ASTM钢铁标准.A1022

StandardSpecificationfor

DeformedandPlainStainlessSteelWireandWeldedWireforConcreteReinforcement1ThisstandardisissuedunderthefixeddesignationA1022;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.

1.Scope

1.1Thisspecificationcoversstainlesssteelwireandweldedwirereinforcementproducedfromhot-rolledstainlesssteelrod.Thestainlesssteelwireiscold-worked,drawnorrolled,plain(non-deformed)ordeformedoracombinationofde-formedandplain.Itisusedasconcretereinforcementforapplicationsrequiringresistancetocorrosionand/orcontrolledmagneticpermeability.Commonwiresizesanddimensionsarefoundinthisspecification.Actualwiresizesarenotrestrictedtothoseshowninthetables.

1.2SupplementS1describeshighstrengthwire,whichshallbefurnishedwhenspecificallyordered.Itshallbepermissibletofurnishhighstrengthwireinplaceofregularwireifmutuallyagreedtobythepurchaserandsupplier.

1.2.1Asupplementaryrequirement(S2)ofanoptionalnatureisprovided.Itshallapplyonlywhenspecifiedbythepurchaser.Inordertoobtainacorrosiontestedorcontrolledmagneticpermeabilityproduct,steelconformingtoSupple-mentaryRequirementS2shouldbeordered.

1.3Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedasstandard.Withinthetexttheinch-poundunitsareshowninparentheses.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesmayresultinnonconformancewiththespecification.

1.4Thechemicalcompositionofthesteel(stainlessgrade)shallbeselectedforsuitabilitytotheapplicationinvolvedbyagreementbetweenthemanufacturerandthepurchaser.UseSpecificationA276forchemicalrequirements.TheUNSdesignationsaretobeincludedwiththetypenumberandnotedinbrackets,i.e.austeniticstainlesssteelsasType304[S30400],304L[S30403],316[S31600],316L[S31603],316N[S31651],316LN[S31653]andduplexstainlesssteels,Types2205[S32205]and329[S32900].

NOTE1—Onlyausteniticandduplexstainlesssteelsareusuallyrecom-mendedforuseasreinforcementinconcretebecauseoftheirhighcorrosionresistance.Austeniticstainlesssteelshavegoodgeneralcorro-sionresistance,strengthcharacteristicswhichcanbeimprovedbycold

working,goodtoughnessandductilitypropertiesatlowtemperatures,andlowmagneticpermeability.Duplexstainlesssteelshavegenerallyacorrosionresistancegreaterthanthatofmostausteniticsteelsandaremagnetic.Otherstainlesssteelswithdifferentchemicalcompositionsthantheseriesandtypesmentionedabove,maybeusedforlessrestrictiveapplications.

1.5Wireforweldedwirereinforcementisgenerallymanu-facturedat520MPa(75ksi)yieldstrengthlevel.Otherstrengthlevelsshallbebyagreementbetweenthepurchaserandmanufacturer.

NOTE2—ThetermusedtorefertoyieldstrengthlevelsarethesameasthoseinASTMStandardsforweldedwirereinforcement.

2.ReferencedDocuments2.1ASTMStandards:

A82SpecificationforSteelWire,Plain,forConcreteRe-inforcement2A185SpecificationforSteelWeldedWire,PlainforCon-creteReinforcement2A262PracticesfordetectingSusceptibilitytoIntergranularAttackinAusteniticStainlessSteels3A276SpecificationforStainlessSteelBarsandShapes3A314SpecificationforStainlessSteelBilletsandBarsforForging3A342TestMethodsforPermeabilityofFeeblyMagneticMaterials4A370TestMethodsandDefinitionsforMechanicalTestingofSteelProducts3A496SpecificationforSteelWire,Deformed,forConcreteReinforcement2A497SpecificationforSteelWeldedWire,Deformed,forConcreteReinforcement2A700PracticesforPackaging,MarkingandLoadingMeth-odsforSteelProductsforDomesticShipment5A704SpecificationforWeldedSteelPlainBarorRodMatsforConcreteReinforcement2A955DeformedandPlainStainlessSteelBarsforconcreteReinforcement(Metric)2ThisspecificationisunderthejurisdictionofASTMCommitteeA01onSteel,StainlessSteel,andRelatedAlloysandisthedirectresponsibilityofSubcommitteeA01.05onSteelReinforcement.

CurrenteditionapprovedDec.10,2001.PublishedFebruary2002.

123AnnualAnnual4Annual5AnnualBookBookBookBookofofofofASTMASTMASTMASTMStandards,Standards,Standards,Standards,VolVolVolVol01.0401.0303.0401.05

Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.

1

E83PracticeforVerificationandClassificationofExten-someters62.2MilitaryStandards:

MIL-STD-129MarkingforShipmentandStorage7MIL-STD-163SteelMillProductsPreparationforShip-mentandStorage72.3FederalStandard:

Fed.Std.No.123MarkingforShipments(CivilAgencies)72.4OtherStandard:

ACI318BuildingCodeRequirementsforStructuralCon-crete83.Terminology

3.1DefinitionsofTermsSpecifictoThisStandard:

3.1.1stainlesssteelplainwireandweldedplainwirereinforcement—asusedwithinthescopeandintentofthisspecification,designatesamaterialcomposedofcold-workedstainlesssteelwire,ascold-drawnorcold-rolledfromstainlesssteelhot-rolledrod.Theweldedintersectionsprovidethebondstrengthforshearresistance.

