ASME+SEC+II+C+SFA-5.28-2004

SPECIFICATION FOR LOW-ALLOY STEEL ELECTRODES AND RODS FOR GAS SHIELDED ARCWELDINGSFA-5.28(Identical with AWS Specification A5.28-96.)1.ScopeThis specification prescribes requirements for the clas-sification of low alloy steel electrodes(solid,composite stranded,and composite metal cored)and rods(solid)for gas metal arc welding(GMAW),gas tungsten arc welding (GTAW),and plasma arc welding(PAW).PART A—GENERAL REQUIREMENTS2.Classification2.1The solid electrodes(and rods)covered by this specification are classified according to the chemical com-position of the electrode,as specified in Table1,and the mechanical properties of the weld metal,as specified in Tables3and4.The composite metal cored and stranded electrodes covered by this specification are classified according to the chemical composition and mechanical properties of the weld metal,as specified in Tables2,3, and4,and the shielding gas employed.2.2Electrodes and rods under one classification shallnot be classified under any other classification in this specification,except that ER80S-D2may also be classi-fied as ER90S-D2,provided that classification require-ments for both are met.2.3The welding electrodes and rods classified under this specification are intended for gas shielded arc weld-ing,but that is not to prohibit their use with any other process(or any other shielding gas or combination of shielding gases)for which they are found suitable.6113.AcceptanceAcceptance1of the electrodes and rods shall be in accordance with the provisions of ANSI/AWS A5.01, Filler Metal Procurement Guidelines.24.CertificationBy affixing the AWS specification and classification designations to the packaging or the classification to the product,the manufacturer certifies that the product meets the requirements of this specification.35.Units of Measure and Rounding-OffProcedure5.1U.S.customary units are the standard units of measure in this specification.The SI units are given as equivalent values to the U.S.customary units.The stan-dard sizes and dimensions in the two systems are not identical and,for this reason,conversion from a standard size or dimension in one system will not always coincide with a standard size or dimension in the other.Suitable conversions,encompassing standard sizes of both,can be made,however,if appropriate tolerances are applied in each case.5.2For the purpose of determining conformance with this specification,an observed or calculated value shall 1See Section A3,Acceptance(in the Annex),for further information concerning acceptance,testing of the material shipped,and ANSI⁄AWS A5.01,Filler Metal Procurement Guidelines.2AWS Standards can be obtained from the American Welding Society, 550N.W.LeJeune Road,Miami,FL33126.3See Section A4,Certification,(in the Annex)for further information concerning certification and the testing called for to meet this requirement.Copyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003Not for Resale, 07/08/2005 01:57:36 MDTNo reproduction or networking permitted without license from IHSSFA-5.282004SECTION IIT A B L E 1C H E M I C A L C O M P O S I T I O N R E Q U I R E M E N T S F O R S O L I D E L E C T R O D E S A N D R O D SW e i g h t P e r c e n t a ,bO t h e r A W S U N S E l e m e n t s C l a s s i fic a t i o n cN u m b e r dCM n S i P S N i C r M o V T i Z r A l C u eT o t a lC a r b o n -M o l y b d e n u m S t e e l E l e c t r o d e s a n d R o d sE R 70S -A 1K 112350.121.300.30–0.700.0250.0250.20—0.40–0.65————0.350.50C h r o m i u m -M o l y b d e n u m S t e e l E l e c t r o d e s a n d R o d sE R 80S -B 2K 