1、Designation: A369/A369M 18Standard Specification forCarbon and Ferritic Alloy Steel Forged and Bored Pipe forHigh-Temperature Service1This standard is issued under the fixed designation A369/A369M; the number immediately following the designation indicates the yearof original adoption or, in the cas
2、e 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.1. Scope*1.1 This specification2covers heavy-wall carbon and alloysteel pipe (Note 1) made from turned
3、and bored forgings and isintended for high-temperature service. Pipe ordered under thisspecification shall be suitable for bending and other formingoperations and for fusion welding. Selection will depend ondesign, service conditions, mechanical properties and high-temperature characteristics.NOTE 1
4、The use of the word “pipe” throughout the several sections ofthis specification is used in the broad sense and intended to mean pipeheaders, or leads.NOTE 2The dimensionless designator NPS (nominal pipe size) hasbeen substituted in this standard for such traditional terms as “nominaldiameter,” “size
5、,” and “nominal size.”1.2 Several grades of ferritic steels are covered. Theircompositions are given in Table 1.1.3 Supplementary requirements (S1 to S6) of an optionalnature are provided. These supplementary requirements call foradditional tests to be made, and when desired shall be so statedin the
6、 order, together with the number of such tests required.1.4 The values stated in either SI units or inch-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
7、 be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with thestandard. The inch-pound units shall apply unless the “M”designation of this specification is specified in the order.1.5 This international standard was developed in accor-dance with inter
8、nationally 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 Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A999/
9、A999M Specification for General Requirements forAlloy and Stainless Steel PipeE290 Test Methods for Bend Testing of Material for Ductil-ityE381 Method of Macroetch Testing Steel Bars, Billets,Blooms, and Forgings2.2 ASME Boiler and Pressure Vessel Code:4Section IX2.3 ANSI Standard:5B 46.1 Surface Te
10、xture2.4 AWS Specifications:6A5.5/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 Specification for Low-Alloy Steel Elec-trodes for Gas Shielded Arc WeldingA5.2
11、9/A5.29M Low-Alloy Steel Electrodes for Flux CoredArc Welding3. Ordering Information3.1 Orders for material to this specification should includethe following, as required, to describe the desired materialadequately:3.1.1 Quantity (feet, centimetres, or number of lengths),3.1.2 Name of material (forg
12、ed and bored pipe),3.1.3 Grade (Table 1),3.1.4 Size (inside diameter and minimum wall thickness),3.1.5 Length (Permissible Variations in Length Section ofSpecification A999/A999M),1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is t
13、he direct responsibility of SubcommitteeA01.10 on Stainless and Alloy Steel Tubular Products.Current edition approved March 1, 2018. Published March 2018. Originallyapproved in 1953. Last previous edition approved in 2016 as A369/A369M 11(2016). DOI: 10.1520/A0369_A0369M-18.2For ASME Boiler and Pres
14、sure Vessel Code applications see related Specifi-cation SA-369 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 standards Document Su
15、mmary 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 American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/
16、www.ansi.org.6Available from American Welding Society (AWS), 550 NW LeJeune Rd.,Miami, FL 33126, 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 in
17、ternational standard was developed in accordance with internationally recognized principles on 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)
18、Committee.13.1.6 Verification of tensile and hardness properties atmid-thickness for Grade FP91 Type 1 and Type 2 (9.2),3.1.7 End finish (13),3.1.8 Optional requirements (Sections 8, SupplementaryRequirements S1 to S6; 13.2),3.1.9 Test report required (Certification Section of Specifi-cation A999/A9
19、99M),3.1.10 Specification designation, and3.1.11 Special requirements or exceptions to this specifica-tion.4. General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A999/A999M, unless otherwise provided
20、 herein.5. Materials and Manufacture5.1 Discard:5.1.1 A sufficient discard shall be made from each ingot tosecure freedom from injurious defects. The steel shall have ahomogeneous structure.5.2 Manufacture:5.2.1 Material for forging shall consist of ingots or ofblooms, billets, or solid-rolled bars
21、forged or rolled from aningot, and cut to the required length by a process that will notproduce injurious defects in the forging.5.2.2 The material shall be forged (Note 3) by hammering orpressing, and shall be brought as nearly as practicable to thefinished shape and size by hot working.NOTE 3The c
22、ross-sectional area of the solid forging shall have areduction by forging or by rolling and forging from that of the ingot in theratio of not less than 3 to 1.5.2.3 Unless otherwise specified, the final forging operationshall be followed by a treatment suitable to the grade asspecified in 5.4.TABLE
23、1 Chemical RequirementsGrade Composition, %FPA FPB FP1 FP2Carbon 0.25 max 0.30 max 0.100.20 0.100.20Manganese 0.270.93 0.291.06 0.300.80 0.300.61Phosphorus, max 0.035 0.035 0.025 0.025Sulfur, max 0.035 0.035 0.025 0.025Silicon 0.10 min 0.10 min 0.100.50 0.100.30Chromium . . . 0.500.81Molybdenum . .
