1、Designation: B677 05 (Reapproved 2010)1Standard Specification forUNS N08925, UNS N08354, and UNS N08926 Seamless Pipeand Tube1This standard is issued under the fixed designation B677; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTETable 2 heading for Tensile Strength and Yield Strength was editorially corrected from psi to ksi in May 2012.1.
3、 Scope1.1 This specification covers UNS N08925, UNS N08354,and UNS N089262seamless, cold-worked or hot-finished pipeand tube intended for general corrosive service.1.2 ASTM International has adopted definitions wherebysome grades, such as UNS N08904 previously in this specifi-cation, were recognized
4、 as stainless steels, because thosegrades have iron as the largest element by mass percent. Suchgrades are under the oversight of ASTM Committee A01 andits subcommittees. The products of N08904 previously coveredin this specification are now covered by Specifications A269and A312/A312M.1.3 The value
5、s stated in inch-pound units are to be regardedas standard. The values given in parentheses 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 i
6、ts use. It is theresponsibility of the user of this standard to become familiarwith all 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
7、the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3A269 Specification for Seamless and Welded AusteniticStainless Steel Tubing for General ServiceA312/A312M Specification for Seamless, Welded, andHeavily Cold Worked Austenitic Stainless Steel PipesB829
8、 Specification for General Requirements for Nickeland Nickel Alloys Seamless Pipe and TubeE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)3. Terminology3.1 average diameter, nthe average of the maximum andminimum outside diameters as determined at any one crosssecti
9、on of the tube or pipe.3.2 pipe, nseamless tube conforming to the particulardimensions commercially known as standard pipe sizes.3.3 tube, na hollow product of round or any other crosssection having a continuous periphery.4. General Requirements4.1 Material furnished under this specification shall c
10、on-form to the requirements of Specification B829 unless other-wise provided herein. In the case of conflict, the requirementsof this specification shall take precedence.5. Ordering Information5.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material or
11、dered under thisspecification. Examples of such requirements include, but arenot limited to, the following:5.1.1 Alloy name or UNS number.5.1.2 ASTM designation and year of issue.5.1.3 Finish.5.1.4 Dimensions:5.1.4.1 TubeOutside diameter and the average or mini-mum wall thickness.5.1.4.2 PipeStandar
12、d pipe size and schedule.5.1.4.3 Length, (cut to length or random).5.1.5 Quantity (feet or number of pieces).5.1.6 Nondestructive Testing (see 8.2):5.1.6.1 Pressure RequirementsTest pressure if other thanrequired by 8.2.1.1This specification is under the jurisdiction of ASTM Committee B02 onNonferro
13、us Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved Oct. 1, 2010. Published October 2010. Originallyapproved in 1980. Last previous edition approved in 2005 as B677 05. DOI:10.1520/B0677-05R10E01.2New desi
14、gnation established in accordance with ASTM E527 and SAE J1086,Recommended Practice for Numbering Metals and Alloys (UNS).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, ref
15、er to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.1.6.2 Specify if an electric test is to be performed.5.1.7 EndsPlain ends cut and deburred will be furnished.If threaded e
16、nds or ends beveled for welding are desired, givedetails.5.1.8 CertificationState if certification is required.5.1.9 Samples for Product (Check) AnalysisState whethersamples for product (check) analysis should be furnished (see7.2).5.1.10 Purchaser InspectionIf the purchaser wishes towitness tests o
17、r inspection of material at the place of manu-facture, the purchase order must so state, indicating which testsor inspections are to be witnessed.6. Materials and Manufacture6.1 The material shall be supplied in the solution-treatedcondition.NOTE 1The recommended heat treatment shall consist of heat
18、ing to atemperature of 2010 to 2100F (1100 to 1150C) for UNS N08925 andUNS N08926, followed by quenching in water or rapid cooling by othermeans.7. Chemical Composition7.1 The material shall conform to the requirements as tochemical composition prescribed in Table 1. One test isrequired for each lot
19、 as defined in Specification B829.7.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations per Specification B829.8. Mechanical Properties and Other Requirements8.1 Mechanical PropertiesThe material shall conform tothe mecha
20、nical properties prescribed in Table 2. One test isrequired for each lot as defined in Specification B829.8.2 Nondestructive Tests:Each pipe and tube shall be subjected to either a hydrostatictest or a nondestructive electric test as described in Specifica-tion B829. The purchaser may specify which
21、test is to be used.8.2.1 Hydrostatic Test:The fiber stress for the purpose of calculating the hydrostatictest pressure shall be 20 000 psi (138 Mpa).9. Dimensions and Permissible Variations9.1 The permissible variations in dimensions set forth inSpecification B829 shall apply.10. Keywords10.1 N08925
22、; N08354; N08926; seamless pipe; seamlesstubeASTM International takes no position 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, an
23、d the riskof infringement of such rights, are entirely their own responsibility.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 revisi
24、on of this standard or for additional standardsand should be addressed to ASTM 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 sh
25、ouldmake your views known to the ASTM Committee on Standards, at the address shown 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 obt
26、ained 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/).TABLE 1 Chemical Requir
27、ementsElement UNS N08925 UNS N08926 UNS N08354Carbon, max 0.020 0.020 0.030Manganese, max 1.0 2.00 1.00Phosphorus, max 0.045 0.03 0.030Sulfur, max 0.030 0.01 0.010Silicon, max 0.50 0.5 1.00Nickel 24.0 to 26.0 24.00 to 26.00 22.0 to 240Chromium 19.0 to 21.0 19.00 to 21.00 34.0 to 36.0Molybdenum 6.0 t
28、o 7.0 6.0 to 7.0 7.0 to 8.0Copper 0.8 to 1.5 0.5 to 1.5 .Nitrogen 0.1 to 0.2 0.15 to 0.25 0.17 to 0.24Iron balance balance balanceTABLE 2 Mechanical Properties of Pipe and TubeAlloy TemperTensile Strength,min, ksi (MPa)Yield Strength, 0.2 %offset, min, ksi (MPa)Elongation in 2 in. or50 mm (or 4D), min, %UNS N08925 solution annealed 87 (600) 43 (300) 40UNS N08354 solution annealed 93 (640) 43 (295) 40UNS N08926 solution annealed 94 (650) 43 (295) 35Editorially corrected.B677 05 (2010)12