3.1.2stainlesssteeldeformedwireandweldeddeformedwirereinforcement—asusedwithinthescopeandintentofthisspecification,designatesamaterialcomposedofcold-workeddeformedstainlesssteelwireascold-drawnorcold-rolledfromstainlesssteelhot-rolledrod.Deformationsmaybeindentedorraisedrib(protrusion)types.Aswithplainstainlesssteelweldedwire,theweldedintersectionsprovidebondstrengthforshearresistanceandthedeformationsaddtothebondstrength.

3.1.3convolutedwire—whenwireforweldedwirerein-forcementisformedintoasinusoidalwaveshape,itiscommonlyreferredtoasconvolutedwire.Thewireisusedinthemanufactureofcagesforcertainapplicationsofconcretepipereinforcement.Onlyplainwireisnormallysubjecttoconvolution.

4.OrderingInformation

4.1Itshallbetheresponsibilityofthepurchasertospecifyallrequirementsthatarenecessaryformaterialorderedtothisspecification.Suchrequirementshallincludebutarenotlimitedtothefollowing:

4.1.1Quantity–mass(weight)orsquarearea.

4.1.2Nameofmaterial(Ex:stainlesssteelweldedwireforconcretereinforcement).

4.1.3Wirespacingandwiresizes.

4.1.4Exclusionofover-steelingorusingalargerareaofsteelthanspecified.

4.1.5Lengthandwidthofsheetsorrolls.4.1.6ASTMdesignationandyearofissue.

4.1.7Application(corrosionresistanceormagneticperme-ability).

4.1.8Grade(strengthlevel).

4.1.9Chemicalcomposition(stainlesssteelgrade).

6AnnualBookofASTMStandards,Vol03.01

7AvailablefromStandardizationDocumentsOrderDesk,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111–5094.8AvailablefromACIInternational,POBox9094,FarmingtonHills,MI48333.

4.1.10Heattreatmentcondition.

4.1.11Supplementaryrequirements(ifdesired).

NOTE3—Atypicalorderingdescriptionisasfollows:Formetricunits:10,000squaremetersofweldedwireforconcretereinforcement,3053305-MW653MW65,inflatsheets2438mmwideby4.6mmlonginsecuredbundlesforcraneorforklifttrucklifts.Forin-lbsunits:(100,000squarefeetofweldedwireforconcretereinforcement,12312-W103W10inflatsheets96in.wideby15ftlong)insecuredbundlesforcraneorforklifttrucklifts.TestingshallbeinaccordancewithTestMethodsA370.

NOTE4—Longitudinalwirescanbevariablyspaced.(Ex:3053305-MW653MW65,12312-W103W10orV3305-MD653MD65orV312-D103D10).SeetheTables1and2forwiresizes.

5.Materials

5.1Stainlesssteelwireforweldedwirereinforcementshallbecoldworked,eitherdrawnorrolledfromsteelrod,whichisrolledfromproperlyidentifiedheatsofmoldorstrandcaststeel.

5.2ColdworkedwireorrodusedinthemanufactureofstainlesssteelweldedreinforcementshallfollowthechemicalandphysicalrequirementsofSpecificationA276.

6.Manufacture

6.1Thewireorrodshallbeassembledbyautomaticmachinesorbyothersuitablemechanicalmeanswhichwillassureaccuratespacingandalignmentofallwiresofthefinishedweldedwirereinforcement.Thefinishedweldedwirereinforcementshallbefurnishedinflatorbentsheetsorinrollsasspecifiedbythepurchaser.

6.2Longitudinalandtransversewiresshallbesecurelyconnectedateveryintersectionbyaprocessofelectrical-resistanceweldingwhichemploystheprincipleoffusioncombinedwithpressure.

TABLE1DimensionalRequirementsforPlainWire—SIUnits

SizeNominalDiameter,

NominalArea,

NumberAmm

mm2MW52.505MW103.6010MW154.4015MW205.0020MW255.6025MW306.2030MW356.7035MW407.1040MW457.6045MW508.0050MW558.4055MW608.7060MW659.1065MW709.4070MW8010.1080MW9010.7090MW10011.30100MW12012.40120MW13012.90130MW20015.95200MW

290

19.22

290

AThistablerepresentsahardmetricationofthemostreadilyavailablesizesintheweldedwirereinforcementindustry.Table1shallbeusedinprojectsthataredesignedusingSIunits:Table2shallbeusedonprojectsdesignedusinginch-poundunits.Areasofwireshallbecheckedwiththemostefficientandreadilyavailablematerialfromproducers.Otherwiresizesareavailableandmanymanufacturerscanproducethemin1-mm2increments.

TABLE2DimensionalRequirementsforPlainWire—Inch-pound

Units

SizeNominalDiameter,

NominalArea,

NumberAin.

in2W0.50.0800.005W1.20.1240.012W1.40.1340.014W20.1600.020W2.50.1780.025W2.90.1920.029W3.50.2110.035W40.2260.040W4.50.2390.045W50.2520.050W5.50.2650.055W60.2760.060W80.3190.080W100.3570.100W120.3910.120W140.4220.140W160.4510.160W180.4790.180W200.5050.200W220.5290.220W240.5330.240W260.5750.260W280.5970.280W300.6180.300W310.6280.310W

45

0.757

0.450

AThistablerepresentsthemostreadilyavailablesizesintheweldedwirereinforcementindustryinsizesusinginch-poundunits.Areasofwireshallbecheckedwiththemostefficientandreadilyavailablematerialfromproducers.Otherwiresizesareavailableandmanymanufacturerscanproducethemin0.0015-in.2increments.

