Designation:B605−95a(Reapproved2015)StandardSpecificationforElectrodepositedCoatingsofTin-NickelAlloy1ThisstandardisissuedunderthefixeddesignationB605;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstherequirementsforelectrode-positedtin-nickelalloycoatingsfromaqueoussolutionsin-tendedforthecorrosionprotectionoffabricatedarticlesofiron,steel,zinc-basealloys,copper,andcopperalloys.Thecompositionofthealloyremainsconstantat65/35tin-nickelinspiteofwidefluctuationsinbothcompositionandoperatingconditions.Thecompositioncorrespondsquitecloselytoanequiatomicratio,andtheprocessfavorstheco-depositionoftinandnickelatomsatidenticalrates.1.2Thisspecificationdoesnotapplytosheet,strip,orwireinthefabricatedform.Italsomaynotbeapplicabletothreadedarticleshavingbasicmajordiametersuptoandincluding19mmbecauseofthenonuniformityofthicknessthatcanbeexpectedonfinethreads.However,adecisiontousethecoatingonsuchcomponentsmaybemadebythepurchaser.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B183PracticeforPreparationofLow-CarbonSteelforElectroplatingB242GuideforPreparationofHigh-CarbonSteelforElec-troplatingB246SpecificationforTinnedHard-DrawnandMedium-Hard-DrawnCopperWireforElectricalPurposesB252GuideforPreparationofZincAlloyDieCastingsforElectroplatingandConversionCoatingsB281PracticeforPreparationofCopperandCopper-BaseAlloysforElectroplatingandConversionCoatingsB322GuideforCleaningMetalsPriortoElectroplatingB374Termino...
