1、Designation: A 335/A 335M 06Standard Specification forSeamless Ferritic Alloy-Steel Pipe for High-TemperatureService1This standard is issued under the fixed designationA 335/A 335M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, t
2、he year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification2cover
3、s 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 conditio
4、ns, mechanical properties, andhigh-temperature characteristics.1.2 Several grades of ferritic steels (see Note 1) are covered.Their compositions are given in Table 1.NOTE 1Ferritic 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 S7) of an optionalnature are provided. These supplementary requirements call foradditional tests to be made, and when desired, shall be so statedin the order together with the number of such tests required.1.4 The values stated in either inch-pound units or
6、SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents; therefore, each system mustbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the
7、specifi-cation. The inch-pound units shall apply unless the “M”designation of this specification is specified in the order.NOTE 2The dimensionless designator NPS (nominal pipe size) hasbeen substituted in this standard for such traditional terms as “nominaldiameter,” “size,” and “nominal size.”2. Re
8、ferenced Documents2.1 ASTM Standards:3A 999/A 999M Specification for General Requirements forAlloy and Stainless Steel PipeE 213 Practice for Ultrasonic Examination of Metal Pipeand TubingE 309 Practice for Eddy-Current Examination of Steel Tu-bular Products Using Magnetic SaturationE 381 Method of
9、Macroetch Testing Steel Bars, Billets,Blooms, and ForgingsE 527 Practice for Numbering Metals and Alloys (UNS)E 570 Practice for Flux Leakage Examination of Ferromag-netic Steel Tubular Products2.2 ASME Standard:B36.10M Welded and Seamless Wrought Steel Pipe2.3 Other Documents:SNT-TC-1A Recommended
10、Practice for NondestructivePersonnel Qualification and Certification4SAE J 1086 Practice for Numbering Metals and Alloys(UNS)53. Ordering Information3.1 Orders for material under this specification shouldinclude the following, as required, to describe the desiredmaterial adequately:3.1.1 Quantity (f
11、eet, metres, or number of lengths),3.1.2 Name of material (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 diamete
12、r and minimum wall thickness,3.1.5.4 Inside diameter and 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 A 999/A 999M),1This specification is under the jurisdiction of ASTM Committee A01 o
13、n Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 1951. Last previous edition approved in 2005 as A 335/A 335M-05a.2For ASME B
14、oiler and Pressure Vessel Code applications see related Specifi-cation SA-335 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 to the standar
15、ds Document Summary page onthe ASTM website.4Available from TheAmerican Society for Nondestructive Testing (ASNT), P.O.Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518.5Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.1*A Summary of Changes s
16、ection appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.8 Optional requirements (Section 8, 12 and 13 of thisspecification. See the Sections on Hydrostatic Test Require-ments and PermissibleVaria
17、tion inWeight for Seamless Pipe inSpecification A 999/A 999M),3.1.9 Test report required (Certification Section of Specifi-cation A 999/A 999M),3.1.10 Specification designation, and3.1.11 Special requirements or any supplementary require-ments selected, or both.4. General Requirements4.1 Material fu
18、rnished to this specification shall conform tothe applicable requirements of the current edition of Specifi-cation A 999/A 999M, unless otherwise provided herein.TABLE 1 Chemical RequirementsGradeUNSDesigna-tionAComposition, %CarbonMan-ganesePhos-phorus,maxSulfur,maxSilicon ChromiumMolybde-num Other
19、sP1 K11522 0.100.20 0.300.80 0.025 0.025 0.100.50 . . . 0.440.65 . . .P2 K11547 0.100.20 0.300.61 0.025 0.025 0.100.30 0.500.81 0.440.65 . . .P5 K41545 0.15 max 0.300.60 0.025 0.025 0.50 max 4.006.00 0.450.65 . . .P5b K51545 0.15 max 0.300.60 0.025 0.025 1.002.00 4.006.00 0.450.65 . . .P5c K41245 0.