209000.07–0.120.40–0.700.40–0.700.0250.0250.201.20–1.500.40–0.65————0.350.50E R 70S -B 2L K 205000.050.40–0.700.40–0.700.0250.0250.201.20–1.500.40–0.65————0.350.50E R 90S -B 3K 309600.07–0.120.40–0.700.40–0.700.0250.0250.202.30–2.700.90–1.20————0.350.50E R 80S -B 3L K 305600.050.40–0.700.40–0.700.0250.0250.202.30–2.700.90–1.20————0.350.50E R 80S -B 6fS 502800.100.40–0.700.500.0250.0250.64.50–6.000.45–0.65————0.350.50E R 80S -B 8gS 504800.100.40–0.700.500.0250.0250.58.00–10.50.8–1.2————0.350.50E R 90S -B 9h ,i S 504820.07–0.131.250.15–0.300.0100.0101.008.00–9.500.80–1.100.15–0.25——0.040.200.50N i c k e l S t e e l E l e c t r o d e s a n d R o d sE R 80S -N i 1K 112600.121.250.40–0.800.0250.0250.80–1.100.150.350.05———0.350.50E R 80S -N i 2K 212400.121.250.40–0.800.0250.0252.00–2.75——————0.350.50E R 80S -N i 3K 312400.121.250.40–0.800.0250.0253.00–3.75——————0.350.50M a n g a n e s e -M o l y b d e n u m S t e e l E l e c t r o d e s a n d R o d sE R 80S -D 2jK 109450.07–0.121.60–2.100.50–0.800.0250.0250.15—0.40–0.60————0.500.50E R 90S -D 2O t h e r L o w -A l l o y S t e e l E l e c t r o d e s a n d R o d sE R 100S -1K 108820.081.25–1.800.20–0.550.0100.0101.40–2.100.300.25–0.550.050.100.100.100.250.50E R 110S -1K 210150.091.40–1.800.20–0.550.0100.0101.90–2.600.500.25–0.550.040.100.100.100.250.50E R 120S -1K 210300.101.40–1.800.25–0.600.0100.0102.00–2.800.600.30–0.650.030.100.100.100.250.50E R X X S -G —N o t S p e c i fie d kN O T E S :a .T h e fil l e r m e t a l s h a l l b e a n a l y z e d f o r t h e e l e m e n t s f o r w h i c h v a l u e s a r e s h o w n i n t h i s t a b l e .I f t h e p r e s e n c e o f o t h e r e l e m e n t s i s i n d i c a t e d i n t h e c o u r s e o f t h i s w o r k ,t h e a m o u n t o f t h o s e e l e m e n t s s h a l l b e d e t e r m i n e d t o e n s u r e t h a t t h e i r t o t a l (e x c l u d i n g i r o n )d o e s n o t e x c e e d t h e l i m i t s s p e c i fie d f o r “O t h e r E l e m e n t s ,T o t a l .”b .S i n g l e v a l u e s a r e m a x i m u m .c .T h e s u f fix e s B 2,N i 1,e t c .,d e s i g n a t e t h e c h e m i c a l c o m p o s i t i o n o f t h e e l e c t r o d e a n d r o d c l a s s i fic a t i o n .d .S A E /A S T M U n i fie d N u m b e r i n g S y s t e m f o r M e t a l s a n d A l l o y s .e .C o p p e r d u e t o a n y c o a t i n g o n t h e e l e c t r o d e o r r o d p l u s t h e c o p p e r c o n t e n t o f t h e fil l e r m e t a l i t s e l f ,s h a l l n o t e x c e e d t h e s t a t e d l i m i t .f .S i m i l a r t o f o r m e r c l a s s E R 502i n A W S S p e c i fic a t i o n A 5.9-81.g .S i m i l a r t o f o r m e r c l a s s E R 505i n A W S S p e c i fic a t i o n A 5.9-81.h .N i o b i u m (C o l u m b i u m )0.02–0.10%i .N i t r o g e n 0.03–0.07%j .T h i s c o m p o s i t i o n w a s f o r m e r l y c l a s s i fie d E 70S -1B i n A W S S p e c i fic a t i o n A 5.18-69.k .I n o r d e r t o m e e t t h e r e q u i r e m e n t s o f t h e “G ”c l a s s i fic a t i o n ,t h e e l e c t r o d e m u s t h a v e a m i n i m u m o f o n e o r m o r e o f t h e f o l l o w i n g :0.50p e r c e n t n i c k e l ,0.30p e r c e n t c h r o m i u m ,o r 0.20p e r c e n t m o l y b d e n u m .C o m p o s i t i o n s h a l l b e r e p o r t e d ;t h e r e q u i r e m e n t s a r e t h o s e a g r e e d t o b y t h e p u r c h a s e r a n d s u p p l i e r .612Copyright ASME InternationalProvided by IHS under license with ASMELicensee=Westinghouse Newington, NH/5945819003 Not for Resale, 07/08/2005 01:57:36 MDTNo reproduction or networking permitted without license from IHS--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---PART