1、Designation: A249/A249M 16a Used in USDOE-NE StandardsStandard Specification forWelded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes1This standard is issued under the fixed designation A249/A249M; the number immediately following the designation indicates the yearof origi
2、nal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department o
3、f Defense.1. Scope*1.1 This specification2covers nominal-wall-thicknesswelded tubes and heavily cold worked welded tubes made fromthe austenitic steels listed in Table 1, with various gradesintended for such use as boiler, superheater, heat exchanger, orcondenser tubes.1.2 Grades TP304H, TP309H, TP3
4、09HCb, TP310H,TP310HCb, TP316H, TP321H, TP347H, and TP348H aremodifications of Grades TP304, TP309S, TP309Cb, TP310S,TP310Cb, TP316, TP321, TP347, and TP348, and are intendedfor high-temperature service such as for superheaters andreheaters.1.3 The tubing sizes and thicknesses usually furnished toth
5、is specification are18 in. 3.2 mm in inside diameter to 12 in.304.8 mm in outside diameter and 0.015 to 0.320 in. 0.4 to8.1 mm, inclusive, in wall thickness. Tubing having otherdimensions may be furnished, provided such tubes complywith all other requirements of this specification.1.4 Mechanical pro
6、perty requirements do not apply totubing smaller than18 in. 3.2 mm in inside diameter or 0.015in. 0.4 mm in thickness.1.5 Optional supplementary requirements are provided and,when one or more of these are desired, each shall be so statedin the order.1.6 The values stated in either inch-pound units o
7、r SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem may not be exact equivalents; therefore, each systemshall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance wi
8、th thestandard. The inch-pound units shall apply unless the “M”designation of this specification is specified in the order.1.7 The following safety hazards caveat pertains only to thetest method described in the Supplementary Requirements ofthis specification. This standard does not purport to addre
9、ss allof the safety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. A specific warningstatement is given in Supplementary Req
10、uirement S7, NoteS7.1.2. Referenced Documents2.1 ASTM Standards:3A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and StripA1016/A1016M Spe
11、cification for General Requirements forFerritic Alloy Steel, Austenitic Alloy Steel, and StainlessSteel TubesE112 Test Methods for Determining Average Grain SizeE213 Practice for Ultrasonic Testing of Metal Pipe andTubingE273 Practice for Ultrasonic Testing of the Weld Zone ofWelded Pipe and TubingE
12、527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)2.2 ASME Boiler and Pressure Vessel Code:Section VIII42.3 Other Standard:SAE J1086 Practice for Numbering Metals and Alloys(UNS)51This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Ste
13、el and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved Sept. 1, 2016. Published September 2016. Originallyapproved in 1941. Last previous edition approved in 2016 as A249/A249M 16.DOI: 10.1520/A0249_A0249M-1
14、6A.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-249 in Section II of that Code.3For 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
15、to the standards Document Summary page onthe ASTM website.4Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale
16、, PA 15096-0001, http:/www.sae.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE1ChemicalRequirements,%AGradeComposition,%UNSDesignationBCarbonManganesePhosphoro
17、usSulfurSiliconChromiumNickelMolybdenumNitrogenCCopperOtherTP201S201000.155.507.50.0600.0301.0016.018.03.55.5.0.25.TP201LNS201530.036.47.50.0450.0150.7516.017.54.05.0.0.100.251.00.TP202S202000.157.510.00.0600.0301.0017.019.04.06.0.0.25.TPXM-19S209100.064.06.00.0450.0301.0020.523.511.513.51.503.000.2
18、00.40.NbG0.100.30V0.100.30TPXM-29S240000.0811.514.50.0600.0301.0017.019.02.33.7.0.200.40.TP304S304000.082.000.0450.0301.0018.020.08.011.0.TP304LDS304030.0302.000.0450.0301.0018.020.08.012.0.TP304HS304090.040.102.000.0450.0301.0018.020.08.011.0.S304150.040.060.800.0450.0301.002.0018.019.09.010.0.120.
