1、Designation: B 804 02 (Reapproved 2007)Standard Specification forUNS N08367 and UNS N08926 Welded Pipe1This standard is issued under the fixed designation B 804; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revi
2、sion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers UNS N08367 and UNSN08926 welded pipe for general corrosion applications. (Al-though no restrictions
3、are placed on the sizes of pipe that maybe furnished under this specification, commercial practice iscommonly limited to sizes not less than 8 in. nominal diam-eter.)1.2 Six classes of pipe are covered as follows:1.2.1 Class 1 pipe shall be double welded by processesemploying filler metal in all pas
4、ses and shall be completelyradiographed.1.2.2 Class 2 pipe shall be double welded by processesemploying filler metal in all passes. No radiography is re-quired.1.2.3 Class 3 pipe shall be double welded by processesemploying filler metal in all passes except the inside root weldmay be made without th
5、e addition of filler metal. Welds are tobe completely radiographed.1.2.4 Class 4 pipe shall be double welded by processesemploying filler metal in all passes except the inside root weldmay be made without the addition of filler metal. No radiog-raphy is required.1.2.5 Class 5 pipe shall be single we
6、lded by processesemploying filler metal in all passes except that the passexposed to the inside pipe surface may be made without theaddition of filler metal. Welds are to be completely radio-graphed.1.2.6 Class 6 pipe shall be single welded by processesemploying filler metal in all passes except tha
7、t the passexposed to the inside pipe surface may be made without theaddition of filler metal. No radiography is required.1.3 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.4 The following safety hazards caveat pertai
8、ns only to thetest methods portion, Section 12, of this standard: This stan-dard does not purport to address all of the safety concerns, ifany, associated with its use. It is the responsibility of the userof this standard to become familiar with all hazards includingthose identified in the appropria
9、te Material Safety Data Sheet(MSDS) for this product/material as provided by the manufac-turer, to establish appropriate safety and health practices, anddetermine the applicability of regulatory limitations prior touse.2. Referenced Documents2.1 ASTM Standards:2A 262 Practices for Detecting Suscepti
10、bility to Intergranu-lar Attack in Austenitic Stainless SteelsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsB 625 Specification for UNS N08925, UNS N08031, UNSN08932, UNS N08926, UNS N08354, and UNS R20033Plate, Sheet, and StripB 688 Specification for Chromium-Nickel-Moly
11、bdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, andStripB 880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysB 899 Terminology Relating to Non-ferrous Metals andAlloysE8 Test Methods for Tension Testing of Metallic MaterialsE2
12、9 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE38 Methods for Chemical Analysis of Nickel-Chromiumand Nickel-Chromium-Iron Alloys3E 354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron,Nickel, and C
13、obalt AlloysE 1019 Test Methods for Determination of Carbon, Sulfur,Nitrogen, and Oxygen in Steel and in Iron, Nickel, andCobalt AlloysE 1473 Test Methods for Chemical Analysis of Nickel,1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the dir
14、ect responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Nov. 1, 2007. Published November 2007. Originallyapproved in 1989. Last previous edition approved in 2002 as B 804 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org,
15、orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Cobal
16、t, and High-Temperature Alloys2.2 ASME Boiler and Pressure Vessel Code:4Section VIII, Division 1 Rules for Construction of PressureVesselsSection IX Qualification Standard for Welding and BrazingProcedures, Welders, Brazers, and Welding and BrazingOperators2.3 American Welding Society Standards:5AWS
17、 A5.11 Nickel and Nickel Alloy Covered WeldedElectrodesAWS A5.14 Nickel and Nickel Alloy Bare Welding Rodsand Electrodes3. Terminology3.1 Terms defined in Terminology B 899 shall apply unlessotherwise defined in this standard.4. Ordering Information4.1 It is the responsibility of the purchaser to sp
18、ecify allrequirements that are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limited to, the following:4.1.1 Quantity (feet or number of lengths),4.1.2 Class (see 1.2),4.1.3 Size (outside diameter and minimum wall thickness),4.1.4 Length (s
19、pecific or random),4.1.5 ASTM specification number,4.1.6 Authorization for repair of plate defects by weldingwithout prior approval if such is intended (see 9.4),4.1.7 Circumferential weld permissibility (see 8.3.2), and4.1.8 Supplementary requirements.5. Materials and Manufacture5.1 MaterialsThe st
20、arting material shall conform to therequirements of Specification B 688 for UNS N08367 andSpecification B 625 for UNS N08926.5.2 Manufacture:5.2.1 The joints shall be double or single welded, fullpenetration welds made in accordance with ASME Boiler andPressure Vessel Code, Section IX.5.2.2 The weld
21、s shall be made either manually or automati-cally by an electric process involving the deposition of fillermetal according to the class specified.5.2.3 The weld surface on either side of the weld shall beflush with the base plate or shall have a reasonably uniformcrown, not to exceed18 in. (3.2 mm).
