Amsqqp35 passivation treatments for corrosionresistant. Passivation helps improve the corrosion resistance without having. Revision a actually just issued the cancellation notice, replacing this specification with the ams2700 document. Ams qq p 35 cancelled and replaced by ams 2700 in february 2005. Ams 2700 method 2 citric passivation ams 2700 supersedes ams qqp35 and qqp35c, but we still offer certification to the superseded specifications qqp35 type i, type ii, type iii, type iv and type vi.
Pti supports various industries, with hundreds of specialized process approvals from more than 40 oems as well as certifications from the federal aviation administration faa, european aviation safety agency easa and national aerospace and defense contractors accreditation program nadcap. Fluorescent penetrant inspection astme1417 hardness rockwell astme18. Ams 2700 method 2 citric passivation ams 2700 supersedes ams qq p 35 and qq p 35c, but we still offer certification to the superseded specifications qq p 35 type i, type ii, type iii, type iv and type vi. Astm a967 ams 2700 qqp35 replaced w astm a967 ams qqp35 replaced w ams 2700 spec 11200071 code 2021 astm a380. This specification covers the requirements for a process to assure removal of free iron or other less noble contaminants from the surfaces of corrosion resistant steel parts. Federal specification qqp35, astm a967, saeams qqp35, and ams 2700 description. Most military standards that require passivation still specify qqp35, even though the military cancelled the standard and turned it over to sae international to maintain as amsqqp35. The cancellation notice specifies that qqp35 can be replaced by both astm a967 and ams qqp35. General plating provides services in metal plating and has the capabilities for plating of 17 finishes and specs. Ams refers to aerospace material specification which is developed and published by sae international which prior to 2006 was known as the society of automotive engineers. Passivation of corrosion resistant steels ams2700c. All passivated components underwent thorough testing that included humidity, salt spray, water immersion, and copper sulfate testing to ensure that the components met the needs of the client and the industry.
We also met astm a380, ams qqp35, astm a967, and ams 2700 standards. Equivalent to qqp35 spec for passivation of stainless steel. Equivalent to qqp35 spec for passivation of stainless. We also met astm a380, ams qq p 35, astm a967, and ams 2700 standards. We work with all parts up to 3 ft 914 mm in both length and width. Astm a967 and ams 2700 standards for passivation rp abrasives. Meeting with high astm, ams, and nasa industry standards, our passivation process ensures that our customers receive topnotch corrosion resistant product within a short, twoday lead time. Passivation treatments for corrosionresistant steel ss by astma967 or sae ams qq p 35 scope. Qqp35c canceled qqp35c, the longtime military specification for stainless steel passivation, has been canceled in favor of astm a967 and ams 2700.
May 1, 1998 passivation treatments for corrosionresistant steel 1. The processes defined in this specification have been used typically. Sae amsqqp35 complete document 1998 edition, may 98. This practice references qq p 35 later renumbered ams qq p 35 and then withdrawn in favor of ams 2700, another major passivation document. Passivation is the acidic removal of residual iron or other contaminants from the surface of stainless steel. Lockheed martin lessons learned stainless steel passivation general information qq p 35 has been cancelled and superseded by astm a967 or ams qq p 35. Amsqqp35 has been cancelled and superseded by ams 2700.
Qqp35 was superseded by amsqqp35 for aerospace products and amsqqp35 was cancelled and superseded by ams2700. Iridite milc5541 mildtl5541 class 3 ams 2474 astm b449 class 3 7. Ams qq p 35 has been cancelled and superseded by ams 2700. Lockheed martin lessons learned stainless steel passivation general information qqp35 has been cancelled and superseded by astm a967 or amsqqp35. We specialize in the aerospace, military, and defense industries but also serves a large customer base in the commercial, industrial, and medical fields as well. Our services meet astma967 type ii, vi, and qqp35 type ii and vi specifications. Citric acid is not an allowed substitution when qq p 35 is called for.
