ASTM A335-21a.pdf

《ASTM A335-21a.pdf》由会员分享，可在线阅读，更多相关《ASTM A335-21a.pdf（11页珍藏版）》请在得力文库 - 分享文档赚钱的网站上搜索。

1、Designation: A335/A335M21aStandard Specification forSeamless Ferritic Alloy-Steel Pipe for High-TemperatureService1This standard is issued under the fixed designation A335/A335M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the

2、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 of Defense.1. Scope*1.1 This specification2cove

3、rs nominal wall and minimumwall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall besuitable for bending, flanging (vanstoning), and similar form-ing operations, and for fusion welding. Selection will dependupon design, service conditi

4、ons, mechanical properties, andhigh-temperature characteristics.1.2 Several grades of ferritic steels (see Note 1) are covered.Their compositions are given in Table 1.NOTE1Ferritic steels in this specification are defined as low- andintermediate-alloy steels containing up to and including 10 % chrom

5、ium.1.3 Supplementary requirements (S1 to S8) of an optionalnature are provided. Supplementary requirements S1 throughS6 call for additional tests to be made, and when desired, shallbe so stated in the order together with the number of such testsrequired.1.4 The values stated in either SI units or i

6、nch-pound 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-conforman

7、ce with thestandard. The inch-pound units shall apply unless the “M”designation of this specification is specified in the order.NOTE2The dimensionless designator NPS (nominal pipe size) hasbeen substituted in this standard for such traditional terms as “nominaldiameter,” “size,” and “nominal size.”1

8、.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to

9、Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A999/A999M Specification for General Requirements forAlloy and Stainless Steel PipeE92 Test Methods for Vickers Hardness and Knoop Hard-ness of Metallic MaterialsE213 Practice for Ultrasonic Testing of Metal Pipe andTubingE309 Practice

10、 for Eddy Current Examination of Steel Tubu-lar Products Using Magnetic SaturationE381 Method of Macroetch Testing Steel Bars, Billets,Blooms, and ForgingsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E570 Practice for Flux Leakage Examination of Ferromag-netic St

11、eel Tubular Products2.2 ASME Standard:B36.10M Welded and Seamless Wrought Steel Pipe2.3 AWS Specifications4A5.5/A5.5M Specification for Low-Alloy Steel Electrodesfor Shielded Metal Arc WeldingA5.23/A5.23M Specification for Low-Alloy Steel Elec-trodes and Fluxes for Submerged Arc WeldingA5.28/A5.28M

12、Specification for Low-Alloy Steel Elec-trodes for Gas Shielded Arc Welding1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current editi

13、on approved Nov. 1, 2021. Published November 2021. Originallyapproved in 1951. Last previous edition approved in 2021 as A335/A335M 21.DOI: 10.1520/A0335_A0335M-21A.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-335 in Section II of that Code.3For referenced AST

14、M standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from American Welding Society (AWS), 550 NW LeJeune Rd.,Miami, FL 331

15、26, http:/www.aws.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 StatesThis international standard was developed in accordance with internationally recognized principles o

16、n standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1TABLE 1 Chemical RequirementsGradeUNSDesigna-tionAComposition, %CarbonMan-ganesePh

17、os-phorus,maxSulfur,maxSiliconChromiumMolybde-numOthersP1K115220.100.200.300.800.0250.0250.100.50. . .0.440.65. . .P2K115470.100.200.300.610.0250.0250.100.300.500.810.440.65. . .P5K415450.15 max0.300.600.0250.0250.50 max4.006.000.450.65. . .P5bK515450.15 max0.300.600.0250.0251.002.004.006.000.450.65

18、. . .P5cK412450.12 max0.300.600.0250.0250.50 max4.006.000.450.65. . .BP9K909410.15 max0.300.600.0250.0250.251.008.0010.000.901.10. . .P11K115970.050.150.300.600.0250.0250.501.001.001.500.440.65. . .P12K115620.050.150.300.610.0250.0250.50 max0.801.250.440.65. . .P15K115780.050.150.300.600.0250.0251.1