20、12 max 0.300.60 0.025 0.025 0.50 max 4.006.00 0.450.65 . . .BP9 S50400 0.15 max 0.300.60 0.025 0.025 0.251.00 8.0010.00 0.901.10 . . .P11 K11597 0.050.15 0.300.60 0.025 0.025 0.501.00 1.001.50 0.440.65 . . .P12 K11562 0.050.15 0.300.61 0.025 0.025 0.50 max 0.801.25 0.440.65 . . .P15 K11578 0.050.15
21、0.300.60 0.025 0.025 1.151.65 . . . 0.440.65 . . .P21 K31545 0.050.15 0.300.60 0.025 0.025 0.50 max 2.653.35 0.801.06 . . .P22 K21590 0.050.15 0.300.60 0.025 0.025 0.50 max 1.902.60 0.871.13 . . .P23 K41650 0.040.10 0.100.60 0.030 max 0.010 max 0.50 max 1.902.60 0.050.30 V 0.200.30Cb 0.020.08B 0.000
22、50.006N 0.030 maxAl 0.030 maxW 1.451.75P36 K21001 0.100.17 0.801.20 0.030 max 0.025 max 0.250.50 0.30 max 0.250.50 Ni 1.00-1.30Cu 0.50-0.80Cb 0.015-0.045V0.02maxN0.02maxAl 0.050 maxP91 K91560 0.080.12 0.300.60 0.020 0.010 0.200.50 8.009.50 0.851.05 V 0.180.25N 0.0300.070Ni 0.40 maxAl 0.02 maxCb 0.06
23、0.10Ti 0.01 maxZr 0.01 maxP92 K92460 0.070.13 0.300.60 0.020 0.010 0.50 max 8.509.50 0.300.60 V 0.150.25N 0.030.07Ni 0.40 maxAl 0.02 maxCb 0.040.09W 1.52.00B 0.0010.006Ti 0.01 maxZr 0.01 maxP122 K92930 0.070.14 0.70 max 0.020 0.010 0.50 max 10.0011.50 0.250.60 V 0.150.30W 1.502.50Cu 0.301.70Cb 0.040
24、.10B 0.00050.005N 0.0400.100Ni 0.50 maxAl 0.020 maxTi 0.01 maxZr 0.01 maxP911 K91061 0.090.13 0.300.60 0.020 max 0.010 max 0.100.50 8.59.5 0.901.10 V 0.180.25Ni 0.40 maxCb 0.0600.10B 0.00030.006N 0.040.09Al 0.02 maxW 0.901.10Ti 0.01 maxZr 0.01 maxANew designation established in accordance with Pract
25、ice E 527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS).BGrade P 5c shall have a titanium content of not less than 4 times the carbon content and not more than 0.70 %; or a columbium content of 8 to 10 times the carboncontent.A 335/A 335M 0625. Materials and Manufacture5.1 Pipe may b
26、e either hot finished or cold drawn with thefinishing treatment as required in 5.3.5.2 Grade P2 and P12The steel shall be made by coarse-grain melting practice. Specific limits, if any, on grain size ordeoxidation practice shall be a matter of agreement betweenthe manufacturer and purchaser.5.3 Heat
27、 Treatment:5.3.1 All pipe shall be reheated for heat treatment and heattreated in accordance with the requirements of Table 2.NOTE 3It is recommended that the temperature for tempering shouldbe at least 100 F 50 C above the intended service temperature;consequently, the purchaser should advise the m
28、anufacturer if the servicetemperature is to be over 1100 F 600 C.NOTE 4Certain of the ferritic steels covered by this specification willharden if cooled rapidly from above their critical temperature. Some willair harden, that is, become hardened to an undesirable degree when cooledin air from high t
29、emperatures. 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 The steel shall conform to the requirements as tochemical composition prescribed in T
30、able 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 respect to depth.Exploration of all surface imperfections is not required but maybe neces
31、sary to ensure compliance with 7.27.2 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 shall be given one of the following dispositions:7.2.1 The defect may be removed by gri
32、nding 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 the limits of requirements on length.7.2.4 Rejected.7.3 To provide a workmanlike fin
33、ish 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 than116 in. 1.6 mm.TABLE 2 Heat Treatment RequirementsAGrade Heat Treat Type NormalizingTemper
34、ature,min or rangeF CCooling Media SubcriticalAnnealing orTemperingTemperature,min or rangeF CP1 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1200 650subcritical anneal . . . . . . 1200-1300 650-705P2 full or isothermal anneal . . . . . . . . .normalize and temper . .