19、18.Ce0.030.08TP304NS304510.082.000.0450.0301.0018.020.08.011.0.0.100.16.TP304LNDS304530.0302.000.0450.0301.0018.020.08.011.0.0.100.16.TP305S305000.122.000.0450.0301.0017.019.011.013.0.S306150.160.242.000.0300.0303.24.017.019.513.516.0.S308150.050.100.800.0400.0301.402.0020.022.010.012.0.0.140.20.Ce0
20、.030.08TP309SS309080.082.000.0450.0301.0022.024.012.015.0.TP309HS309090.040.102.000.0450.0301.0022.024.012.015.0.GradeComposition,%UNSDesignationBCarbonManganesePhosphorousSulfurSiliconChromiumNickelMolybdenumNitrogenCCopperOther.S306010.0150.500.800.0300.0135.05.617.018.017.018.00.200.050.35.TP309C
21、bS309400.082.000.0450.0301.0022.024.012.016.0.Nb10xC-1.10TP309HCbS309410.040.102.000.0450.0301.0022.024.012.016.0.Nb10xC-1.10TP310SS310080.082.000.0450.0301.0024.026.019.022.0.TP310HS310090.040.102.000.0450.0301.0024.026.019.022.0.TP310CbS310400.082.000.0450.0301.0024.026.018.022.0.Nb10xC-1.10TP310H
22、CbS310410.040.102.000.0450.0301.0024.026.019.022.0.Nb10xC-1.10.S310500.0302.000.0300.0150.4024.026.021.023.02.003.000.100.16.S312540.0201.000.0300.0100.8019.520.517.518.56.06.50.180.250.501.00.S312660.0302.004.000.0350.0201.0023.025.021.024.05.26.20.350.601.002.50W1.502.50.S312770.0203.000.0300.0100
23、.5020.523.026.028.06.58.00.300.400.501.50.TP316S316000.082.000.0450.0301.0016.018.010.014.02.003.00.TP316LDS316030.0302.000.0450.0301.0016.018.010.014.02.003.00.TP316HS316090.040.102.000.0450.0301.0016.018.010.014.02.003.00.TP316NS316510.082.000.0450.0301.0016.018.010.013.02.003.000.100.16.TP316LNDS
24、316530.0302.000.0450.0301.0016.018.010.013.02.003.000.100.16.S316550.0302.000.0450.0151.0019.521.58.09.50.501.500.140.251.00.TP317S317000.082.000.0450.0301.0018.020.011.015.03.04.0.TP317LS317030.0302.000.0450.0301.0018.020.011.015.03.04.0.GradeComposition,%UNSDesignationBCarbonManganesePhosphorousSu
25、lfurSiliconChromiumNickelMolybdenumNitrogenCCopperOther.S317250.0302.000.0450.0301.0018.020.013.517.54.05.00.20.S317260.0302.000.0450.0301.0017.020.014.517.54.05.00.100.20.S317270.0301.000.0300.0301.0017.519.014.516.53.84.50.150.212.84.0.S320500.0301.500.0350.0201.0022.024.020.023.06.06.80.210.320.4
26、0.A249/A249M 16a2TABLE1Continued.S320530.0301.000.0300.0101.0022.024.024.026.05.06.00.170.22.TP321S321000.082.000.0450.0301.0017.019.09.012.0.0.10.Ti5(C+N)-0.70TP321HS321090.040.102.000.0450.0301.0017.019.09.012.0.0.10.Ti5(C+N)-0.70.S326150.072.000.0450.0304.806.0016.519.519.022.00.301.50.1.502.50.S
27、326540.0202.04.00.0300.0050.5024.025.021.023.07.08.00.450.550.300.60.S332280.040.081.000.0200.0150.3026.028.031.0333.0.Nb0.601.00Ce0.050.10Al0.025.S345650.0305.07.00.0300.0101.0023.025.016.018.04.05.00.400.60.Nb0.10TP347S347000.082.000.0450.0301.0017.019.09.012.0.Nb10xC-1.10TP347HS347090.040.102.000
28、.0450.0301.0017.019.09.012.0.Nb8xC-1.10TP348S348000.082.000.0450.0301.0017.019.09.012.0.(Nb+Ta)10xC-1.10Ta0.10Co0.20TP348HS348090.040.102.000.0450.0301.0017.019.09.012.0.(Nb+Ta)8xC-1.10Ta0.10Co0.20.S350450.060.101.500.0450.0151.0025.029.032.037.0.0.75Al0.150.60Ti0.150.60TPXM-15S381000.082.000.0300.0
29、301.502.5017.019.017.518.5.S388150.0302.000.0400.0205.56.513.015.015.017.00.751.50.0.751.50Al0.30maxAlloy20N080200.0702.000.0450.0351.0019.021.032.038.02.003.00.3.004.00Nb8Cmin.to1.00max.N083670.0302.000.0400.0301.0020.022.023.525.56.07.00.180.250.75.800N088000.101.500.0450.0151.0019.023.030.035.0.0
30、.75Al0.150.60Ti0.150.60FeE39.5min800HN088100.050.101.500.0450.0151.0019.023.030.035.0.0.75Al0.150.60Ti0.150.60FeE39.5minA249/A249M 16a3TABLE1Continued.N088110.050.101.500.0450.0151.0019.023.030.035.0.0.75Al0.250.60FTi0.250.60FFeE39.5min.N089260.0202.000.0300.0100.5019.021.024.026.06.07.00.150.250.50
31、1.50.N089040.0202.000.0400.0301.0019.023.023.028.04.05.00.101.002.00.AMaximum,unlessotherwiseindicated.BNewdesignationestablishedinaccordancewithPracticeE527andSAEJ1086.CThemethodofanalysisfornitrogenshallbeamatterofagreementbetweenthepurchaserandmanufacturer.DForsmalldiameterorthinwalls,orboth,wher
32、emanydrawingpassesarerequired,acarbonmaximumof0.040%isnecessaryinGradesTP304LandTP316L.Smalloutsidediametertubesaredefinedasthoselessthan0.500in.12.7mminoutsidediameterandlightwallarethoselessthan0.049in.1.2mminminimumwallthickness.EIronshallbedeterminedarithmeticallybydifferenceof100minusthesumofth
33、eotherspecifiedelements.F(Al+Ti)=0.85to1.20.GThetermNiobium(Nb)andColumbium(Cb)arealternatenamesforthesameelement.A249/A249M 16a43. Ordering Information3.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Such requi