19、51.65. . .0.440.65. . .P21K315450.050.150.300.600.0250.0250.50 max2.653.350.801.06. . .P22K215900.050.150.300.600.0250.0250.50 max1.902.600.871.13. . .P23K407120.040.100.100.600.030 max0.010 max0.50 max1.902.600.050.30V 0.200.30NbF0.020.08B 0.00100.006N 0.015 maxAl 0.030 maxW 1.451.75Ni 0.40 maxTi 0

20、.0050.060Ti/N $ 3.5CP24K307360.050.100.300.700.0200.0100.150.452.202.600.901.10V 0.200.30Ti 0.060.10N 0.012 maxAl 0.02 maxB 0.00150.007P36K210010.100.170.801.200.030 max0.025 max0.250.500.30 max0.250.50Ni 1.00-1.30Cu 0.50-0.80NbF0.015-0.045V 0.02 maxN 0.02 maxAl 0.050 maxP91Type 1K915600.080.120.300

21、.600.0200.0100.200.508.009.500.851.05V 0.180.25N 0.0300.070Ni 0.40 maxAl 0.02 maxNbF0.060.10Ti 0.01 maxZr 0.01 maxP91Type 2K91560VHeat0.080.120.300.50D0.020D0.005D0.200.40D8.009.50D0.851.05Heat 0.180.25Product0.070.130.801.05Product 0.160.27Ni 0.20 maxDAl 0.020 maxDN 0.0350.070DN/Al ratio $4.0NbFHea

22、t 0.060.10Product 0.050.11Ti 0.01 maxDZr 0.01 maxDSn 0.010 maxDSb 0.003 maxDAs 0.010 maxDB 0.001 maxDW 0.05 maxDCu 0.10 maxDP92K924600.070.130.300.600.0200.0100.50 max8.509.500.300.60V 0.150.25N 0.030.07Ni 0.40 maxAl 0.02 maxNbF0.040.09W 1.52.00B 0.0010.006Ti 0.01 maxZr 0.01 maxA335/A335M 21a2TABLE

23、1ContinuedGradeUNSDesigna-tionAComposition, %CarbonMan-ganesePhos-phorus,maxSulfur,maxSiliconChromiumMolybde-numOthersP93K913500.050.100.200.700.0200.0080.050.508.509.50. . .V 0.150.30W 2.53.5Co 2.53.5Ni 0.20 maxNbF+ Ta0.050.12Nd 0.0100.060B 0.0070.015Al 0.030 maxN 0.0050.015O 0.0050 maxP115K91060He

24、at0.080.130.200.500.0200.0050.150.4510.011.00.400.60V 0.180.25N 0.0300.070Ni 0.25 maxAl 0.02 maxNb 0.020.06W 0.05 maxB 0.001 maxTi 0.01 maxZr 0.01 maxCu 0.10 maxAs 0.010 maxSn 0.010 maxSb 0.003 maxN/Al ratio min 4.0CNBE, max 10.5Product0.070.140.200.500.0200.0050.150.4510.011.00.370.63V 0.160.27N 0.

25、0300.070Ni 0.25 maxAl 0.02 maxNb 0.020.07W 0.05 maxB 0.001 maxTi 0.01 maxZr 0.01 maxCu 0.10 maxAs 0.010 maxSn 0.010 maxSb 0.003 maxP122K929300.070.140.70 max0.0200.0100.50 max10.0011.500.250.60V 0.150.30W 1.502.50Cu 0.301.70NbF0.040.10B 0.00050.005N 0.0400.100Ni 0.50 maxAl 0.020 maxTi 0.01 maxZr 0.0