TABLE3BendTestRequirements—PlainWire

SizeNumberOfWireBendTest

MW45(W7)andsmallerBendaroundapinthediameterthatisequaltothediameterofthespecimen

LargerthanMW45(W7)

Bendaroundapinthediameterthatisequaltotwicethediameter(2d)ofthespecimen

6.3Wireofpropergradeandqualitywhenfabricatedinthemannerhereinrequiredshallresultinastrong,serviceableproducthavingsubstantiallysquareorrectangularopenings.It

shallbefabricatedandfinishedinaqualitymannerandconformtothisspecification.

6.4GeneralRequirementsforPlainWire:6.4.1PlainWireCriteria:

6.4.1.1Whenplainwireisorderedbysizenumber,therelationbetweensizenumber,diameter,andareashowninTables1and2shallapply.6.4.2Testing:

6.4.2.1Specimensformechanicalpropertiestestingshallbefullwiresectionsandshallbeobtainedfromendsofwirecoilsasdrawn.ThespecimensshallbeofsufficientlengthtoperformtestingdescribedinTestMethodsA370.

6.4.2.2Testspecimensfordeterminingweld-shearproper-tiesshallbeobtainedbycuttingfromthefinishedweldedwire,afullwidthsectionofsufficientlengthtoperformtestingdescribedinSpecificationA185.

6.4.2.3Measurementsforconformancetodimensionalcharacteristicsshallbemadeonfullsheetsorrolls.

6.4.2.4Ifanytestspecimenexhibitsobviousisolatedim-perfectionsnotrepresentativeoftheproduct,itmaybediscardedandanotherspecimensubstituted.

6.4.2.5ReductionofArea—Shallbedeterminedasde-scribedinTestMethodsandDefinitionsA370.ThewireshallconformtothereductionofarearequirementsinTables5and6.

6.4.2.6Onetensionandonebendtestshallbemadefromeach9000kg(10tons)orlessofeachsizeofwireorfractionthereof.

TABLE4PermissibleVariationinWireDiameter—PlainWire

SizeNumberNominalDiameter,

PermissibleVariationmetric(in-lbs.)mm(in.)PlusandMinus,

mm(in.)SmallerthanMW32(W5),Under6.4(0.252)0.08(0.003)MW32(W5)to6.4(0.252)to9.930.10(0.004)MW77(W12),incl(0.391),inclOvertoMW130(W20),Over9.93(0.391)0.15(0.006)

incl

to12.83(0.505),incl

OverMW130(W20)

Over12.83(0.505)

0.20(0.008)

TABLE5TensionTestRequirement—PlainWire

Tensilestrength,min,MPa(ksi)Yieldstrength,min,MPa(ksi)Reductionofarea,min.%

A550(80)485(70)30A6.5.1.4TheminimumaverageheightofthecenteroftypicaldeformationsbasedonthenominalwirediametersshowninTables7and8shallbeasfollows:

MinimumAverageHeightofDeformations,

PercentofNominalWireDiameter

MD19(D3)andfiner4CoarserthanMD19(D3)through41⁄2MD65(D10)

CoarserthanMD65(D10)5

WireSizes

Formaterialtestingover100ksi(690MPa)tensilestrength,thereductionof

areashallbenotlessthan25%.

TABLE6TensionTestRequirementPlainWire(Materialfor

WeldedWire)

SizeMW8(W1.2)

andLarger

Tensilestrength,min,MPa(ksi)Yieldstrength,min,MPa(ksi)Reductionofarea,min.%

ASmallerthanSizeMW8(W1.2)485(70)385(56)30A515(75)450(65)30AFormaterialtestingover100ksi(690MPa)tensilestrength,thereductionofareashallbenotlessthan25%.

6.5GeneralRequirementsforDeformedWire:6.5.1DeformationCriteria:

6.5.1.1Deformationsshallbespacedalongthewireatasubstantiallyuniformdistanceandshallbesymmetricallydisposedaroundtheperimeter.Thedeformationsonalllongi-tudinallinesofthewireshallbesimilarinsizeandshape.Aminimumof25%ofthetotalsurfaceareashallbedeformedbymeasurabledeformations.

6.5.1.2Deformedwireshallhavetwoormorelinesofdeformations.

6.5.1.3Theaveragelongitudinalspacingofdeformationsshallbenotlessthan3.5normorethan5.5deformationsper25mm(1in.)ineachlineofdeformationsonthewire.

6.5.1.5Thedeformationsshallbeplacedwithrespecttotheaxisofthewiresothattheincludedangleisnotlessthan45º;orifdeformationsarecurvilinear,theangleformedbythetransverseaxisofthedeformationandthewireaxisshallbenotlessthan45º.Wherethelineofdeformationsformsanincludedanglewiththeaxisofthewirefrom45ºto70ºinclusive,thedeformationsshallalternatelyreverseindirectiononeachside,orthoseononesideshallbereversedindirectionfromthoseontheoppositeside.Wheretheincludedangleisover70º,areversalindirectionisnotrequired.

6.5.1.6Theaveragespacingofdeformationsshallbedeter-minedbydividingameasuredlengthofthewirespecimenbythenumberofindividualdeformationsinanyonerowofdeformationsonanysideofthewirespecimens.Ameasuredlengthofthewirespecimenshallbeconsideredthedistancefromapointonadeformationtoacorrespondingpointonanyotherdeformationinthesamelineofdeformationsonthewire.6.5.1.7Theminimumaverageheightofdeformationsshallbedeterminedfrommeasurementsmadeonnotlessthantwotypicaldeformationsfromeachlineofdeformationsonthewire.Measurementsshallbemadeatthecenterofindentationsorraisedribs.

