1、Designation: B 464 05Standard Specification forWelded UNS N08020, N08024, and N08026 Alloy Pipe1This standard is issued under the fixed designation B 464; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification2covers welded UNS N08020,N08024, and N08026 alloy pipe for general corrosion-resistingand low- or high-temperatur
3、e service.1.2 The pipe covered is nominal pipe sizes up to andincluding NPS 6, with the nominal wall thicknesses given asSchedules 5S, 10S, and 40S and nominal pipe sizes up to andincluding NPS 2, also including Schedule 80S. Table 2 ofSpecification B 775 is based on Table A1 of ANSI B36.19 andgives
4、 the nominal dimensions of these sizes. Table 3 ofSpecification B 775 lists the dimensional requirements of thesesizes. Pipe having other dimensions may be furnished providedsuch pipe complies with all other requirements of this specifi-cation.1.3 The values stated in inch-pound units are to be rega
5、rdedas the standard. The values given in parentheses are forinformation only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in
6、 the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3A 262 Practices for Detect
7、ing Susceptibility to Intergranu-lar Attack in Austenitic Stainless SteelsB 775 Specification for General Requirements for Nickeland Nickel-Alloy Welded PipeB 899 Terminology Relating to Non-ferrous Metals andAlloys2.2 ANSI Standard:B36.19 Stainless Steel Pipe43. Terminology3.1 Definitions:3.1.1 Def
8、initions for terms defined in Terminology B 899shall apply unless otherwise defined by the requirements of thisdocument.4. General Requirement4.1 Material furnished in accordance with this specificationshall conform to the applicable requirements of the currentedition of Specification B 775 unless o
9、therwise providedherein.5. Ordering Information5.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limited to, the following:5.1.1 Quantity (feet or number of lengt
10、hs),5.1.2 UNS number,5.1.3 Size (nominal pipe size and schedule),5.1.4 Length (random or specific),5.1.5 ASTM designation,5.1.6 Product AnalysisState if required,5.1.7 CertificationState if a certification or a report of testresults is required,5.1.8 Purchaser InspectionState which tests or inspec-t
11、ions are to be witnessed, if any, and5.1.9 Supplementary requirements, if any.6. Materials and Manufacture6.1 The pipe shall be made from flat-rolled stock by anautomatic welding process with no addition of filler metal.6.2 Heat TreatmentPipe of UNS N08020 alloy shall befurnished in the stabilized-a
12、nnealed condition. Pipe of UNSN08024 alloy shall be furnished in the annealed condition. Pipeof UNS N08026 alloy shall be furnished in the solution-annealed condition.NOTE 1The recommended annealing temperatures are 1800 to1This specification is under the jurisdiction of ASTM Committee B02 onNonferr
13、ous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Nov. 1, 2005. Published November 2005. Originallyapproved in 1967. Last previous edition approved in 2004 as B 464 04.2For ASME Boiler and Pressure Vess
14、el Code applications, see related Specifi-cation SB-464 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 Summary pa
15、ge onthe ASTM website.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Unit
16、ed States.1850F (982 to 1010C) for UNS N08020, 1925 to 1975F (1052 to1079C) for UNS N08024, and 2050 to 2200F (1121 to 1204C) for UNSN08026.7. Chemical Composition7.1 The material shall conform to the composition limitsspecified in Table 1. One test is required for each lot as definedin Specificatio
17、n B 775.7.2 If a product analysis is performed, it shall meet thechemistry limits prescribed in Table 1, subject to the analysistolerances specified in Specification B 775.8. Mechanical Properties and Other Requirements8.1 Mechanical PropertiesThe material shall conform tothe mechanical property req
18、uirements specified in Table 2. Onetest is required for each lot as defined in Specification B 775.8.2 Flattening TestA flattening test shall be made on eachend of one pipe per lot. Superficial ruptures resulting fromsurface imperfections shall not be cause for rejection.8.3 Nondestructive Test Requ
19、irementsEach pipe shall besubjected to either a pressure test or a nondestructive electrictest at the manufacturers option. The purchaser may specifywhich test is to be used.8.4 Transverse Guided Bend TestAt the option of the pipemanufacturer, the transverse guided bend test may be substi-tuted in l
20、ieu of the flattening test. Two bend specimens shall betaken transversely from pipe or the test specimens may betaken from a test plate of the same material and heat as pipe,which is attached to the end of the cylinder and welded as aprolongation of the pipe longitudinal seam. One test is requiredfo
21、r each lot as defined in Specification B 775.9. Lengths9.1 Lengths may be ordered as either random lengths(normally 15 to 24 ft (4.6 to 8.3 m) with some agreed uponallowance for shorts) or specific cut lengths.10. Keywords10.1 welded pipe; N08020; N08024; N08026SUPPLEMENTARY REQUIREMENTSThe followin
22、g supplementary requirements shall be applied only when specified by the purchaserin the inquiry, contract, or order:S1. Corrosion TestsS1.1 One intergranular corrosion test per lot shall be per-formed by the manufacturer on a sensitized specimen andtested in accordance with Practices A 262. When th
23、is supple-mentary requirement is specified, the specific practice (PracticeB or Practice E) shall also be specified. If Practice B isspecified, the specimen must pass with a rate of less than 0.002in. (0.05 mm) per month. A lot for intergranular corrosiontesting shall be the same as for mechanical t
24、esting.S1.1.1 In addition to the anneal recommended in Note 1, thespecimen shall be sensitized for1hat1250F (677C) beforebeing subjected to corrosion testing.S1.1.2 If any corrosion test specimen fails the test, thematerial represented by such specimens may be reheat-treatedand resubmitted for test.
25、TABLE 1 Chemical RequirementsElementComposition,%UNS N08020 UNS N08024 UNS N08026Carbon, max 0.07 0.03 0.03Manganese, max 2.00 1.00 1.00Phosphorus,max0.045 0.035 0.03Sulfur, max 0.035 0.035 0.03Silicon, max 1.00 0.50 0.50Nickel 32.0038.00 35.0040.00 33.0037.20Chromium 19.0021.00 22.5025.00 22.0026.0
26、0Molybdenum 2.003.00 3.505.00 5.006.70Copper 3.004.00 0.501.50 2.004.00Columbium(Nb) +8 3 carbon1.00 0.150.35tantalumNitrogen . . 0.100.16IronAremainder remainder remainderABy difference.TABLE 2 Mechanical Property RequirementsTensile Strength,min, ksi (MPa)Yield Strength,min, ksi (MPa)Elongation in
27、 2 in.(50.8 mm), min, %80 (551) 35 (241) 30.0B464052SUMMARY OF CHANGESCommittee B02 has identified the location of selected changes to this standard since the last issue (B 464 04)that may impact the use of this standard.(1) Added Transverse Guided Bend Test option.ASTM International takes no positi
28、on respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility
29、.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM
30、International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address sh
31、own below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).B464053