C —SPECIFICATIONS FOR WELDING RODS,ELECTRODES,AND FILLER METALSSFA-5.28T A B L E 2C H E M I C A L C O M P O S I T I O N R E Q U I R E M E N T S F O R W E L D M E T A L F R O M C O M P O S I T E E L E C T R O D E S aW e i g h t P e r c e n t b ,cO t h e r A W S U N S E l e m e n t s C l a s s i fic a t i o n dN u m b e r eCM n S i P S N i C r M o V T iZ r A l C uT o t a lM a n g a n e s e -M o l y b d e n u m W e l d M e t a lE 90C -D 2W 192300.121.00–1.900.900.0250.030——0.40–0.60————0.350.50C h r o m i u m -M o l y b d e n u m W e l d M e t a lE 70C -B 2L W 521300.050.40–1.000.25–0.600.0250.0300.201.00–1.500.40–0.65————0.350.50E 80C -B 2W 520300.05–0.120.40–1.000.25–0.600.0250.0300.201.00–1.500.40–0.65————0.350.50E 80C -B 3L W 531300.050.40–1.000.25–0.600.0250.0300.202.00–2.500.90–1.20————0.350.50E 90C -B 3W 530300.05–0.120.40–1.000.25–0.600.0250.0300.202.00–2.500.90–1.20————0.350.50N i c k e l S t e e l W e l d M e t a lE 80C -N i 1W 210300.121.500.900.0250.0300.80–1.10—0.30————0.350.50E 70C -N i 2W 220300.081.250.900.0250.0301.75–2.75——————0.350.50E 80C -N i 2W 220300.121.500.900.0250.0301.75–2.75——————0.350.50E 80C -N i 3W 230300.121.500.900.0250.0302.75–3.75——————0.350.50O t h e r L o w -A l l o y W e l d M e t a lE X X C -GN o t S p e c i fie d fN O T E S :a .C h e m i c a l r e q u i r e m e n t s f o r c o m p o s i t e e l e c t r o d e s a r e b a s e d o n a n a l y s i s o f t h e i r w e l d m e t a l i n t h e a s -w e l d e d c o n d i t i o n a n d u s i n g t h e s h i e l d i n g g a s s p e c i fie d i n T a b l e 3.b .T h e w e l d m e t a l s h a l l b e a n a l y z e d f o r t h e s p e c i fic e l e m e n t s f o r w h i c h v a l u e s a r e s h o w n i n t h i s t a b l e .I f t h e p r e s e n c e o f o t h e r e l e m e n t s i s i n d i c a t e d i n t h e c o u r s e o f t h i s w o r k ,t h e a m o u n t o f t h e s e e l e m e n t s s h a l l b e d e t e r m i n e d t o e n s u r e t h a t t h e i r t o t a l (e x c l u d i n g i r o n )d o e s n o t e x c e e d t h e l i m i t s p e c i fie d f o r “O t h e r E l e m e n t s ,T o t a l .”c .S i n g l e v a l u e s s h o w n a r e m a x i m u m s .d .S o l i d e l e c t r o d e s a r e g e n e r a l l y r e c o m m e n d e d f o r g a s t u n g s t e n a r c w e l d i n g (G T A W )o r p l a s m a a r c w e l d i n g (P A W ).e .S A E /A S T M U n i fie d N u m b e r i n g S y s t e m f o r M e t a l s a n d A l l o y s .f .I n o r d e r t o m e e t t h e r e q u i r e m e n t s o f t h e G c l a s s i fic a t i o n ,t h e e l e c t r o d e m u s t h a v e a s a m i n i m u m o f o n e o r m o r e o f t h e f o l l o w i n g :0.50p e r c e n t n i c k e l ,0.30p e r c e n t c h r o m i u m ,o r 0.20p e r c e n t m o l y b d e n u m .C o m p o s i t i o n s h a l l b e r e p o r t e d ;t h e r e q u i r e m e n t s a r e t h o s e a g r e e d t o b y t h e p u r c h a s e r a n d s u p p l i e r .613Copyright ASME InternationalProvided by IHS under license with ASMELicensee=Westinghouse Newington, NH/5945819003 Not for Resale, 07/08/2005 01:57:36 MDTNo reproduction or networking permitted without license from IHS--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---SFA-5.282004SECTION IITABLE3TENSION TEST REQUIREMENTSNOTES:a.The use of a particular shielding gas for classification purposes shall not be construed to restrict the use of shielding gas mixtures.Afillermetal tested with other gas blends,such as Argon/O2or Argon/CO2may result in weld metal having different strength and elongation.Classification with other gas blends shall be as agreed upon between the purchaser and supplier.b.Yield strength at0.2%offset and elongation in2in.