1、Designation: B464 10Standard Specification forWelded UNS N08020 Alloy Pipe1This standard is issued under the fixed designation B464; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses
2、 indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification2covers welded UNS N08020 alloypipe for general corrosion-resisting and low- or high-temperature service.1.2 The pipe covered is nominal
3、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 B775 is based on Table A1 of ANSI B36.19 andgives the nominal dimensions of these sizes. Tab
4、le 3 ofSpecification B775 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 regardedas standard. The values given in parenth
5、eses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.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
6、 hazards including those identified in 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
7、 Standards:3A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsB775 Specification for General Requirements for Nickeland Nickel Alloy Welded PipeB899 Terminology Relating to Non-ferrous Metals andAlloys2.2 ANSI Standard:B36.19 Stainless Steel Pipe43. Ter
8、minology3.1 Definitions:3.1.1 Definitions for terms defined in Terminology B899shall 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
9、 of Specification B775 unless otherwise 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 Qu
10、antity (feet or number of lengths),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 Inspecti
11、onState which tests or inspec-tions 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
12、befurnished in the stabilized-annealed condition.NOTE 1The recommended annealing temperatures are 1800 to1850F (982 to 1010C) for UNS N08020.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Re
13、fined Nickel and Cobalt and Their Alloys.Current edition approved June 1, 2010. Published June 2010. Originallyapproved in 1967. Last previous edition approved in 2009 as B464 05 (2009).DOI: 10.1520/B0464-10.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SB-464 in
14、 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 page onthe ASTM website.4Available from American National St
15、andards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.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, United States.7. Chemical Composition7.1 T
16、he material shall conform to the composition limitsspecified in Table 1. One test is required for each lot as definedin Specification B775.7.2 If a product analysis is performed, it shall meet thechemistry limits prescribed in Table 1, subject to the analysistolerances specified in Specification B77
17、5.8. Mechanical Properties and Other Requirements8.1 Mechanical PropertiesThe material shall conform tothe mechanical property requirements specified in Table 2. Onetest is required for each lot as defined in Specification B775.8.2 Flattening TestA flattening test shall be made on eachend of one pip
18、e per lot. Superficial ruptures resulting fromsurface imperfections shall not be cause for rejection.8.3 Nondestructive Test RequirementsEach pipe shall besubjected to either a pressure test or a nondestructive electrictest at the manufacturers option. The purchaser may specifywhich test is to be us
19、ed.8.4 Transverse Guided Bend TestAt the option of the pipemanufacturer, the transverse guided bend test may be substi-tuted in lieu 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 pi
20、pe,which is attached to the end of the cylinder and welded as aprolongation of the pipe longitudinal seam. One test is requiredfor each lot as defined in Specification B775.9. Lengths9.1 Lengths may be ordered as either random lengths(normally 15 to 24 ft (4.6 to 8.3 m) with some agreed uponallowanc
21、e for shorts) or specific cut lengths.10. Keywords10.1 welded pipe; N08020SUPPLEMENTARY REQUIREMENTSThe following 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
22、be per-formed by the manufacturer on a sensitized specimen andtested in accordance with Practices A262. When this 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 th
23、an 0.002in. (0.05 mm) per month. A lot for intergranular corrosiontesting shall be the same as for mechanical testing.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 sp
24、ecimen fails the test, thematerial represented by such specimens may be reheat-treatedand resubmitted for test.TABLE 1 Chemical RequirementsElementComposition,%UNS N08020Carbon, max 0.07Manganese, max 2.00Phosphorus,max0.045Sulfur, max 0.035Silicon, max 1.00Nickel 32.0038.00Chromium 19.0021.00Molybd
25、enum 2.003.00Copper 3.004.00Columbium(Nb) +8 3 carbon1.00tantalumNitrogen .IronAremainderABy difference.TABLE 2 Mechanical Property RequirementsTensile Strength,min, ksi (MPa)Yield Strength,min, ksi (MPa)Elongation in 2 in.(50.8 mm), min, %80 (551) 35 (241) 30.0B464 102SUMMARY OF CHANGESCommittee B0
26、2 has identified the location of selected changes to this standard since the last issue(B464 - 05 (2009) that may impact the use of this standard. (Approved June 1, 2010.)(1) Removed N08024 and N08026.ASTM International takes no position respecting the validity of any patent rights asserted in conne
27、ction 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.This standard is subject to revision at any time by the responsi
28、ble 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 International Headquarters. Your comments will receive careful co
29、nsideration 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 shown below.This standard is copyrighted by ASTM International, 100
30、 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).B464 103