22、 Any weld reinforcementmay be removed at the manufacturers option or by agreementbetween the manufacturer and purchaser. The contour of thereinforcement shall be reasonably smooth and free of irregu-larities. The deposited metal shall be fused uniformly into theplate surface. No concavity of contour
23、 is permitted unless theresulting thickness of weld metal is equal to or greater than theminimum thickness of the adjacent base metal.5.2.4 Weld defects shall be repaired by removal to soundmetal and rewelding. Subsequent heat treatment and inspectionshall be as required on the original welds.5.3 He
24、at TreatmentThe recommended heat treatmentshall consist of heating to a minimum temperature of 2025Ffor UNS N08367 and 2012F for UNS N08926 followed byquenching in water or rapidly cooling by other means.6. Chemical Composition6.1 The chemical composition of the pipe shall conform tothe requirements
25、 in Table 1 of Specification B 688 for UNSN08367 and Table 1 of Specification B 625 for UNS N08926.6.2 The alloy content of the deposited weld metal shallconform to that required for the plate or the welding electrodesas shown in Specification AWS A5.11 for ENiCrMo-3,ENiCrMo-4, and ENiCrMo-10 or AWS
26、 A5.14 for ERNiCrMo-10, ERNiCrMo-3, and ERNiCrMo-4.6.3 If product analysis is made of the plate or weld metal bythe purchaser, the chemical composition thus determined shallconform to the requirements specified in 6.1 and 6.2 subject tothe permissible tolerances in Specification B 880.7. Mechanical
27、Properties and Other Requirements7.1 Mechanical Properties:7.1.1 The mechanical properties of the plate shall be inaccordance with Table 1. Tension tests made by the platemanufacturer shall qualify the plate material.7.1.2 Transverse tension tests taken across the welded jointshall have the same min
28、imum ultimate tensile strength as thespecified minimum ultimate tensile strength of the plate.7.2 Transverse Guided Weld Bend Test RequirementsBends made in accordance with Fig. 1 shall be acceptable if nocracks or other imperfections exceeding18 in. (3.2 mm) in anydirection are present in the weld
29、metal or between the weld andthe pipe metal after bending. Cracks that originate along theedges of the specimen during testing, and that are less than14in. (6.3 mm) measured in any direction, shall not be consid-ered.7.3 Pressure TestAny pipe that shows leaks during thepressure test conducted in acc
30、ordance with 13.4 shall berejected, but any leaking areas may be cut out and the piperetested as above.7.4 Radiographic ExaminationFor Classes 1, 3, and 5pipe, radiographic examination shall be in accordance with therequirements of the ASME Boiler and Pressure Vessel Code,Section VIII, latest editio
31、n, Paragraph UW-51.8. Dimensions, Mass, and Permissible Variations8.1 Permissible variations in dimensions at any point in alength of pipe shall not exceed the following:4Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 100
32、16-5990, http:/www.asme.org.5Available from American Welding Society (AWS), 550 NW LeJeune Rd.,Miami, FL 33126, http:/www.aws.org.TABLE 1 Mechanical Property RequirementsGageTensile Strength, min Yield Strength, minElongationin 2 in. or50.8 mm,min, %ksi MPa ksi MPaUNSN08367#316 100 690 45 310 30316
33、95 655 45 310 30UNSN0892694 650 43 295 35B 804 02 (2007)28.1.1 Outside DiameterBased on circumferential mea-surement, 60.5 % of the nominal outside diameter.8.1.2 Out-of-RoundnessDifferences between major andminor outside diameters, 1.0 % of the specified outside diam-eter.8.1.3 Alignment (Camber)Us
34、ing a 10-ft (3-m) straight-edge placed so that both ends are in contact with the pipe, thecamber shall not be more than18 in. (3.17 mm).8.2 ThicknessThe minimum wall thickness at any point inthe pipe shall not be more than 0.01 in. (0.25 mm) under thenominal thickness.8.3 Lengths:8.3.1 The lengths r
35、equired shall be specified in the orders.8.3.2 Circumferentially welded joints of the same quality asthe longitudinal joints shall be permitted by agreement betweenthe manufacturer and the purchaser.9. Workmanship, Finish, and Appearance9.1 Pipe shall be furnished with smooth ends, free of burrs.9.2
36、 The finished pipe shall be free of injurious defects andshall have a workmanlike finish.9.3 Repair of Plate Defects by Machining or GrindingPipe showing moderate slivers may be machined or groundinside or outside to a depth that shall ensure the removal of allincluded scale and slivers, provided th