(51mm)gage length.c.Postweld heat-treated condition in accordance with Table7.d.Shielding gas shall be as agreed to between purchaser and supplier.e.Not specified(As agreed to between purchaser and supplier).f.These classifications were previously ER80S-B2,E80C-B2,ER90S-B3L,and E90C-B3L respectively in AWS A5.28–79.The strength levelshave been adjusted downward as shown,in order to accurately reflect the capability of the classification’s chemical composition ranges.614Copyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003No reproduction or networking permitted without license from IHSNot for Resale, 07/08/2005 01:57:36 MDTPART C—SPECIFICATIONS FOR WELDING RODS,ELECTRODES,AND FILLER METALS SFA-5.28TABLE4IMPACT TEST REQUIREMENTSAWS Average Impact Strength a TestingClassification(minimum)ConditionER70S-A1ER70S-B2LE70C-B2LER80S-B2E80C-B2ER80S-B3LNot Required—E80C-B3LER90S-B3E90C-B3ER80S-B6ER80S-B8ER90S-B9ER80S-Ni120ft·lbf at−50°F(27J@−46°C)As-WeldedE80C-Ni1ER80S-Ni2E70C-Ni220ft·lbf at−80°F(27J@−62°C)PWHT bE80C-Ni2ER80S-Ni320ft·lbf at−100°F(27J@−73°C)PWHT bE80C-Ni3ER80S-D2ER90S-D220ft·lbf at−20°F(27J@−29°C)As-WeldedE90C-D2ER100S-1ER110S-150ft·lbf at−60°F(68J@−51°C)As-WeldedER120S-1ERXXXS-G As agreed between—EXXC-G purchaser and supplierNOTES:a.Both the highest and lowest of thefive test values obtained shallbe disregarded in computing the impact strength.For classifications requiring20ft-lbf(27J);Two of the remaining three values shall equal or exceed20ft-lbf(27J);one of the three remaining values may be lower than20ft-lbf(27J)but not lower than15ft-lbf(20J).The average of the three shall not be less thanthe20ft-lbf(27J)specified.For classifications requiring50ft-lbf(68J):Two of the remaining three values shall equal or exceed50ft-lbf(68J);one of the three remaining values may be lower than50ft-lbf(68J)but not lower than40ft-lbf(54J).The average of the three shall not be less thanthe50ft-lbf(68J)specified.b.Postweld heat treated in accordance with Table7.be rounded to the nearest1000psi for tensile and yield strength,and to the“nearest unit”in the last right-hand place offigures used in expressing the limiting valuefor other quantities in accordance with the rounding-off method given in ASTM E29,Recommended Practice615for Using Significant Digits in Test Data to Determine Conformance with Specifications.4PART B—TESTS,PROCEDURES,AND REQUIREMENTS6.Summary of Tests6.1The tests required for each classification are speci-fied in Table5.The purpose of these tests is to determine the chemical composition,the mechanical properties,and soundness of the weld metal.The base metal for the weld test assemblies,the welding and testing procedures to be employed,and the results required are given in Sections 8through12.6.2The optional test for diffusible hydrogen in Sec-tion13,Diffusible Hydrogen Test,is not required for classification[see note(a)of Table5].7.RetestIf the results of any test fail to meet the requirement, that test shall be repeated twice.The results of both retests shall meet the requirement.Specimens for retest may be taken from the original test assembly or from one or two new test assemblies.For chemical analysis,retest need be only for those specific elements that failed to meet the test requirement.If the results of one or both retests fail to meet the requirement,the material under test shall be considered as not meeting the requirements of this specification for that classification.In the event that,during preparation or after completion of any test,it is clearly determined that prescribed or proper procedures were not