24、0.440.65 0.440.65Grade FP5 FP9 FP11 FP12Carbon 0.15 max 0.15 max 0.050.15 0.050.15Manganese 0.300.60 0.300.60 0.300.60 0.300.61Phosphorus, max 0.025 0.030 0.025 0.025Sulfur, max 0.025 0.030 0.025 0.025Silicon 0.50 max 0.501.00 0.501.00 0.50 maxChromium 4.006.00 8.0010.00 1.001.50 0.801.25Molybdenum
25、0.450.65 0.901.10 0.440.65 0.440.65Grade FP21 FP22 FP91 FP92Type 1 Type 2Carbon 0.070.13Heat 0.050.15 0.050.15 0.080.12 0.080.12Product . . . 0.070.13Manganese 0.300.60 0.300.60 0.300.60 0.300.50A0.300.60Phosphorus, max 0.025 0.025 0.025 0.020A0.020Sulfur, max 0.025 0.025 0.025 0.005A0.010Silicon 0.
26、50 max 0.50 max 0.200.50 0.200.40A0.50 maxChromium 2.653.35 1.902.60 8.009.50 8.09.50A8.509.50Molybdenum 0.300.60Heat 0.801.06 0.871.13 0.851.05 0.851.05Product . . . 0.801.05Others: W 1.502.00Ni 0.40 max 0.20 maxAV 0.150.25V Cb 0.040.09Heat 0.180.25 0.180.25Product . 0.160.27Cb N 0.0300.070Heat 0.0
27、60.10 0.060.10Product . 0.050.11N 0.030.07 0.0350.070ANi 0.40 maxAl 0.02 max 0.020 maxAAl 0.02 maxTi 0.01 max 0.01 maxATi 0.01 maxZr 0.01 max 0.01 maxAZr 0.01 maxSn . 0.010 maxAB 0.0010.006Sb . 0.003 maxAB . 0.001 maxACu . 0.10 maxAW . 0.05 maxAAs . 0.010 maxAN/Al . $ 4.0AApplies to both heat and pr
28、oduct analyses.A369/A369M 1825.3 Machining:5.3.1 All forgings shall have both the inner and outersurfaces machined.5.3.2 After heat treatment, the pipe shall be machined to afinish with a roughness value no greater than 250-in. 6.4-marithmetical average deviation (AA), terms as defined in ANSIB 46.1
29、-1962, unless otherwise specified.5.4 Heat Treatment:5.4.1 All pipe of the grades shown in Table 1 other thanFPA, FPB, FP1, FP2, FP12, FP91 Type 1 and Type 2, and FP92shall be reheated and furnished in the full-annealed or normal-ized and tempered condition. If furnished in the normalizedand tempere
30、d condition (Note 4), the temperature for temper-ing shall be 1250 F 680 C or higher for Grades FP5, FP9,FP21, and FP22, and 1200 F 650 C or higher for GradesFP36 and FP11.NOTE 4It is recommended that the temperature for tempering shouldbe at least 100 F 50 C above the intended service temperature;c
31、onsequently, the purchaser should advise the manufacturer if the servicetemperature is to be over 1100 F 600 C.5.4.2 Pipe in Grades FPA and FPB as a final heat treatmentshall be either normalized or shall be given a stress relievingtreatment at 1200 to 1300 F 650 to 705 C. Pipe in GradesFP1, FP2, an
32、d FP12, as a final heat treatment shall be given astress-relieving treatment at 1200 to 1300 F 650 to 705 C.NOTE 5Certain of the ferritic steels covered by this specification tendto harden if cooled rapidly from above their critical temperature. Somewill air harden, that is, become hardened to an un
33、desirable degree whencooled in air from high temperatures. Therefore, operations involvingheating such steels above their critical temperatures, such as welding,hot-bending and other forming operations, should be followed by suitableheat treatment.5.4.3 Except when Supplementary Requirement S6 is sp
34、eci-fied by the purchaser, Grade FP91 Type 1 and Type 2 shall benormalized and tempered by reheating within the temperaturerange from 1900 to 1975 F 1040 to 1080 C, followed by aircooling and tempering in the temperature range of 1350 to1470 F 730 to 800 C.5.4.4 Except when Supplementary Requirement
35、 S6 is speci-fied by the purchaser, Grade FP92 shall be normalized andtempered by reheating within the temperature range of 1900 to1975 F 1040 to 1080 C, followed by air cooling andtempering in the temperature range of 1350 to 1470 F 730 to800 C.5.5 Repair by Welding:5.5.1 Weld repair shall be permi
36、tted only subject to theapproval of the purchaser and in accordance with SpecificationA999/A999M.5.5.2 All repair welds in FP91 shall be made with one of thefollowing welding processes and consumables: SMAW, A5.5/A5.5M E90XX-B9; SAW, A5.23/A5.23M EB9 + neutral flux;GTAW, A5.28/A5.28M ER90S-B9; and F