34、rements may include, but are notlimited to, the following:3.1.1 Quantity (feet, metres, or number of lengths),3.1.2 Name of material welded tubes (WLD) or heavily coldworked tubes (HCW),3.1.3 Grade (Table 1),3.1.4 Size (outside diameter and nominal wall thickness),3.1.5 Length (specific or random),3
35、.1.6 Optional requirements (13.6),3.1.7 Test report required (see Certification Section ofSpecification A1016/A1016M),3.1.8 Specification designation, and3.1.9 Special requirements and any supplementary require-ments selected.3.1.9.1 If Supplementary Requirement S7 is specified, in-clude weld decay
36、ratio per S11.1.1.4. General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A1016/A1016M, unless otherwise providedherein.5. Manufacture5.1 The welded (WLD) tubes shall be made from flat-rolledsteel by
37、an automatic welding process with no addition of fillermetal.5.1.1 Subsequent to welding and prior to final heattreatment, the tubes shall be cold worked either in both weldand base metal or in weld metal only. The method of coldworking may be specified by the purchaser. When cold drawn,the purchase
38、r may specify the minimum amount of reduction incross-sectional area or wall thickness, or both.5.1.2 Heavily cold worked (HCW) tubes shall be made byapplying cold working of not less than 35 % reduction in bothwall and weld to a welded tube prior to the final anneal. Nofiller metal shall be used in
39、 the making of the weld. Prior tocold working, the weld shall be 100 % radiographically in-spected in accordance with the requirements of ASME Boilerand Pressure Vessel Code, Section VIII, Division 1, latestrevision, Paragraph UW 51.6. Heat Treatment6.1 All material shall be furnished in the heat-tr
40、eatedcondition in accordance with the requirements of Table 2.6.2 A solution annealing temperature above 1950 F 1065C may impair the resistance to intergranular corrosion aftersubsequent exposure to sensitizing conditions in TP309HCb,TP310HCb, TP321, TP321H, TP347, TP347H, TP348, andTP348H. When spe
41、cified by the purchaser, a lower temperaturestabilization or re-solution anneal shall be used subsequent tothe initial high temperature solution anneal (see SupplementaryRequirement S4).6.3 N08020 shall be supplied in the stabilization treatmentcondition.7. Chemical Composition7.1 The heat analysis
42、shall conform to the requirements asto chemical composition given in Table 1.8. Product Analysis8.1 An analysis of either one length of flat-rolled stock orone tube shall be made for each heat. The chemical composi-tion thus determined shall conform to the requirements given inSection 7.8.2 A produc
43、t analysis tolerance of Table A1.1 in Specifi-cation A480/A480M shall apply. The product analysis toler-ance is not applicable to the carbon content for material with aspecified maximum carbon of 0.04 % or less.8.3 If the original test for product analysis fails, retests oftwo additional lengths of
44、flat-rolled stock or tubes shall bemade. Both retests for the elements in question shall meet therequirements of the specification; otherwise all remainingmaterial in the heat or lot (See 13.9.1) shall be rejected or, atthe option of the producer, each length of flat-rolled stock ortube may be indiv
45、idually tested for acceptance. Lengths offlat-rolled stock or tubes that do not meet the requirements ofthe specification shall be rejected.9. Tensile Requirements9.1 The material shall conform to the tensile propertiesprescribed in Table 3.10. Hardness Requirements10.1 The tubes shall have a Rockwe
46、ll hardness number notexceeding the values specified in Table 3.11. Reverse-Bend Test Requirement11.1 A section 4 in. 100 mm minimum in length shall besplit longitudinally 90 on each side of the weld. The sampleshall then be opened and bent around a mandrel with amaximum thickness of four times the
47、wall thickness, with themandrel parallel to the weld and against the original outsidesurface of the tube. The weld shall be at the point of maximumbend. There shall be no evidence of cracks, or of overlapsresulting from the reduction in thickness of the weld areas bycold working. When the geometry o
48、r size of the tubing make itdifficult to test the sample as a single piece, the sample may besectioned into smaller pieces provided a minimum of 4 in. ofweld is subjected to reverse bending.NOTE 1The reverse bend test is not applicable when the specified wallis 10 % or more of the specified outside diameter, or the wall thickness is0.134 in. 3.4 mm or greater, or the outside diameter size is less than0.375 in. 9.5 mm. Under these conditions the reverse flattening test ofSpecification A1016/A1016M shall apply.12. Grain Size Requirement12.