followed in preparing the weld test assembly or test specimen(s),or in conducting the test,the test shall be considered invalid,without regard to whether the test was actually completed,or whether test results met,or failed to meet,the requirement,that test shall be repeated,following proper prescribed proce-dures.In this case,the requirement for doubling the num-ber of test specimens does not apply.8.Weld Test Assemblies8.1At least one weld test assembly is required,and two may be required(depending on the electrode—solid as opposed to composite—and the manner in which the sample for chemical analysis is taken),as specified in Table5.They are as follows:4ASTM specifications may be obtained from the American Society for Testing and Materials(ASTM),100Barr Harbor Drive,Consho-hocken,PA19428-2959.Copyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003Not for Resale, 07/08/2005 01:57:36 MDTNo reproduction or networking permitted without license from IHS--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---SFA-5.282004SECTION IITABLE5REQUIRED TESTSChemical AnalysisAWS Diffusible Classification Electrode Weld Metal Radiographic Test Tension Test Impact Test Hydrogen TestSolid ElectrodesER70S-A1ER70S-B2LER80S-B2ER80S-B3LRequired Not Required Required Required Not Required aER90S-B3ER80S-B6ER80S-B8ER90S-B9ER80S-Ni1ER80S-Ni2Required Not Required Required Required Required aER80S-Ni3ER80S-D2Required Not Required Required Required Required aER90S-D2ER100S-1ER110S-1Required Not Required Required Required Required aER120S-1ERXXS-G Required b Not Required Required Required Not Required aComposite Metal Cored ElectrodesE70C-B2LE80C-B2Not Required Required Required Required Not Required aE80C-B3LE90C-B3E70C-Ni2E80C-Ni1Not Required Required Required Required Required aE80C-Ni2E80C-Ni3E90C-D2Not Required Required Required Required Required a EXXC-G Not Required Required b Required Required Not Required a NOTES:a.Optional diffusible hydrogen test is required only when specified by the puchaser and the manufacturer puts the diffusible hydrogen designatoron the label(See A2.2and A8.2in the Annex).b.To be reported.See A7.15in the Annex.(1)The groove weld in Fig.1for mechanical proper-ties and soundness of the weld metal for both composite and solid electrodes(2)The weld pad in Fig.2for chemical analysis ofthe weld metal from composite stranded and composite metal cored electrodesThe sample for chemical analysis of weld metal from composite electrodes may be taken from the reduced section of the fractured all-weld-metal tension test speci-men or from the corresponding location in the groove616weld in Fig.1,thereby avoiding the need to make a weld pad.Alternatively,the sample from the groove weld may be taken from any location in the weld metal above the tension test specimen.In case of dispute,the weld pad in Fig.2shall be the referee method.8.2Preparation of each weld test assembly shall be as prescribed in8.3,8.4,and8.5.The base metal for each assembly shall be as required in Table6,and shall meet the requirements of the ASTM specification shownCopyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003Not for Resale, 07/08/2005 01:57:36 MDTNo reproduction or networking permitted without license from IHS--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---PART C—SPECIFICATIONS FOR WELDING RODS,ELECTRODES,AND FILLER METALS SFA-5.28FIG.1GROOVE WELD TEST ASSEMBLY FOR MECHANICAL PROPERTIES AND SOUNDNESS617Copyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003No reproduction or networking permitted without license from IHSNot for Resale, 07/08/2005 01:57:36 MDTSFA-5.282004SECTIONIIFIG.2PAD FOR CHEMICAL ANALYSIS OF WELD METAL FROM COMPOSITE ELECTRODESthere,or an equivalent specification.Testing of the assem-bly shall be as prescribed in 9.2,9.3,and Sections 10through 12.8.3Groove Weld8.3.1For all classifications,a test assembly shall be prepared and welded as specified in Fig.1,using base metal of the appropriate type specified in Table 6,and the preheat and interpass temperature specified in Table 7.The electrode used shall be 0.045in.