping with global innovation to help provide better and safer alternatives.
In response to your question of when each type and class should be used, i would assume that since the customer is using a detail spec, they would also specify the class and type. It is not intended as a general purpose coating for commercial and decorative applications. Advanced plating technologies was recently featured on the popular tv show, around the corner with john mcgivern. Mil dtl 5541 covers all chemical conversion coatings which are known to create protection through chemical reaction with metals like aluminum and aluminum alloy. Milc5541 coatings datasheet pdf conversion coatings. 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 mil a8625, are required. The codes, their meanings and classifcation are set by the international organization for standardization iso. One side of the part is to be processed per mil c 5541, class 1a, then primed. Mildtl5541 chemical conversion coatings on aluminum and. Chem film per mildtl5541 class 3 is electrically conductive. Mildtl5541 covers all chemical conversion coatings which are known to create protection through chemical reaction with metals like aluminum and aluminum alloy.
Chemical film coatings are gelatinous films which provide some sort of a barrier medium to retard corrosion on aluminum surfaces and enhance adhesion of subsequent coatings such as paints and primers. Electrolurgy performs chem film to mil dtl 5541 for aerospace and general industry in irvine, ca. The military specification referred to as mildtl5541, military specification, chemical. Chemical covesion coatings for aluminum industraplate. This kind of film usually looks brown or gold, but can be colorless at times. Merchant category codes mccs, or merchant classification codes, are a fourdigit identifier that describes the type of goods or services a business provides. Mil dtl5541f 11 july 2006 superseding mil c 5541e 30 november 1990 detail specification chemical conversion coatings on aluminum and aluminum alloys this specification is approved for use by all departments and agencies of the department of defense. Alodine milc5541 class 3 ams2474 astm b449 class 3 7. Jan 28, 2008 milc5541 did not mention type i or ii whereas mildtl5541 link is to free spec at defense logistics agency, dla.
Fsc standardization area mffp metal finishes and finishing processes and procedures. The best corrosion protection is provided by chem film per mildtl5541 class 1a. Iridite chromate conversion coating finish milc5541. The provisions of former section 901d are omitted as unnecessary because the sections referred to state their application and there is no need to restate the application here in paragraph 1, the terms executive agency and military department are substituted for the references in former section 901a and e to the executive. The opposite side is to be processed per milc5541, class 1a, clear. No class 1 explosive materials shall be loaded into or on or be unloaded from any motor vehicle with the engine running. Color can vary from colorless to golden iridescent brown. Milc5541 class 1a provides the heaviest coating, while class. Because class 3 coatings are thinner they are more susceptible to corrosion than class 1a coatings. Colony count technique at 30 degrees c this standard has been revised by iso 4832. This specification covers chemical conversion coatings formed by the reaction. Pim master passive intermodulation analyzer with site master. One side of the part is to be processed per milc5541, class 1a, then primed. Is there a white paper or guide out there that when and why type i really needs to be used i have a person at work that thinks that type ii is colorless and is using type.
Used as a postplating process, chemfilm provides an excellent paint adhesion and a superior base for bonding. To find similar documents by federal supply class code. We are nadcap certified, as9100 c and itar registered. In this process, an alloy is created through chromiums inward diffusion into a base metal.
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