35、. . . . 1250 675subcritical anneal . . . . . . 1200-1300 650-705P5 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1250 675P5b full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1250 675P5c subcritical anneal . . . . . . 1325-1375 715-745P9 full o
36、r isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1250 675P11 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1200 650P12 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1200 650subcritical anneal . . . . . . 1200-1300 650-7
37、05P15 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1200 650P21 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1250 675P22 full or isothermal anneal . . . . . . . . .normalize and temper . . . . . . 1250 675P23 normalize and temper 1900-1975
38、 1040-1080 air oracceleratedcooling1350-1470 730-800P36 normalize and temperB1650 900 . . . 1100 595P91 normalize and temper 1900-1975 1040-1080 . . . 1350-1470 730-800Cquench and temperD1900-1975 1040-1080 . . . 1350-1470 730-800P92 normalize and temper 1900-1975 1040-1080 . . . 1350-1470 730-800P1
39、22 normalize and temper 1900-1975 1040-1080 . . . 1350-1470 730-800P911 normalize and temper 1900-1975 1040-1080E1365-1435 740-780AWhere ellipses () appear in this table there is no requirement.BAlternatively, Grade P36, Class 2 shall be cooled from the austenitizing temperature by accelerated cooli
40、ng in air or by liquid quenching.CExcept when Supplementary Requirement S7 is specified by the purchaser.DWhen mutually agreed upon between the manufacturer and the purchaser, quenching and tempering shall be permitted for thicknesses greater than 3 in. 75 mm.EAccelerated cooling from the normalizin
41、g temperature shall be permitted for section thicknesses greater than 3 in. 75 mm.A 335/A 335M 063NOTE 5Marks 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, lap
42、s, tears, or slivers, found by exploration in accor-dance with 7.1 to be deeper than 5 % of 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 isc
43、onsidered a workmanlike finish. Disposition of such pipe shallbe a matter of agreement between 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
44、 thisspecification. The outside diameter 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 det
45、ermined by use of the mechanical caliper shallgovern.7.6 Weld repair shall be permitted only subject to theapproval of the purchaser and in accordance with SpecificationA 999/A 999M.7.6.1 After weld repair, Grades P23, P91, P92, and P122shall be heat treated at 1350-1470 F 730-800 C.7.6.2 After weld
46、 repair, Grade P911 shall be heat treated at1365-1435 F 740-780 C.7.7 The finished pipe shall be reasonably straight.8. Product Analysis8.1 At the request of the purchaser, an analysis of two pipesfrom each lot shall be made by the manufacturer. A lot (seeNote 6) of pipe shall consist of the followi
47、ng:NPS DesignatorUnder 2 400 or fraction thereof2 to 5 200 or fraction thereof6 and over 100 or fraction thereofNOTE 6Alot shall consist of the number of lengths specified in 8.1 ofthe same size and wall thickness from any one heat of steel.8.2 The results of these analyses shall be reported to thep
48、urchaser or the purchasers representative, and shall conformto the requirements specified in Table 1.8.3 For grade P 91 the carbon content may vary for theproduct analysis by 0.01 % and +0.02 % from the specifiedrange as per Table 1.8.4 If the analysis of one of the tests specified in 8.1 doesnot co
49、nform to the requirements specified in 6.1, an analysis ofeach billet or pipe from the same heat or lot may be made, andall billets or pipe conforming to the requirements shall beaccepted.9. Tensile and Hardness Requirements9.1 The tensile properties of the material shall conform tothe requirements prescribed in Table 3.9.2 Table 4 lists elongation requirements.9.3 Pipe of Grades P91, P92, P122,