(1.1mm)or 1⁄16in.(1.6mm)size (or the size that the manufacturer produces that is closest to one of these,if these sizes are not produced).Welding shall be in the flat position,and the assembly shall be restrained (or preset)during welding to prevent warpage in excess of 5degrees.An assembly that has warped more than 5degrees from plane shall be dis-carded.It shall not be straightened.The test assembly shall be tack welded,and welding shall begin at the preheat temperature specified in Table 7.This interpass temperature shall be maintained for the remainder of the weld.Should it be necessary to interrupt welding,the assembly shall be allowed to cool in still air to room temperature.The assembly shall be preheated to the temperature shown in Table 7before welding is resumed.When welding has been completed and the assembly has cooled,the assembly shall be prepared and618tested as specified in Sections 10,11,and 12in the as-welded or postweld heat-treated condition,as specified in Tables 3and 4.8.3.2When required,the test assembly shall be postweld heat-treated before removal of mechanical test specimens.This postweld heat treatment may be done either before or after the radiographic examination.8.3.2.1The furnace shall be at a temperature not higher than 600°F (320°C)when the test assembly is placed in it.The heating rate,from that point to the specified holding temperature in Table 7,shall not exceed 400°F per hour (220°C per hour).8.3.2.2The test assembly shall be maintained at the temperature specified in Table 7for 1hour (−0,+15minutes).8.3.2.3When the one hour holding time has been completed,the assembly shall be allowed to cool in the furnace to a temperature below 600°F (320°C)at a rate not exceeding 350°F (190°C)per hour.The assembly may be removed from the furnace at any temperature below 600°F (320°C)and allowed to cool in still air to room temperature.Testing of the assembly shall be as specified in Sections 10through 12.8.4Weld Pad.A weld pad shall be prepared using composite stranded and composite metal cored electrodesCopyright ASME InternationalProvided by IHS under license with ASMELicensee=Westinghouse Newington, NH/5945819003 Not for Resale, 07/08/2005 01:57:36 MDTNo reproduction or networking permitted without license from IHS--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---PART C—SPECIFICATIONS FOR WELDING RODS,ELECTRODES,AND FILLER METALS SFA-5.28TABLE6BASE METAL FOR TEST ASSEMBLIESAWS Classification Base Metal ASTM Standard a Base Metal UNS Number bER70S-B2LE70C-B2LA387Grade11K11789ER80S-B2E80C-B2ER80S-B3LE80C-B3LA387Grade22K21590ER90S-B3E90C-B3ER80S-B6A387Grade5S50200ER80S-B8A387Grade9S50400ER90S-B9A387Grade91S50460A516Grade60,65,or70K02100,K02403,or K02700 ER80S-Ni1A537Class1or2K12437,K21703,or K22103A203Grade A or B,or HY-80steelJ42015E80C-Ni1in accordance with MIL-S-16216E70C-Ni2A203Grade A or B or HY-80steelER80S-Ni2K22103,K21703,or J42015in accordance with MIL-S-16216E80C-Ni2ER80S-Ni3A203Grade D or E or HY-80steel K31718or K32018E80C-Ni3in accordance with MIL-S-16216J42015ER70S-A1ASTM A36,A285Grade C,K02600,ER80S-D2A515Grade70,or K03101,E90C-D2A516Grade70K02700ER90S-D2ER100S-1ER100S-GE100C-GER110S-1HY-80or