Nov 14, 2016 mil dtl 5541 covers all chemical conversion coatings which are known to create protection through chemical reaction with metals like aluminum and aluminum alloy. Mil dtl 5541 type ii, class 1a and class 3 rohs compliant astm b921 class 1a and class 3 rohs compliant we are an approved supplier for. Difference between milc5541e, amsc5541, and mildtl. This kind of film usually looks brown or gold, but can be colorless at times. Chemical conversion coatings on aluminum and aluminum alloys. Jan 28, 2008 mil c5541 did not mention type i or ii whereas mil dtl 5541 link is to free spec at defense logistics agency, dla. Milc5541 link is to free spec at defense logistics agency, dla. We offer mil dtl 5541f finishing to meet the rohs directive. We also offer the more traditional process for gold and yellow mil dtl 5541f class 1a requirements.
Mildtl5541 chemical conversion coatings on aluminum. Mil dtl 5541f 11 july 2006 superseding mil c5541e 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. Mil c5541e, mil dtl 5541f, astm b 44993 2004, ams 2473g, ams 2474d and mil dtl 81706b. I posted the mildtl5541 f use or not use type i chemical conversion coating and the person i work with says the answer from southern is incorrect that it has to do with anodizing and not chemical coversion coating. The abbott aerospace technical library is made possible by generous donations from our users. Mil mildtl5541f chemical conversion coatings on aluminum and aluminum alloys superseding mil c5541e standard by military specifications and standards, 07112006 amendments available view all product details.
A recognized expert in the aluminum finishing industry since 1987, weve been providing high quality finishing services to industries throughout the united states. All assured cyclic chambers are plc controlled, allowing 247 automated exposure and providing uniform, repeatable results each test cycle. Mil c5541 datasheet, cross reference, circuit and application notes in pdf format. For the makeup, dilute surtec 650 chromital concentrate in deionised diwater. Mil dtl 5541f superseding mil c5541e 30 november 1990 1990. Process specification for the chemical conversion coating of aluminum alloys december 2007 prepared by. Mildtl5541f type i materials, existence of a coating can be verified by using a simple spot test specified in astmb449. This chromate conversion process is free from hexavalent chromium and complies with the requirements of mil dtl 5541f type ii, class 1a, and class 3. Mildtl55116 solutions eatons mildtl55116 connectors and cable assemblies incorporate rugged designs that have been field proven in an extensive range of applications that include the sincgars and jtrs radio systems. Amphenol mildtl5015, matrix table of contents mildtl5015, matrix design characteristics, customer options 433 insert availability and identification 434, 435 insert arrangement drawings 436444. Aluminum chromate conversion coatings, often referred to as chemical film or under the trade names alodine or irridite, produce a thin coating in the range of 0. Mil dtl 5541f detail specification, chemical conversion coatings on aluminum and aluminum alloys 7. Mildtl 5541 covers all chemical conversion coatings which are known to create protection through chemical reaction with metals like aluminum and aluminum alloy.
This document is available in either paper or pdf format. This specification covers chemical conversion coatings formed by the reaction. Mildtl55302 rectangular mil spec connectors mouser. Mil dtl 5541f superseding mil c5541e 30 november 1990. A comprehensive array of qpl and specialized designs includes inline and panelmount connectors, emirfi filtered. Surtec 650 is a rohs, reach compliant and qpl approved liquid chemical used to form a protective conversion coating on aluminum surfaces without the use of hexavalent chromium.
Mil dtl 5541 also has established two types of chem film coating. The current specification 2009 is mil dtl 5541f, which. Mil c 5541f, chemical films, chromate iridite, aluminum 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. Nov 29, 2014 the current specification 2009 is mil dtl 5541f, which superseded mil c5541e in july 2006. Akzonobel 10p20 milprf23377 primer 10p20 milprf23377 primer. I agree, ted the biggest difference between mil c5541e and mil dtl 5541f is that the buyer can ask for a type ii coating which will contain no hexavalent chromium. I need to know when to use type i and not to use type i finish. Finish clear chemical film per mil dtl 5541f, type ii, class 3 fasteners included ga2402.
Chemical conversion coating mildtl5541 aluminum coatings. What is alodine chem film chromate conversion coating. 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. Corrosion protection withstands 48 hours of corrosion resistance per mil c 5541 and mil dtl. Difference between milc5541 class 1a and mildtl5541 type. Mil mil dtl 5541f chemical conversion coatings on aluminum and aluminum alloys superseding mil c5541e standard by military specifications and standards, 07112006 amendments available. For mil dtl 5541, it is very clear when type ii is mentioned, the conversion coating shall not contain hexavalent chrome, hence, rohs compliant.
Department of defense was the first to use tcphf trivalent chromium, hexfree and this trivalent chromate conversion coating has become such an accepted standard that a detailed specification, mil dtl 5541, included it. Iridite chromate conversion coating finish milc5541. Check the source to verify that this is the current. Aluminum chromate conversion coatings are amorphous in structure with a gellike composition hydrated with water. Aluminum chromate conversion coatings are amorphous in structure with. Process specification for the heat treatment of aluminum.