TABLE7DimensionalRequirementsforDeformedWireforConcreteReinforcementinSIUnits

NominalDimensions

DeformedWireSizeA,B,CMDMDMDMDMDMDMDMDMDMDMDMDMDMDMDMDMD

ABDeformationRequirements

Diameter,mmD5.606.206.707.107.608.008.408.709.109.4010.1010.7011.3012.4012.9015.9519.22

Cross-SectionalArea,mm2E253035404550556065708090100120130200290

MinimumAverage

Heightof

Deformations,mmF,G,H0.250.280.300.320.340.360.380.390.460.470.500.540.570.620.640.800.96

D(inX100)(D(D(D(D(D(D(D(D(D(D(D(D(D(D(D(D(D3.9)4.6)5.4)6.2)7.0)7.7)8.5)9.3)10.1)10.8)12.4)13.9)15.5)18.6)20.1)31.0)45.0)

2UnitMass,kg/m0.19620.23550.27470.31400.35320.39250.43170.47090.51020.54940.62790.70650.78490.94191.02041.57002.2700

253035404550556065708090100120130200290

Thenumberfollowingtheprefixindicatesthenominalcross-sectionalareaofthedeformedwireinsquaremillimeters.

Forsizesotherthanthoseshownabove,theSizeNumbershallbethenumberofsquaremillimetersinthenominalareaofthedeformedwirecrosssection,prefixedbythelettersMD.CThesesizesrepresentthemostreadilyavailablesizesintheweldedwirereinforcementindustry.Otherwiresizesareavailableandmanymanufacturerscanproducethemin1mm2increments.DThenominaldiameterofadeformedwireisequivalenttothediameterofaplainwirehavingthesamemasspermeterasthedeformedwire.EThecross-sectionalareaisbasedonthenominaldiameter.Theareainsquaremillimetersmaybecalculatedbydividingtheunitmassinkg/mmby7.849310-6(massof1mm3ofsteel)orbydividingtheunitmassinkg/mby0.007849(massofsteel1mmsquareand1mlong).FTheminimumaverageheightofthedeformationsshallbedeterminedfrommeasurementsmadeonnotlessthantwotypicaldeformationsfromeachlineofdeformationsonthewire.Measurementsshallbemadeatthecenterofindentationasdescribedin6.5.1.7.GSpacingofdeformationsshallnotbegreaterthan7.24mmnorlessthan4.62mmforallwiresizes.HSee6.5.1.6foraveragelongitudinalnumberofdeformationsperunitlength.

TABLE8DimensionalRequirementsforDeformedWireforConcreteReinforcementinin.-lbUnits

NominalDimensions

DeformedWireSizeA,B,CDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

ABDeformationRequirements

Cross-SectionalArea,in.E0.010.020.030.040.050.060.070.080.090.100.110.120.130.140.150.160.170.180.190.200.210.220.230.240.250.260.270.280.290.300.310.45

MinimumAverage

Heightof

Deformations,in.F,G,H0.00450.00630.00780.01010.01130.01240.01340.01430.01520.01600.01870.01950.02030.02110.02180.02250.02320.02390.02450.02520.02590.02650.02710.02770.02820.02880.02930.02990.03040.03090.03140.0379

UnitWeight,

lb/ft0.0340.0680.1020.1360.1700.2040.2380.2720.3060.3400.3740.4080.4420.4760.5100.5440.5780.6120.6460.6800.7140.7480.7820.8160.8500.8840.9180.9520.9861.0201.0541.530

Diameter,in.D0.1130.1590.1950.2250.2520.2760.2990.3190.3380.3560.3740.3900.4060.4220.4370.4510.4650.4780.4910.5040.5170.5290.5410.5530.5640.5750.5860.5970.6080.6180.6280.757

1234567891011121314151617181920212223242526272829303145

Thenumberfollowingtheprefixindicatesthenominalcross-sectionalareaofthedeformedwireinsquareinchesmultipliedby100.

Forsizesotherthanthoseshownabove,theSizeNumbershallbethenumberofonehundredthsofasquareinchinthenominalareaofthedeformedwirecrosssection,prefixedbytheD.CThesesizesrepresentthemostreadilyavailablesizesintheweldedwirereinforcementindustry.Otherwiresizesareavailableandmanymanufacturerscanproducethemin1mm2increments.DThenominaldiameterofadeformedwireisequivalenttothediameterofaplainwirehavingthesameweightperfootasthedeformedwire.EThecross-sectionalareaisbasedonthenominaldiameter.Theareainsquareinchesmaybecalculatedbydividingtheweightinpoundsby0.2833(weightof1in.3ofsteel)orbydividingtheweightperlinealfootofspecimeninpoundsby3.4(weightofsteel1in.squareand1footlong).FTheminimumaverageheightofthedeformationsshallbedeterminedfrommeasurementsmadeonnotlessthantwotypicaldeformationsfromeachlineofdeformationsonthewire.Measurementsshallbemadeatthecenterofindentationorbetweentworaisedribsasdescribedin6.5.1.7.GSpacingofdeformationsshallnotbegreaterthan0.285in.norlessthan0.182in.forallwiresizes.HSee6.5.1.6foraveragelongitudinalnumberofdeformationsperunitlength.

