SAE AMS6264 Steel, Carburizing Grade, Bars, Forgings, and Tubing, 1.2Cr - 3.2Ni - 0.12Mo (0.14 - 0.20C) (SAE 9317)
作者:标准资料网 时间:2024-05-12 18:50:10 浏览:8450
来源:标准资料网
Product Code:SAE AMS6264
Title:Steel, Carburizing Grade, Bars, Forgings, and Tubing, 1.2Cr - 3.2Ni - 0.12Mo (0.14 - 0.20C) (SAE 9317)
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
【英文标准名称】:TestMethodforQualitativeAnalysisforActiveSulfurSpeciesinFuelsandSolvents(DoctorTest)
【原文标准名称】:燃料和溶剂中活性硫物种的定量分析用试验方法(含硫试验)
【标准号】:ANSI/ASTMD4952-2002
【标准状态】:作废
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:机动车燃料;含硫试验;煤油;溶剂;硫含量;测试
【英文主题词】:Automotivefuels;Doctortests;Kerosine;Solvents;Sulphurcontent;Testing
【摘要】:Thistestmethodisintendedprimarilyforthedetectionofmercaptansinmotorfuel,kerosine,andsimilarpetroleumproducts.Thismethodmayalsoprovideinformationonhydrogensulfideandelementalsulfurthatmaybepresentinthesesampletypes.ThevaluesstatedinacceptableSIunitsaretoberegardedasstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_080;75_160_20
【页数】:
【正文语种】:英语
【英文标准名称】:Cathodicprotectionforfixedsteeloffshorestructures
【原文标准名称】:海上固定钢结构的阴极保护
【标准号】:BSEN12495-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-05-15
【实施或试行日期】:2000-05-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:海水;电流的;表面防护;近海建设工程;水下建筑工程;交付使用;电解镀层;覆层;阳极;监督(认可);阴极保护;钢;钢结构;近海工程;文献工作;安装;防腐蚀;定义;安全;材料
【英文主题词】:
【摘要】:ThisEuropeanStandarddefinesthemeanstobeusedtocathodicallyprotectthesubmergedareasoffixedsteeloffshorestructuresandappurtenances.1StructuralpartsThisEuropeanStandarddefinestherequirementsforthecathodicprotectionoffixedstructures,includingsubseaproductionandrelatedprotectivestructureswhetherconnectedornottoeachotherbypipelinesand/orwalkways.Italsocoversthesubmergedareasofappurtenancesattachedtothestructure,whentheseareelectricallyconnectedtothestructure.Itdoesnotcoverthecathodicprotectionoffloatingstructuressuchasships,semi-submersibleunits,orelongatedstructuressuchaspipelinesorcables.ThisEuropeanStandardconcernsonlythecathodicprotectionofexternalsurfaces,incontactwiththeseawaterorwiththeseabed.Itcoverstheimmersedorburiedexternalsurfacesofthejacket,conductorpipes,wellcasings,piles,J-tubes,productionorutilityrisers,etc.Itdoesnotcoverthecorrosionprotectionofthesectionsofthestructureabovethesealevel,i.e.thesplashzoneandatmosphericzone.Thisstandarddoesnotincludetheinternalprotectionofanycomponentssuchasjacketmembers,legs,conductorpipes;theprotectionoftheseisoftenperformedusingchemicals.2MaterialsThisEuropeanStandardcoversthecathodicprotectionofbareorcoatedsteelswithaspecifiedminimumyieldstrength(S.M.Y.S.)notexceeding500N/mm.2.1OverpolarizationandhighstrengthsteelsIfthepotentialofthestructurebecomestoonegativethestructurewillbecomeoverpolarizedandthiscaninduceapenetrationofhydrogenintothesteelwall,resultinginembrittlementofthemetal,andsubsequentlyapossibledetrimentaleffect,includingpropagationofcracks.Asageneralindicationthehigherthetensileproperties,thegreateristheriskofhydrogeninduceddamage.However,materialhardnessandmicrostructurearealsoimportant.Thesephenomenacanoccuronconventionalsteelsusedforoffshorefixedstructures(gradeS355asperEN10025)atpotentialsmorenegativethan-1,10Vvs.Ag/AgCl/seawater.Relevanttestsshouldbeperformedfortheuseofcathodicprotectionoutsidetheselimits.2.2GalvaniccouplingSomepartsofthestructurecanbemadeofmetallicmaterialsotherthancarbonmanganesesteel.Thecathodicprotectionsystemshouldbedesignedtoensurethatthereiscompletecontroloveranygalvaniccorrosionarisingfromthiscoupling.3EnvironmentThisEuropeanStandardisapplicableforthewholesubmergedzoneinanykindofseawaterorseabed.Forsurfaceswhicharealternatelyimmersedandexposedtotheatmosphere,thecathodicprotectionisonlyeffectivewhentheimmersiontimeissufficientlylongforthesteeltobecomepolarized.Thisisthecaseonaboutthelowestthirdpartofthetidalzone.Adifferentmethodofcorrosionprotectionshallbethereforeusedfortheprotectionofthewettedsurfacelocatedabovethislevel,i.e.byusingaprotectivecoating,cladding,sheathingorincreasingthethicknessofthestructuralmaterial.
【中国标准分类号】:A29
【国际标准分类号】:47_020_05;77_060
【页数】:36P;A4
【正文语种】:英语