26、1 maxP128K914210.12 0.170.30 0.800.020.010.20 0.6010.50 12.000.20 0.60V 0.15 0.30Ni 0.10 0.40B 0.008 0.015N 0.002 0.020Co 1.50 2.20Al 0.02 maxCu 0.15 maxW 1.50 2.20Nb 0.02 0.06P911K910610.090.130.300.600.020 max0.010 max0.100.508.59.50.901.10V 0.180.25Ni 0.40 maxNbF0.0600.10B 0.00030.006N 0.040.09Al

27、 0.02 maxW 0.901.10Ti 0.01 maxZr 0.01 maxP921K912010.080.120.50.70.030.021.62.28.09.50.81.1Ni 0.81.4N 0.020.05Al 0.04 maxCu 0.81.4ANew designation established in accordance with Practice E527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).BGrade P5c shall have a titanium content of no

28、t less than 4 times the carbon content and not more than 0.70 %; or a niobium content of 8 to 10 times the carbon content.A335/A335M 21a3A5.29/A5.29M Low-Alloy Steel Electrodes for Flux CoredArc Welding2.4 Other Documents:SNT-TC-1A Recommended Practice for Nondestructive Per-sonnel Qualification and

29、 Certification5SAE J 1086 Practice for Numbering Metals and Alloys(UNS)63. Ordering Information3.1 Orders for material under this specification shouldinclude the following, as required, to describe the desiredmaterial adequately:3.1.1 Quantity (feet, metres, or number of lengths),3.1.2 Name of mater

30、ial (seamless alloy steel pipe),3.1.3 Grade (Table 1),3.1.4 Manufacture (hot-finished or cold-drawn),3.1.5 Size using one of the following:3.1.5.1 NPS and schedule number,3.1.5.2 Outside diameter and nominal wall thickness,3.1.5.3 Outside diameter and minimum wall thickness,3.1.5.4 Inside diameter a

31、nd nominal wall thickness, and3.1.5.5 Inside diameter and minimum wall thickness.3.1.6 Length (specific or random),3.1.7 End finish (Ends Section of Specification A999/A999M),3.1.8 Optional requirements (Section 8, 12, and 13 of thisspecification. See the Sections on Hydrostatic Test Require-ments a

32、nd Permissible Variation in Weight for Seamless Pipe inSpecification A999/A999M),3.1.9 Specification designation, and3.1.10 Special requirements or any supplementary require-ments selected, or both.3.1.11 The flattening or bend test shall be performed on 5 %of the pipe (or fewer in accordance with 1

33、4.2) unless Supple-mentary Requirement S3 is specified.4. General Requirements4.1 Material furnished to this specification shall conform tothe applicable requirements of the current edition of Specifi-cation A999/A999M, unless otherwise provided herein.5. Materials and Manufacture5.1 Pipe may be eit

34、her hot finished or cold drawn with thefinishing treatment as required in 5.2.5.2 Heat Treatment:5.2.1 All pipe shall be reheated for heat treatment and heattreated in accordance with the requirements of Table 2.NOTE3It is recommended that the temperature for tempering shouldbe at least 100 F 50 C a

35、bove the intended service temperature;consequently, the purchaser should advise the manufacturer if the servicetemperature is to be over 1100 F 600 C.NOTE4Certain of the ferritic steels covered by this specification willharden if cooled rapidly from above their critical temperature. Some willair har

36、den, that is, become hardened to an undesirable degree when cooledin air from high temperatures. Therefore, operations involving heatingsuch steels above their critical temperatures, such as welding, flanging,and hot bending, should be followed by suitable heat treatment.6. Chemical Composition6.1 T

37、he steel shall conform to the requirements as tochemical composition prescribed in Table 1.7. Workmanship, Finish, and Appearance7.1 The pipe manufacturer shall explore a sufficient numberof visual surface imperfections to provide reasonable assurancethat they have been properly evaluated with respe