6.5.2MechanicalPropertyRequirementsforDeformedWire:

6.5.2.1Testing:

(1)WhentestedasdescribedinTestMethodsandDefini-tionsA370,thematerial,exceptasspecifiedin6.5.2.1.2shallconformtothetensilepropertyrequirementsinTable9,basedonnominalareaofwire.

TABLE9TensionTestRequirements—DeformedWire

MPa(psi)min

TensilestrengthYieldstrength

585(85000)515(75000)

(2)TheyieldstrengthshallbedeterminedasdescribedinTestMethodsandDefinitionsA370atanextensionof0.5%ofgagelength.FordeterminingtheyieldstrengthuseaClassB-1extensometerasdescribedinE83.

(3)Formaterialtobeusedinthefabricationofweldedwire,thetensileandyieldstrengthpropertiesshallconformtotherequirementsgiveninTable6,basedonnominalareaofthewire.

(4)Materialsshallbemeasuredatextensionunderloadandshallnotexhibitadefiniteyieldpointasevidencedbyadistinctdropofthebeamorhaltinthegageofthetestingmachinepriortoreachingultimatetensileload.Thepurchasermay,athis

option,acceptthisfeatureassufficientevidenceofcompliancewiththespecifiedminimumyieldstrengthtestscoveredinthisspecification.

(5)BendTest—Thebendtestspecimenshallbebentatroomtemperaturethrough90ºwithoutcrackingontheoutsideofthebentportion,asprescribedinTable11.

6.5.3PermissibleVariationinMass(Weight):

6.5.3.1Thepermissiblevariationinmass(weight)ofanydeformedwireis66%ofitsnormalmass(weight).Thetheoreticalmass(weights)showninTable7andTable8,orsimilarcalculationsonunlistedsizes,shallbeusedtoestablishthevariation.

6.5.4Quality,FinishandAppearance:

6.5.4.1Thewireshallbefreeofdetrimentalimperfectionsandshallhaveasmoothsurfaceof3.2µm(125µin.)orbetter.See10.1also.

7.MechanicalPropertyRequirements—DeformedWire,ExceptasNotedforPlainWire(MaterialforWeldedWire)

7.1Tensile—Wirefortheproductionofweldedwire,de-formed,isdescribedinSection6.Tensiletestsshallbemadeonwirecutfromtheweldedwireandtestedeitheracrossorbetweenthewelds;nolessthan50%shallbeacrosswelds.Tensiletestsacrossaweldshallhavetheweldedjointlocatedapproximatelyatthecenterofthewirebeingtestedandthecrosswireformingtheweldedjointshallextendapproximately25mm(1in.)beyondeachsideoftheweldedjoint.

7.1.1TheyieldstrengthshallbedeterminedasdescribedinTestMethodsandDefinitionsA370atanextenstionof0.5%ofgagelength.Themanufacturerisnotrequiredtotestforyieldstrength,butisresponsibleforsupplyingaproductthatwillmeetthestipulatedlimitwhentestedinconformancewiththeprovisionsof13.3.FordeterminingtheyieldstrengthuseaClassB-1extensometerasdescribedinPracticeE83.Theextensometershouldberemovedfromthespecimenafteryieldstrengthhasbeendetermined.

7.2BendTest—ThewireshallwithstandthebendtestasdescribedinTable11andshallbeperformedonaspecimentakenfrombetweenthewelds.

7.3WeldShearStrength—TheweldshearstrengthbetweenlongitudinalandtransversewiresshallbetestedasdescribedinSection8.Forstructuralapplications,theminimumaverageshearvalueshallnotbelessthan241newtons(35000pounds-force)multipliedbythenominalareaofthelargerwireinsquaremillimeters(inches),wherethesmallerwireisnotlessthansizeMD26(D4)andhasanareaof40%ormoreoftheareaofthelargerwire.

7.3.1Forotherthanstructuralapplications,weldedwirehavingarelationshipoflargerandsmallerwiresotherthanthosecoveredin7.4shallmeetanaverageweldshearstrength

TABLE10TensionTestRequirements—DeformedWire(Material

forWeldedWire)

MPa(psi)min

Tensilestrength550(80000)Yieldstrength

485(70000)

TABLE11BendTestRequirements—DeformedWire

SizeNumberofWireBendTest

MD40(D6)andsmallerBendaroundapinthediameterthatisequaltotwice(2d)thediameterofthespecimen

CoarserthanMD40(D6)

Bendaroundapinthediameterthatisequaltofourtimes(4d)thediameterofthespecimen

requirementofnotlessthan3.6kN(800lbf)providedthatthesmallerwireisnotsmallerthanMD26(D4).

7.3.2Weld-sheartestsfordeterminationofconformancetotherequirementsof7.4shallbeconductedusingafixtureasdescribedinSection8.

7.3.3Fourweldsselectedatrandomfromthespecimendescribedin11.2shallbetestedforweldshearstrength.Thetransversewireofeachtestspecimenshallextendapproxi-mately25mm(1in.)oneachsideofthelongitudinalwire.Thelongitudinalwireofeachtestspecimenshallbeofsuchlengthbelowthetransversewiresoastobeadequatelyengagedbythegripsofthetestingmachine.Itshallbeofsuchlengthabovethetransversewirethatitsendshallbeabovethecenterlineoftheupperbearingofthetestingdevice.