Passivation treatments for corrosionresistant steel ss by astma967 or saeamsqqp35 scope. Jun 17, 2015 document a86397 revision f introduction bae systems ams qq p 35. Passivation of corrosion resistant steels features method 1, passivation in nitric acid, and method 2, citric acid, and 8 types. Revision a actually just issued the cancellation notice, replacing this specification with the ams 2700 document. Originally, the ams qq p 35 was just a reprint of the qq p 35c. Ttc490 type i zinc phosphate, type ii iron phosphate rhodium. Our services meet astma967 type ii, vi, and qq p 35 type ii and vi specifications. In march 2018, sae issued a new revision, ams 2700 f which superseded ams 2700 e which had been issued in november 2011. Saes replacement for qq p 35, ams 2700, brought back all the removed baths and lists them as method 1, type 18. This document is available in either paper or pdf format. Ams2700 has a class 4 which is supposed to be used when qqp35 or amsqqp35 are specified.
Advance surface technologies provides both nitric and citric passivation treatments on titanium and stainless steel alloys that adhere to qqp35c, amsqqp35a, ams 2700c, astm a 96705 and astm a 38006 standards. Passivation of stainless steel astm a967, qqp35, ams 2700. The specifications listed are similar but not identical. Whatever happened to qqp35, passivation treatments for. Stainless steel passivation services from imagineering. Passivation is used to remove impurities on the surface of stainless steel alloys.
Approvals precision performance innovation delivered on time aerospace quality systems chemical processing aerospace quality systems chemical processing aerospace quality systems audit 177996 scopeofaccreditation aerospace quality systems audit 177996 certificate aerospace quality systems audit 177995 scopeofaccreditation aerospace quality systems. Revision e of amsqqp416 corrects the errors in table 1a and removes the 24 hours minimum from the drying time requirement of 3. Military specifications milspec milstd753 lab testing sps. B type ii passivation is designed for use with 400 series stainless, screws machining grades 303, 303se, 347se. Ams qq p 35 type superseding ams 2700 type ii 2 vi 6 vii 7 viii 8 not specified use type appropriate for alloy, subject to.
Passivation alone will not remove heavy adherent oxide films created from heat treatment, welding. Passivation treatments for corrosionresistant steel. Aerodynamics is a state of the art, fullservice electroplating finishing company with nadcap approval and over 40,000 square feet of capacity. Passivation, pickling, pickelpassivation applicable specifications. Like astm a967 did for other industries, the new ams specification allows the use of citric acid passivation in the aerospace industry. This specification covers the different types of passivation treatments as well as recommendations, guidance and precautions for cleaning and descaling corrosionresistent parts, components, equipment and systems.
Passivation of stainless steel is a process that removes free iron from the surface of a stainless component and at the same time promotes the formation of a thin, dense oxide protective barrier. The two standards, except for some format changes so it looks like other sae standards, are identical. Passivation services aerospace aircraft components. Purchase the cancellation notice 3 for the qq p 35 to get the replacement information for that document. Lockheed martin lessons learned stainless steel passivation qqp35 has been cancelled and superseded by astm a967 or amsqqp35. Lockheed martin lessons learned stainless steel passivation. The formation of the protective passive film on a stainless steel will occur spontaneously in air or other oxygencontaining environment when the stainless steel surface is free of oxide scale. Officially, only dod users are compelled to the automatic rollover from qq p 35 to the two newer standards. The astm a967a967 replaces astm a967a967m05 which is now obsolete. Purchase the cancelled revision a for the ams qq p 35. Advance surface technologies provides both nitric and citric passivation treatments on titanium and stainless steel alloys that adhere to qq p 35c, ams qq p 35a, ams 2700c, astm a 96705 and astm a 38006 standards. This document comes with our free notification service, good for the life of the document. Amsqqp35 type superseding ams 2700 type ii 2 vi 6 vii 7 viii 8 not specified use type appropriate for alloy, subject to. Most backordered items can be rushed in from the publisher in as little as 24 hours.
That table and guidance is not contained in the ams 2700 document which the sae has identified as superseding ams qq p 35 in its february 2005 cancellation of ams qq p 35, nor is the qq p 35 ams qq p 35 type i callout included in the cross reference table included in the ams qq p 35 to ams 2700 type cross reference table found on the. Special process supplier list supplier process applicable specs aerospace metal finishing,inc. Dod16232 type m manganese phosphate phosphate, light. The sixth edition, revision f, is used to remove rust from stainless steel.