HY100steelER110S-G J42015or J42240in accordance with MIL-S-16216E110C-GER120S-1ER120S-GE120C-GERXXS-GSee note aEXXC-GNOTES:a.For any weld metal classification in this specification,ASTM A36,A285Grade C,A515Grade70,or A516Grade70may be used.Inthat case,the groove faces and the contacting face of the backing shall be buttered,as shown in Figure1,using the electrode being classifiedor an electrode of the same weld metal composition as that specified for the electrode being tested,or using an electrode of the specifiedcomposition classified in another AWS low-alloy steelfiller metal specification.Alternately,for the indicated weld metal classification,thecorresponding base metals may be used for weld test assemblies without buttering.In case of dispute,buttered A36steel shall be the refereematerial.b.ASTM/SAE Unified Numbering System for Metals and Alloys.619--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---Copyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003No reproduction or networking permitted without license from IHSNot for Resale, 07/08/2005 01:57:36 MDTSFA-5.282004SECTION IITABLE7PREHEAT,INTERPASS,AND POSTWELD HEAT TREATMENT TEMPERATURESPreheat and InterpassTemperature a PWHT Temperature a AWS Classification°F°C°F°CER70S-A1ER80S-B2ER70S-B2L275–325135–1651150±25620±15E80C-B2E70C-B2LER90S-B3ER80S-B3L375–425185–2151275±25690±15 E90C-B3E80C-B3LER80S-B6350–450177–2321375±25745±15ER80S-B8400–500205–2601375±25745±15ER90S-B9300–500150–2601375±25745±15ER80S-Ni2ER80S-Ni3E70C-Ni2275–325135–1651150±25620±15E80C-Ni2E80C-Ni3ER80S-D2ER90S-D2E90C-D2ER80S-Ni1275–325135–165None b None b E80C-Ni1ER100S-1ER110S-1ER120S-1ERXXXS-GConditions as agreed upon between supplier and purchaserEXXC-GNOTES:a.These temperatures are specified for testing under this specification and are not to be considered as recommendations for preheat,interpass,and postweld heat treatment in production welding.The requirements for production welding must be determined by the user.They may ormay not differ from those called for here.b.These classifications are normally used in the as-welded condition.620Copyright ASME InternationalProvided by IHS under license with ASME Licensee=Westinghouse Newington, NH/5945819003No reproduction or networking permitted without license from IHSNot for Resale, 07/08/2005 01:57:36 MDTas shown in Fig.2,except when,as permitted in8.1,the sample for analysis is taken from the groove weld(Fig.1)or the fractured tension test specimen.Base metal of any convenient size which will satisfy the minimum requirements of Fig.2,and is of a type specified in Table 6,shall be used as the base for the weld pad.The surface of the base metal on which thefiller metal is deposited shall be clean.The pad shall be welded in theflat position with multiple layers to obtain undiluted weld metal(4 layers minimum thickness).The electrode size shall be 0.045in.(1.1mm)or1⁄16in.(1.6mm),or the size that the manufacturer produces that is closest to one of these, if these sizes are not produced.The preheat temperature shall not be less than60°F(16°C)and the interpass tem-perature shall not exceed that specified in Table7.Any slag shall be removed after each pass.The pad may be quenched in water between passes(temperature of the water is not specified).The dimensions of the completed pad shall be as shown in Fig.2.Testing of this assembly shall be as specified in9.2and9.3.The results shall meet the requirements of9.4.9.Chemical Analysis9.1A sample of the solid electrode or rod shall be prepared for chemical analysis.Solidfiller metal,when analyzed for elements that are present in a coating(copper