ASTM_B_699_-_86_2015.pdf

Designation:B69986(Reapproved 2015)Standard Specification forCoatings of Cadmium Vacuum-Deposited on Iron and Steel1This standard is issued under the fixed designation B699;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the requirements for a cad-mium coating vacuum-deposited on iron and steel basis metals.The coating is especially beneficial to those ferrous metals,heat treated to 46HRC and higher or having an ultimate tensilestrength greater than 1500 MPa,wherein protection againstcorrosion and appearance are important(see Appendix X1).1.2 Vacuum-deposited production items are normally free ofhydrogen embrittlement,a danger when using electroplatingprocesses for deposition.Vacuum deposition can handle largehigh-strength parts that cannot be conveniently mechanicallyplated in the rotating barrels.1.3 The coating is provided in various thicknesses up to andincluding 12 m(3.1)either in the as-deposited condition orwith a supplementary finish(3.2).1.4 The following precautionary caveat pertains only to thetest methods portion,Section 9,of this specification:Thisstandard does not purport to address all of the safety problems,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2B117 Practice for Operating Salt Spray(Fog)ApparatusB183 Practice for Preparation of Low-Carbon Steel forElectroplatingB201 Practice for Testing Chromate Coatings on Zinc andCadmium SurfacesB242 Guide for Preparation of High-Carbon Steel for Elec-troplatingB254 Practice for Preparation of and Electroplating onStainless SteelB320 Practice for Preparation of Iron Castings for Electro-platingB322 Guide for Cleaning Metals Prior to ElectroplatingB440 Specification for CadmiumB487 Test Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionB499 Test Method for Measurement of Coating Thicknessesby the Magnetic Method:Nonmagnetic Coatings onMagnetic Basis MetalsB504 Test Method for Measurement of Thickness of Metal-lic Coatings by the Coulometric MethodB567 Test Method for Measurement of Coating Thicknessby the Beta Backscatter MethodB568 Test Method for Measurement of Coating Thicknessby X-Ray SpectrometryB571 Practice for Qualitative Adhesion Testing of MetallicCoatingsB602 Test Method for Attribute Sampling of Metallic andInorganic CoatingsB697 Guide for Selection of Sampling Plans for Inspectionof Electrodeposited Metallic and Inorganic CoatingsE396 Test Methods for Chemical Analysis of CadmiumF519 Test Method for Mechanical Hydrogen EmbrittlementEvaluation of Plating/Coating Processes and Service En-vironments3.Classification3.1 ClassesVacuum-deposited cadmium coatings shall beclassified on the basis of thickness,as follows:ClassMinimum Thickness,m121288553.2 TypesVacuum-deposited cadmium coatings shall beidentified by types on the basis of supplementary treatmentrequired,as follows:3.2.1 Type IAs-vacuum-deposited without supplementarychromate treatment(see Appendix X1).3.2.2 Type IIWith supplementary chromate treatment(seeAppendix X2).NOTE1It is strongly recommended that Type II should be used ratherthan Type I on production items.1This specification is under the jurisdiction of ASTM Committee B08 onMetallic and Inorganic Coatings and is the direct responsibility of SubcommitteeB08.06 on Soft Metals.Current edition approved March 1,2015.Published April 2015.Originallyapproved in 1981.Last previous edition approved in 2008 as B699 86(2008).DOI:10.1520/B0699-86R15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Ordering Information4.1 To make the application of this specification complete,the purchaser needs to supply the following information to thesupplier in the purchase order or other governing document:4.1.1 The designation number and year of issue of thisdocument.4.1.2 Class and type(3.1 and 3.2),4.1.3 Hardness or tensile strength of the steel parts(5.2),4.1.4 Heat treatment for stress relief,whether it has beenperformed or is required,4.1.5 Undercoating,if required(5.5),4.1.6 Test of coating composition,if required(6.1),4.1.7 Significant surfaces(6.2.2),4.1.8 Luster(6.6),4.1.9 Sampling,if other than specified(Section 7),4.1.10 Certification(11.1),and4.1.11 Supplementary requirements,if applicable.5.Materials and Manufacture