This specification covers the different types of passivation treatments as well as recommendations, guidance and precautions for cleaning and descaling corrosionresistant parts, components, equipment and systems. This document was revised to incorporate the essential requirements of ams qq p 35. The new specifications allow you to do your stainless steel passivation with state of the art citrisurf citric acid passivation technology that is safe and environmentally friendly. Pasivation process ams 2700 ams qq p 35 astm a 967 astm 380 supplementary processes abrasive blasting glass bead alum oxide bake embrittlement relief marking masking product assembly silk screening inspection. These operations can remove the passive oxide layer thereby exposing iron or transferring iron onto the surface. Passivation although stainless steel is known to be a corrosion resistant alloy, it can become reactive after subjected to certain manufacturing applications such as machining or shot peening. Qqp325b type i clear type ii yellow class 1,2,3 astm b633 type i clear type ii yellow phone. Astm a967 citric 1, citric 2, nitric 1 and nitric 2. To resolve questions, consult the latest revision of the actual specification. Despite the mess detailed above thats been made with ams 2700, where the cancelled and superseded qqp35 or amsqqp35 documents have been called out, there is no supersession trail no authority to use astm a967 in their place for aerospace applications. Officially, only dod users are compelled to the automatic rollover from qqp35 to the two newer standards. Originally, the amsqqp35 was just a reprint of the qqp35c.
The following information shall be provided to the plating processor by the purchaser. Astm a967 also has a citric section, and ams 2700 has citric as method 2. Differences between the 2011 and 2018 versions of ams 2700. May 03, 2018 the f in the sae ams 2700f2018 designation indicates that this document is the sixth edition of the standard for the passivation of corrosion resistant steels. Purchase order shall specify not less than the following. Finish and provide cert to ams 2700 method 1 class 4. Passivation of aerospace stainless steel parts with citric. Qq p 35 was superseded by ams qq p 35 for aerospace products and ams qq p 35 was cancelled and superseded by ams2700.
At accurate precision plating we offer industrial passivation. A clean water rinse shall be used as applicable following each cleaning or plating operation. Prime plating 121 goss street sun valley, ca 952 818 7689100 fax. Saes replacement for qqp35, ams 2700, brought back all the removed baths and lists them as method 1, type 18. Citric acid passivation for titanium and titanium alloys is now recognized in the astm standard. Ams qq p 35 itself was canceled and superseded in february 2005 by ams 2700. Passivation is the chemical treatment of a stainless steel with a mild oxidant, such as a nitric or citric acid solution, for the purpose of the removal of free iron or other foreign matter. Qqn290 class 1 for corrosion protection class 2 for engineering applications grade a. Pasivation process ams2700 amsqqp35 astm a 967 astm 380 supplementary processes abrasive blasting glass bead alum oxide bake embrittlement relief marking masking product assembly silk screening inspection. This practice references qqp35 later renumbered amsqqp35 and then withdrawn in favor of ams2700, another major passivation document. Since qqp35 was a federal specification it was an obvious candidate for replacement with a u. Sae amsqqp35 february 1, 2005 passivation treatments for corrosionresistant steel this specification covers the different types of passivation treatments as well as recommendations, guidance and precautions for cleaning and descaling corrosionresistant parts, components. Sae standard for passivation of corrosion resistant steels. Passivate clear passivate qqp35 type ii, vi, vii amsqqp35 types ii, vi, vii, viii astm a 96705 astm a380 codes f thru m 5.
Passivating stainless steel qqp35c passivation of steel. This specification was altered to add ordering information, and changes were made to the sections covering methods, corrosion resistance, water immersion, copper sulfate test, and. Revision c from 1988 was withdrawn by cancellation notice 3 on 9111998. Milr46085b or astmb634 silver semibright and matte. Qq p 35 cancelled and replaced by ams qq p 35 and astma967 in 91998. The difference is sample size for verification testing. Various acids, such as nitric acid, mixed acid, or citric acid are used to. Passivation of aerospace stainless steel parts with citric acid solutions stephen p. Passivation treatments for corrosionresistant steel rev c ed. Louis, missouri, usa ams qq p 35 which replaced federal specification qq p 35 is an sae standard used in the aerospace industry to passivate stainless steel parts. Louis, missouri, usa amsqqp35 which replaced federal specification qqp35 is an sae standard used in the aerospace industry to. Astm a967 ams 2700 qq p 35 replaced w astm a967 ams qq p 35 replaced w ams 2700 spec 11200071 code 2021 astm a380 iaw 79p050000, code 2041 lockheed iaw 79p050000, code 2042 lockheed milf14072300 e. Sae amsqqp35 complete document revision a, february 5. Ams2700 has a class 4 which is supposed to be used when qq p 35 or ams qq p 35 are specified.
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