37、e wall thickness is notreduced below the specified minimum wall thickness. Machin-ing or grinding shall follow inspection of the pipe as rolled andshall be followed by supplementary visual inspection.9.4 Repair of Plate Defects by WeldingRepair of injuriousdefects shall be permitted only with the ap
38、proval of thepurchaser. Defects shall be thoroughly chipped out beforewelding. The repairs shall be radiographed and if the pipe itselfhas already been heat treated, it shall then be heat treated againexcept in the case of small welds that, in the estimation of thepurchasers inspector, do not requir
39、e heat treatment. Eachlength of pipe repaired in this manner shall be hydrostaticallytested after being repaired.9.5 The pipe shall be sandblasted or pickled to remove allscale and then passivated.10. Sampling10.1 Lots for Chemical Analysis and Mechanical Testing:10.1.1 Heat AnalysisA lot shall cons
40、ist of one heat.10.1.2 Mechanical TestingA lot shall consist of the ma-terial of the same nominal size from one heat and condition.10.2 Sampling for Chemical Analysis:10.2.1 A representative sample shall be taken by the platemanufacturer during pouring or subsequent processing.10.2.2 Product analysi
41、s, if performed, shall be wholly theresponsibility of the purchaser.10.3 Sampling for Mechanical PropertiesTransverse ten-sion and bend test specimens shall be cut after final heattreatment from the end of the finished pipe or from a test plateof the same material as the pipe that is attached to the
42、 end ofthe cylinder and welded as a prolongation of the longitudinalpipe seam.11. Number of Tests and Retests11.1 Chemical AnalysisOne test per lot.11.2 Transverse Tension TestOne per lot.11.3 Transverse Guided Weld Bend TestOne face bendand one root bend per lot (Fig. 2).NOTE 11 in. = 25.4 mm.Test
43、Specimen Thickness, in. A B C D38 11234 238 1316t 4t 2t 6t +18 3t +116FIG. 1 Guided-Bend Test JigB 804 02 (2007)311.4 Pressure TestEach pipe shall be subjected to thepressure test.11.5 Retests:11.5.1 If the results of any mechanical tests of pipe materialof any lot do not conform to the requirements
44、 specified inSection 7, retests shall be made on double the original numberfrom the same lot, each of which shall conform to therequirements specified.11.5.2 If the results of the mechanical tests of any lot do notconform to the requirements specified, such lot may bereworked and resubmitted. The sa
45、me number of tests asoriginally specified shall be required on reworked and resub-mitted pipe.12. Specimen Preparation12.1 The test specimens required by this specification shallconform to those described in Test Methods and DefinitionsA 370.12.2 The transverse tension and bend test specimens shallb
46、e flattened cold before final machining to size if flattening isrequired.12.3 Tension and bend test specimens shall be the fullthickness of the material as rolled and shall be machined to theform and dimensions shown in Fig. 2, Fig. 3, and Fig. 4.12.4 If any test specimen shows flaws or defective ma
47、chin-ing, it may be discarded and another specimen substituted.13. Test Methods13.1 The chemical composition and mechanical propertiesof the material as enumerated in this specification shall bedetermined, in case of disagreement, in accordance with thefollowing ASTM methods:13.1.1 Chemical Analysis
48、Methods E38and Test MethodsE 354. Iron shall be determined arithmetically by difference.Methods E38is to be used only for elements not covered byTest Methods E 354. Use Test Methods E 1019 for Nitrogen.13.1.2 Tension TestTest Methods E8.13.2 For the purposes of determining compliance with thelimits
49、in this specification, an observed value or a calculatedvalue shall be rounded as indicated, in accordance with therounding method of Practice E29:Requirements Rounded unit for observed or cal-culated valueChemical Composition and toler-anceNearest unit in the last right-handplace of figures of the specifiedlimitTensile strength and yield strength nearest 1000 psi (7 MPa)Elongation nearest 1 %NOTE 118 in. = 3.18 mm; 112 in. = 38.1 mm; 6 in. = 152 mm.Pipe Wall Thickness, in. (mm) Test Specimen Thickness, in. (mm)Up to38 (9.53), incl tOver3