7.3.4Thematerialshallbedeemedtoconformtotherequirementsforweldshearstrengthiftheaverageofthefoursamplescomplieswiththevaluestipulatedin7.3.Iftheaveragefailstomeettheprescribedvalue,alltheweldsacrossthespecimenshallthenbetested.Theweldedwireshallbeacceptableiftheaverageofallweldsheartestvaluesacrossthespecimenmeetstheprescribedminimumvalue.8.WeldShearTestApparatusandMethods

8.1Astheweldsinweldedwirecontributetothebondingandanchoragevalueofthewiresinconcrete,itisimperativethattheweldacceptancetestsbemadeinajigwhichwillstresstheweldinamannersimilartowhichitisstressedinconcrete.Inordertoaccomplishthis,theverticalwireinthejigmustbestressedinanaxisclosetoitscenterline.Alsothehorizontalwiremustbeheldcloselytotheverticalwire,andinthesamerelativeposition,soastopreventrotationofthehorizontalwire.Whentheweldedwireisdesignedwithdifferentwiresizes,thelargerdiameterwireisthe“verticalwire”whentested(seeFig.1).

8.2Fig.1showsthedetailsofatypicaltestingjigtogetherwithtwoanvils,whichmakeitpossibletotestweldsforwireupto19.05mm(3⁄4in.)indiameter.Thistestingjigcanbeusedinmosttensiontestingmachinesandshouldbehunginaballandsocketarrangementatthecenterofthemachine.This,orasimilarlyeffectivefixturedesignedonthesameprinciple,shallbeacceptable.

8.3Testspecimensshallbeinsertedthroughthenotchintheanvilusingthesmallestnotchavailableinwhichtheverticalwirewillfitloosely.Theverticalwireshallbeincontactwiththesurfaceofthefreerotatingrollerswhilethehorizontalwireshallbesupportedbytheanviloneachsideoftheslot.Thebottomjawsofthetestingmachineshallgripthelowerendoftheverticalwireandtheloadshallbeappliedatarateofstressingnottoexceed686MPa/min,(100000psi/min).

FIG.1WeldedWireWeldTester

9.Dimensions

9.1Width—Thewidthofweldedwireshallbeconsideredtobethecenter-to-centerdistancebetweenoutsidelongitudinalwires.Thepermissiblevariationshallnotexceed13mm(1⁄2in.)greaterorlessthanthespecifiedwidth.Incasethewidthofflatsheetsorrollsisspecifiedastheoverallwidth(tip-to-tiplengthofcrosswires),thewidthshallnotvarymorethan625mm(61in.)fromthespecifiedwidth.Whenmeasurementsinvolveaconvolutedwire,themeasurementshallbemadetotheapproximatecenterofthesinusoidalwaveshape.

9.2Length—Theoveralllengthofflatsheets,measuredonanywire,mayvary625mm(61in.),or1%,whicheverisgreater.

9.3Overhangofthetransversewiresshallnotprojectbeyondthecenterlineofeachlongitudinaledgewiremorethanadistanceof25mm(1in.),unlessotherwisespecified.Whentransversewiresarespecifiedtoprojectaspecificlengthbeyondthecenterlineofalongitudinaledgewire,thepermissiblevariationshallnotexceed13mm(1⁄2in.)greaterorlessthanthespecifiedlength.

9.4Thepermissiblevariationinweightofanywireinthefinishedweldedwireshallconformtothetolerancesprescribedforthewirebeforefabricationinthisspecification,withthefollowingexceptions:

9.4.1Unlessotherwiseprecludedbythepurchaser,themanufacturershallbepermittedtoapplyover-sizedwire(notunder-sized).Inallcaseswheresuchoversteelingispracticed,theproducershallidentifytheweldedwirewiththestyleoriginallyordered.

9.5Theaveragespacingofwiresshallbesuchthatthetotalnumberofwirescontainedinasheetorrollisequaltoorgreaterthanthatdeterminedbythespecificspacing,butthecenter-to-centerdistancebetweenindividualwiresmayvarynotmorethan6mm(1⁄4in.)fromthespecifiedspacing.Itisunderstoodthatsheetsofweldedwireofthespecifiedlength

maynotalwayscontainanidenticalnumberoftransversewiresand,therefore,mayhavevariouslengthsoflongitudinaloverhang.10.Quality

10.1Wireofpropergradeandquality,whenfabricatedinthemannerrequiredbythisspecification,shallresultinastrong,serviceableproducthavingsubstantiallysquareorrectangularopenings.Itshallbeproperlyfabricatedandmustconformtothisspecification.Ifthestainlesssteelweldedwireisexposedtoweathering,itmaynotnecessarilyhaveabrightorshinyappearance.Itmaybedullorgrayishwithareasofoxidizedflashatelectricresistanceweldedjunctions.Weath-eredoxidefilmsonwireswithgoodsurfacefinishdonotaffectthecorrosionresistanceandthelowornon-magneticpropertiesofthereinforcement,thereforetheseconditionsshallnotbecauseforrejection.11.Sampling

11.1Specimensformechanicalpropertiestestingshallbeobtainedbycuttingfromthefinishedweldedwireafullwidthsection,ofsufficientlengthtoperformtestingdescribedin7.1and7.2.

11.2Testspecimensfordeterminingweld-shearpropertiesshallbeobtainedbycuttingfromthefinishedweldedwire,afullwidthsection,ofsufficientlengthtoperformtestingdescribedin7.3.3.

11.3Measurementsforconformancetodimensionalchar-acteristicsshallbemadeonfullsheetsorrolls.

11.4Ifanytestspecimenexhibitsobviousimperfections,itmaybediscardedandanotherspecimensubstituted.12.NumberofTests

12.1Onetestforconformancetotensilestrengthandbendrequirementsshallbemadeforeach7000m2(75000ft2)ofweldedwireorremainingfractionthereof.Fortestingpriortofabrication,onetestforeach18Mg(20tons)ofwireshallbemade.