37、CAWA5.29/A5.29ME91T1-B9. In addition, the sum of the Ni + Mn content of allwelding consumables used to weld repair FP91 Type 1 andType 2 shall not exceed 1.0 %.5.5.3 All repair welds in FP92 shall be made using weldingconsumables meeting the chemical requirements for the gradein Table 1.5.5.4 After
38、weld repair, Grades FP91 Type 1 and Type 2 andFP92 shall be heat treated at 13501470 F 730800 C.6. Chemical Composition6.1 The steel shall conform to the requirements as tochemical composition prescribed in Table 1.7. Heat Analysis7.1 An analysis of each heat of steel shall be made by thesteel manuf
39、acturer to determine the percentages of the ele-ments specified. If secondary melting processes are employed,the heat analysis shall be obtained from one remelted ingot orthe product of one remelted ingot of each primary melt. Thechemical composition thus determined, or that determinedfrom a product
40、 analysis made by the tubular productmanufacturer, shall conform to the requirements specified.7.2 In the case of large ingots poured from two or moreheats, the weighted average of the chemical determinations ofthe several heats, made in accordance with 7.1, shall conformto the requirements specifie
41、d in Section 6.8. Product Analysis8.1 At the request of the purchaser, a product analysis shallbe made by the manufacturer on every heat.8.2 The results of these analyses shall be reported to thepurchaser or his representative, and shall conform to therequirements specified in Section 6.8.3 If the a
42、nalysis of one of the tests specified in Section 7or Section 8 does not conform to the requirements specified inSection 6 an analysis of each billet or pipe from the same heatmay be made, and all billets or pipes conforming to therequirements shall be accepted.9. Tensile Requirements9.1 The material
43、 shall conform to the requirements as totensile properties prescribed in Table 2. Tests for acceptanceshall be made after final heat treatment of the forging.9.2 For Grade FP91 Type 1 and Type 2, when requested bythe purchaser, the tensile and hardness properties shall be metand verified on material
44、 taken from the half-thickness location.10. Mechanical Tests Required10.1 Transverse or Longitudinal Tension TestOne testshall be made on a specimen from one end of one length ofpipe representing each heat in each heat-treatment lot.10.2 Flattening TestFor pipe NPS 14 or less, and diameterto wall th
45、ickness ratios of more than 7.0, a flattening test shallbe carried out in accordance with Specification A999/A999M.A test shall be carried out on a specimen taken from one end ofeach length of pipe.10.3 Bend TestFor pipe larger than NPS 14 or NPS wherediameters to wall thickness ratio is 7.0 or less
46、, a bend test shallbe carried out in accordance with Test Methods E290. Unlessotherwise specified, the test specimens shall be taken in atransverse direction. The diameter of the pin shall be23 t forlongitudinal specimens or 113 t for transverse specimens,A369/A369M 183where t is the specimen thickn
47、ess. The bend test specimensshall be bent at room temperature through 180 withoutcracking. One bend test shall be taken from one end of eachlength of pipe.11. Workmanship11.1 The pipe shall conform to the sizes and shapes speci-fied by the purchaser.12. Ends12.1 Pipe ends shall be machined as specif
48、ied in thepurchase order.13. Finish13.1 The finished pipe shall be reasonably straight and shallhave a workmanlike finish.13.2 Repair of defects by welding shall be permitted onlysubject to the approval of the purchaser. Defects shall bethoroughly chipped or ground out before welding. Only quali-fie
49、d operators and procedures in accordance with the ASMEBoiler and Pressure Vessel Code, Section IX, shall be used.Local or full heat treatment in accordance with 5.4 shall followwelding. Local grinding following welding and retreating shallbe considered as meeting the requirements of 5.3.14. Product Marking14.1 In addition to the marking prescribed in SpecificationA999/A999M, the marking shall include the wall thickness,piece mark, length, and additional s