Qpl number 81706 mil c5541 document id mil dtl 81706b, type ii, class 1a, form i, method c document id mil dtl 81706b, type ii, class 3, form i, method c. The current specification 2009 is mil dtl 5541f, which superseded mil c5541e in july 2006. These coatings can modify the surface of the aluminum material for improved corrosion resistance, electrical. The military specification referred to as mildtl 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. 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. This specification covers chemical conversion coatings formed by the reaction of chemical conversion materials with the surfaces of aluminum and aluminum alloys. A record will be kept of the history of each processing bath showing all additions of. Mil dtl 5541f chemical conversion coatings on aluminum and aluminum alloys.
Dtl specs provide exact instructions and requirements. Prf specs give a performance minimum and let the vendorsupplieruser figure out how to get there, e. We offer an rohscompliant clear trivalent chromium process that is free from hexavalent chromium and complies with the requirements of mil dtl 5541f class 3. Type 1 this includes all coatings that have hexavalent chromium. Files, chief materials and processes branches4 date. Chemical conversion coatings on aluminum plating per mil dtl 5541 and mil c5541 conversion coatings for aluminum meets requirements of military specifications mil dtl 5541 specifications aluminum alloys and coatings benefit from additional protective features of conversion coatings. The specification is approved for use by all departments and agencies of the united states department. Mil dtl 5541 chemical conversion coatings on aluminum and aluminum alloys this specification covers chemical conversion coatings formed by the reaction of chemical conversion materials with the surfaces of aluminum and aluminum alloys. Resin impregnation also addresses the inherent defects in parts prior to plating. The trivalent chromium process tcp provides a non hexavalent chrome coating compliant with rohs, elv and weee directives. Mil dtl 81706 chemical conversion materials for coating aluminum and aluminum alloys this qpl has been prepared for use by or for the government in the acquisition of products covered by the subject specification and inclusion of a product is not intended to and does not connote endorsement of the product by the department of defense. Mil dtl 5541, datasheet, cross reference, circuit and application notes in pdf format. This procedure covers the application of zincmanganese phosphate coatings on ferrous alloys, meeting the requirements of mil dtl 16232.
The chemical conversion coatings are of the following types. Pdf mil c5541 finishes mil dtl 81706 mil c5541 class 3 rohs thermalloy astm b 117 citizen aavid. Type ii trivalent chromate is the rohsrestriction of hazardous substances compliant. Mil dtl 5541f revision f is the latest military spec for chromate conversion coatings on aluminum replacing mil c5541e.
Process specification for the heat treatment of aluminum alloys. Chemical films alodine we have a hoist line and large part capacity. A discussion started in 2004 but continuing through 2017. Compatible with chemical agentresistant aliphatic polyurethanetopcoats.
Global metal finishing is a multiline aluminum anodizing and precision hard coating facility. Mildtl5541f chemical conversion coatings on aluminum and. This specification is approved for use by all departments and agencies of the department of defense. The format and any coded meanings to the designation are identified and explained in the specification. Govt designation a government designation is the name or number as assigned in the governing specification document. This was formerly known as milc5541 and is another of our alltime bestselling plating specs. Tricoms mil dtl 53030d primer is lead and chromate free. Type i is the traditional hexavalent chrome based coating that is most recognizable by its color that can range anywhere from yellow to gold to green to brown, and even clear upon request.
Mil dtl 81706b 25 october 2004 superseding mil dtl 81706a 18 february 2002 detail specification chemical conversion materials for coating aluminum and aluminum alloys this specification is approved for use by all departments and agencies of the department of defense. Please help us to maintain, expand and improve the technical library. Nsn a national stock number nsn is a thirteen digit number uniquely identifying a single government part designation. Mil c5541e chemical conversion coatings on aluminum and aluminum alloys. Surtec 650 chromital can be used in immersion, spray and wipe application. Mildtl5541f chemical conversion coatings on aluminum.
Home mil specs mil dtl 5541f chemical film mil dtl 5541 chemical conversion coating military specification mil dtl 5541 chemical conversion coatings on aluminum and aluminum alloys applies to chemical conversion coatings formed by the reaction of chemical conversion materials within the surfaces of aluminum and aluminum alloys. Sep 17, 2015 mil dtl 5541f type i materials, existence of a coating can be verified by using a simple spot test specified in astmb449. For type ii materials, existence of a coating should be verified per the. Mildtl 5541 chemical conversion coatings on aluminum and aluminum alloys. This was formerly known as mil c5541 and is another of our alltime bestselling plating specs. A two component, air dry, water reducible epoxy type primer for ferrous and nonferrous metals. Military specification mil dtl 5541 chemical conversion coatings on aluminum and aluminum alloys applies to chemical conversion coatings formed by the reaction of chemical conversion materials within the surfaces of aluminum and aluminum alloys.
Mildtl5541 chemical conversion coatings on aluminum and. Mil dtl 5541 datasheet, cross reference, circuit and application notes in pdf format. Renumbered as mil dtl 5541f format details price pdf. Mildtl55302 rectangular mil spec connectors are available at mouser electronics. 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. Aluminum chromate conversion coating advanced plating.
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