12.2Onetestforconformancetoweldshearstrengthrequirementshallbemadeforeach28000m2(300000ft2)orremainingfractionthereof.13.Inspection

13.1Theinspectorrepresentingthepurchasershallhavefreeentryatalltimes,whileworkonthecontractofthepurchaserisbeingperformed,toallpartsofthemanufacturer’smillthatconcernthemanufactureofthematerialordered.Themanufacturershallaffordtheinspectorallreasonablefacilitiestoassurethatthematerialisbeingfurnishedinaccordancewiththisspecification.

13.2Exceptforyieldstrength,alltestsandinspectionsshallbemadeattheplaceofmanufacturepriortoshipment,unlessotherwisespecified.Suchtestshallbesoconductedasnottointerfereunnecessarilywiththeoperationofthemill.

13.3Themanufacturermaysatisfycompliancewithyieldstrengthrequirementsofthisspecificationbytestinginitscertifiedlaboratoryorarecognizedindependentlaboratory,or

thepurchaser’srepresentativemaymakethetestatthemillifsuchtestingdoesnotunnecessarilyinterferewithmillopera-tions.

13.4ForU.S.GovernmentProcurementOnly—Exceptasotherwisespecifiedinthecontract,thecontractorisresponsiblefortheperformanceofallinspectionandtestrequirementsspecifiedherein.Exceptasotherwisespecifiedinthecontract,thecontractormayuseitsownfacilitiesormayuseothersuitablefacilitiesfortheperformanceoftheinspectionandtestrequirementsspecifiedherein,unlessdisapprovedbythepur-chaseratthetimeofpurchase.Thepurchasershallhavetherighttoperformanyoftheinspectionsandtestsatthesamefrequencyassetforthinthisspecificationwheresuchinspec-tionsaredeemednecessarytoassurethatmaterialconformstoprescribedrequirements.

14.RejectionandRetest

14.1Materialthatdoesnotmeettherequirementsofthisspecificationmayberejected.Unlessotherwisespecified,anyrejectionshallbereportedtothemanufacturerwithinfivedaysfromthetimeofselectionoftestspecimens.

14.2Incaseaspecimenfailstomeetthetensionorbendtest,thematerialshallnotberejecteduntiltwoadditionalspecimenstakenfromotherwiresinthesamesheetorrollhavebeentested.Thematerialshallbeconsideredasmeetingthespecificationinrespecttoanyprescribedtensileproperty,providedthetestedaverageforthethreespecimens,includingthespecimenoriginallytested,isequaltoorexceedstherequiredminimumfortheparticularpropertyinquestionandprovidedfurtherthatnoneofthethreespecimensdevelopslessthan80%oftherequiredminimumforthetensilepropertyinquestion.Thematerialshallbeconsideredasmeetingthisspecificationinrespecttobendtestrequirements,providedbothadditionalspecimenssatisfactorilypasstheprescribedbendtest.

14.3Weldedjointsshallwithstandnormalshippingandhandlingwithoutbecomingbroken,butthepresenceofbrokenwelds,regardlessofcause,shallnotconstitutecauseforrejectionunlessthenumberofbrokenweldspersheetexceeds1%ofthetotalnumberofjointsinasheet,orifthematerialisfurnishedinrolls,1%ofthetotalnumberofjointsin14m2(150ft2)ofweldedwireand,furthermore,providednotmorethanonehalfthepermissiblemaximumnumberofbrokenweldsarelocatedonanyonewire.

14.4Intheeventofrejectionbecauseoffailuretomeettheweldshearrequirements,fouradditionalspecimensshallbetakenfromfourdifferentsheetsorrollsandtestedinaccor-dancewithSection8.Iftheaverageofalltheweldsheartestsperformeddoesnotmeettherequirement,thematerialshallberejected.

14.5Intheeventofrejectionbecauseoffailuretomeettherequirementsfordimensions,theamountofmaterialrejectedshallbelimitedtothoseindividualsheetsorrollswhichfailtomeetthisspecification.

14.6Dullgraysurface,surfaceseams,orsurfaceirregulari-tiessuchasoutlinedinSection10shallnotbecauseforrejectionprovidedtheminimumweldedwiredimensions,cross-sectionalarea,tensileproperties,andweldshearstrengthofahandwire-brushedtestspecimenarenotlessthanthe

requirementsofthisspecification.Theheightofdeformationsabovetheminimumheightrequirementsshallnotbecauseforrejection.

14.7Rehearing—Rejectedmaterialsshallbepreservedforaperiodofatleasttwoweeksfromthedateofinspection,duringwhichtimethemanufacturermaymakeclaimforarehearingandretesting.

15.Certification

15.1Ifoutsideinspectioniswaived,amanufacturer’scer-tificationthatthematerialhasbeenmanufacturedinaccor-dancewithandmeetstherequirementsofthisspecificationshallbethebasisofacceptanceofthematerial.Thecertifica-tionshallincludethespecificationnumber,year-dateofissue,andrevisionletter,ifany.

15.2Thisconformanceispredicatedupontestingandac-ceptanceofwirepriortofabrication,coupledwithrandomsheartestingduringproduction.Becauseofwarehousingandstockingproblems,noeffortsarenormallytakentosupplyactualtestdataonmaterialshipped.Ifthisisdeemedessential,outsideinspectionshouldbeutilized.