38、ct to depth.Exploration of all surface imperfections is not required but maybe necessary to ensure compliance with 7.2.7.2 Surface imperfections that penetrate more than 1212%of the nominal wall thickness or encroach on the minimumwall thickness shall be considered defects. Pipe with suchdefects sha

39、ll be given one of the following dispositions:7.2.1 The defect may be removed by grinding provided thatthe remaining wall thickness is within specified limits.7.2.2 Repaired in accordance with the repair welding pro-visions of 7.6.7.2.3 The section of pipe containing the defect may be cutoff within

40、the limits of requirements on length.7.2.4 Rejected.7.3 To provide a workmanlike finish and basis for evaluat-ing conformance with 7.2, the pipe manufacturer shall removeby grinding the following:7.3.1 Mechanical marks, abrasions (see Note 5) and pits,any of which imperfections are deeper than116in.

41、 1.6 mm.NOTE5Marks and abrasions are defined as cable marks, dinges, guidemarks, roll marks, ball scratches, scores, die marks, and the like.7.3.2 Visual imperfections, commonly referred to as scabs,seams, laps, tears, or slivers, found by exploration in accor-dance with 7.1 to be deeper than 5 % of

42、 the nominal wallthickness.7.4 At the purchasers discretion, pipe shall be subject torejection if surface imperfections acceptable under 7.2 are notscattered, but appear over a large area in excess of what isconsidered a workmanlike finish. Disposition of such pipe shallbe a matter of agreement betw

43、een the manufacturer and thepurchaser.7.5 When imperfections or defects are removed by grinding,a smooth curved surface shall be maintained, and the wallthickness shall not be decreased below that permitted by this5Available fromAmerican Society for Nondestructive Testing (ASNT), P.O. Box28518, 1711

44、 Arlingate Ln., Columbus, OH 43228-0518, http:/www.asnt.org.6Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale,PA 15096-0001, http:/www.sae.org.CAlternatively, in lieu of this ratio minimum, the material shall have a minimum hardness of 275 HV in the hardened condition, define

45、d as after austenitizing and coolingto room temperature but prior to tempering. Hardness testing shall be performed at mid-thickness of the product. Hardness test frequency shall be two samples of productper heat treatment lot and the hardness testing results shall be reported on the material test r

46、eport.DApplies to both heat and product analyses.EChromium-Nickel Balance is defined as CNB = (Cr + 6Si + 4Mo + 1.5W + 11V + 5Nb + 9Ti + 12Al) (40C + 30N + 4Ni + 2Mn + 1CU).FThe terms Niobium (Nb) and Columbium (Cb) are alternate names for the same element.A335/A335M 21a4specification. The outside d

47、iameter at the point of grinding maybe reduced by the amount so removed.7.5.1 Wall thickness measurements shall be made with amechanical caliper or with a properly calibrated nondestructivetesting device of appropriate accuracy. In case of dispute, themeasurement determined by use of the mechanical

48、caliper shallgovern.7.6 Weld repair shall be permitted only subject to theapproval of the purchaser and in accordance with SpecificationA999/A999M.7.6.1 All repair welds in P91 shall be made with one of thefollowing welding processes and consumables: SMAW, A5.5/A5.5M E90XX-B9; SAW, A5.23/A5.23M EB9

49、+ neutral flux;GTAW,A5.28/A5.28M ER90S-B9; and FCAWA5.29/A5.29ME91T1-B9. In addition, the sum of the Ni+Mn content of allwelding consumables used to weld repair P91 Type 1 and Type2 shall not exceed 1.0 %.7.6.2 All repair welds in P92, P93, P911, and P122, shall bemade using welding consumables meet

50、ing the chemical re-quirements for the grade in Table 1.7.6.3 After weld repair, Grades P23, P91 Type 1 and Type 2,P92, and P122 shall be heat treated at 13501470 F 730800C.7.6.4 After weld repair, Grade P911 shall be heat treated at13651435 F 740780 C.7.6.5 After weld repair, Grade P24 shall be hea