flashing,for example),shall be analyzed without remov-ing the coating.When thefiller metal is analyzed for elements other than those in the coating,the coating shall be removed if its presence affects the results of the analy-sis for the other elements.9.2Composite stranded and metal cored electrodes shall be analyzed in the form of weld metal,notfiller metal.The sample for analysis shall be taken from weld metal obtained with the electrode and a shielding gas as specified in Tables2and3.The sample may be taken from the weld pad prepared in accordance with8.4,from an area of the groove weld as specified in8.1,or from the reduced section of the fractured tension test specimen. In case of dispute,the weld pad is the referee method. The top surface of the pad described in8.4and shown in Fig.2shall be removed and discarded.A sample for analysis shall be obtained from the underlying metal,no closer than3⁄8in.(9.5mm)to the surface of the base metal in Fig.2,by any appropriate mechanical means. The sample shall be free of slag.When the sample is taken from the groove weld or the reduced section of the fractured tension test specimen, that material shall be prepared for analysis by any suitable mechanical means.9.3The sample obtained as specified in9.1or9.2 shall be analyzed by accepted analytical methods.The referee method shall be ASTM E350,Standard Method for Chemical Analysis of Carbon Steel,Low Alloy Steel, Silicon Electrical Steel,Ingot Iron and Wrought Iron.9.4The results of the analysis shall meet the require-ments of Table1for solid electrode or Table2for com-posite electrodes for the classification of electrode under test.10.Radiographic Test10.1The groove weld described in8.3.1and shown in Fig.1shall be radiographed to evaluate the soundness of the weld metal.In preparation for radiography,the backing shall be removed,and both surfaces of the weld shall be machined or ground smooth.Both surfaces of the test assembly,in the area of the weld,shall be smooth enough to avoid difficulty in interpreting the radiograph.10.2The weld shall be radiographed in accordance with ASTM E142,Standard Method for Controlling Quality of Radiographic Testing.The quality level of inspection shall be2-2T.10.3The soundness of the weld metal meets the requirements of this specification if the radiograph shows no cracks,no incomplete fusion,and no rounded indica-tions in excess of those permitted by the radiographic standards in Fig.3.In evaluating the radiograph,1in. (25mm)of the weld on each end of the test assembly shall be disregarded.10.3.1A rounded indication is an indication(on the radiograph)whose length is no more than3times its width.Rounded indications may be circular,elliptical, conical,or irregular in shape,and they may have tails. The size of a rounded indication is the largest dimension of the indication,including any tail that may be present. The indication may be of porosity or slag.Indications whose largest dimension does not exceed1⁄64in.(0.4 mm)shall be disregarded.Test assemblies with indica-tions larger than the largest indications permitted in the radiographic standards(Fig.3)do not meet the require-ments of this specification.11.Tension Test11.1One all-weld-metal tension test specimen shall be machined from the groove weld described in8.3.1and shown in Fig.1as required in Table5.The dimensions of the specimen shall be as shown in Fig.4.11.2Before testing,the specimen may be aged at200 to220°F(93to104°C)for up to48hours,then allowed to cool to room temperature.Refer to A8.3for a discus-sion on the purpose of aging treatments.--````,,`,`,,,````,``,,,`,``,-`-`,,`,,`,`,,`---。