15.3WhenSupplementS1ofSpecificationsA82orA496isspecifiedforthematerial,testresultsforyieldstrength,tensilestrength,andbendtestsshallbereported(S1.3.1ofSpecificationA82,S1.3.1ofSpecificationA496).

16.PackagingandPackageMarking

16.1Thesizeofthewire,ASTMdesignation,andnameormarkofthemanufacturershallbemarkedonatagsecurelyattachedtoeachcoilofwire.

16.2Unlessotherwisespecified,packaging,markingandloadingforshipmentshallbeinaccordancewithPracticesA700.

16.3Whenweldedwireisfurnishedinflatsheets,itshallbeassembledinbundlesofconvenientsizecontainingnotmorethan150sheetsandsecurelyfastenedtogether.

16.4Whenweldedwireisfurnishedinrolls,eachrollshallbesecuredsoastopreventunwindingduringshippingandhandling.

16.5Eachbundleofflatsheetsandeachrollshallhaveattachedtheretoasuitabletagbearingthenameofthemanufacturer,descriptionofthematerialandsuchotherinformationasmaybespecifiedbythepurchaser.

16.6Whenspecifiedinthecontractororder,andfordirectprocurementbyordirectshipmenttotheU.S.government,whenLevelAisspecified,preservation,packaging,andpack-ingshallbeinaccordancewiththeLevelArequirementofMIL-STD-163.

16.7Whenspecifiedinthecontractororder,andfordirectprocurementbyordirectshipmenttotheU.S.government,markingforshipment,inadditiontorequirementsspecifiedinthecontractororder,shallbeinaccordancewithMIL-STD-129forU.S.militaryagenciesandinaccordancewithFed.Std.No.123forU.S.governmentcivilagencies.

17.Keywords

17.1concretereinforcement;corrosionresistance;deforma-tions;magneticproperties;reinforcedconcrete;reinforcingsteels;stainlesssteelweldedwirereinforcement;stainlesswire;steelwire;weldedwirereinforcement

SUPPLEMENTARYREQUIREMENTS

S1.HighStrengthWire

S1.1Scope:

S1.1.1Thissupplementdelineatesonlythosedetailedthatarerelativetohigh-strengthwireandtothemechanicalrequirementsforwirehavingpropertiesgenerallyasdescribedinthisspecification.

NoteS1.1—Buildingcodes,forexample,ACI318permittheuseofreinforcementwithayieldstrengthupto550MPa(80,000psi)indesign.Forcompatibilitywiththecodes’designprovisionsforhigh-strengthreinforcement,thissupplementprescribesrequirementsforthemechanicalpropertiesofwirethatexceedtheminimumvaluesforyieldstrengthandtensilestrengthinTables5and6,Table9,andTable10ofthisspecification.

S1.2MechanicalPropertyRequirements:

S1.2.1Minimumyieldstrengthshallbespecifiedinthepurchaseorderinincrementsof17.5MPa(2500psi).Whentestedtheyieldstrengthshallbedeterminedatanextensionunderloadof0.35%.

NoteS1.2—Toconformtothelimitonyieldstrengthinbuildingcodes,theminimumyieldstrengthspecifiedinthepurchaseordershallbe550MPa(80,000psi).

S1.2.2Minimumtensilestrengthshallbe70MPa(10,000psi)greaterthantheminimumspecifiedyieldstrength.

NoteS1.3—Typicalorderentrylineforminimumyieldstrengthis500MPa(72,500psi).

S1.2.3Theminimumreductionofareaforplainwireonlyshallbe30%.Formaterialtestingover690MPa(100000psi)tensilestrength,thereductionofareaforplainwireonlyshallnotbelessthan25%.S1.3Certification:

S1.3.1Certificationformaterialproducedtothissupple-mentshallincludeareportofthetestresultsforyieldstrength,tensilestrength,reductionofarea(forplainwire),andbendtests.FrequencyoftestingshallconformtoSection12ofthisspecification.

S2.MagneticPermeabilityTesting

S2.1Supplementaryrequirement(S2)isprovidedasanoptionalissue.Itshallapplyonlywhenspecifiedbythepurchaser.Whenlowpermeabilitymaterialisdesired,itshallspecifythatthematerialbetestedinaccordancewithtestmethodsTestMethodsA342.Thespecificlimitsofmagneticpermeabilityshallbeamatterofagreementbetweenthemanufacturerandthepurchaser.

ASTMInternationaltakesnopositionrespectingthevalidityofanypatentrightsassertedinconnectionwithanyitemmentionedinthisstandard.Usersofthisstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,areentirelytheirownresponsibility.Thisstandardissubjecttorevisionatanytimebytheresponsibletechnicalcommitteeandmustbereviewedeveryfiveyearsandifnotrevised,eitherreapprovedorwithdrawn.YourcommentsareinvitedeitherforrevisionofthisstandardorforadditionalstandardsandshouldbeaddressedtoASTMInternationalHeadquarters.Yourcommentswillreceivecarefulconsiderationatameetingoftheresponsibletechnicalcommittee,whichyoumayattend.IfyoufeelthatyourcommentshavenotreceivedafairhearingyoushouldmakeyourviewsknowntotheASTMCommitteeonStandards,attheaddressshownbelow.ThisstandardiscopyrightedbyASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.Individualreprints(singleormultiplecopies)ofthisstandardmaybeobtainedbycontactingASTMattheaboveaddressorat610-832-9585(phone),610-832-9555(fax),orservice@astm.org(e-mail);orthroughtheASTMwebsite(www.astm.org).