1、Designation: B677 05 (Reapproved 2016)Standard 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.1. Scope1.1 This specification covers UNS N08925, UNS N08354,and UNS N089262seamless, cold-worked or hot-finished pipe
3、and tube intended for general corrosive service.1.2 ASTM International has adopted definitions wherebysome grades, such as UNS N08904 previously in thisspecification, were recognized as stainless steels, because thosegrades have iron as the largest element by mass percent. Suchgrades are under the o
4、versight 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 values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversion
5、s 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 hazards including those identi
6、fied in the appropriateSafety Data Sheet (SDS) for this product/material as providedby the manufacturer, to establish appropriate safety and healthpractices, and determine the applicability of regulatory limi-tations prior to use.2. Referenced Documents2.1 ASTM Standards:3A269 Specification for Seam
7、less and Welded AusteniticStainless Steel Tubing for General ServiceA312/A312M Specification for Seamless, Welded, andHeavily Cold Worked Austenitic Stainless Steel PipesB829 Specification for General Requirements for Nickel andNickel Alloys Seamless Pipe and TubeE527 Practice for Numbering Metals a
8、nd Alloys in theUnified Numbering System (UNS)3. Terminology3.1 average diameter, nthe average of the maximum andminimum outside diameters as determined at any one crosssection of the tube or pipe.3.2 pipe, nseamless tube conforming to the particulardimensions commercially known as standard pipe siz
9、es.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 con-form to the requirements of Specification B829 unless other-wise provided herein. In the case of conflict, the requirements
10、of this specification shall take precedence.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 Alloy name or
11、 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 PipeStandard 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 Nondestruct
12、ive Testing (see 8.2):5.1.6.1 Pressure RequirementsTest pressure if other thanrequired by 8.2.1.5.1.6.2 Specify if an electric test is to be performed.5.1.7 EndsPlain ends cut and deburred will be furnished.If threaded ends or ends beveled for welding are desired, givedetails.1This specification is
13、under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved June 1, 2016. Published June 2016. Originallyapproved in 1980. Last previous edition approved in 2
14、010 as B677 05 (2010)1.DOI: 10.1520/B0677-05R16.2New designation 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.
15、 For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.1.8 CertificationState if certification is required.5.1.9 Samples
16、for Product (Check) AnalysisState whethersamples for product (check) analysis should be furnished (see7.2).5.1.10 Purchaser InspectionIf the purchaser wishes towitness tests or inspection of material at the place ofmanufacture, the purchase order must so state, indicatingwhich tests or inspections a
17、re 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 heating to atemperature of 2010 to 2100F (1100 to 1150C) for UNS N08925 andUNS N08926, followed by quenching in water or rapid cool
18、ing 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 as defined in Specification B829.7.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to
19、 the product (check)analysis variations per Specification B829.8. Mechanical Properties and Other Requirements8.1 Mechanical PropertiesThe material shall conform tothe mechanical properties prescribed in Table 2. One test isrequired for each lot as defined in Specification B829.8.2 Nondestructive Te
20、sts: Each pipe and tube shall besubjected to either a hydrostatic test or a nondestructive electrictest as described in Specification B829. The purchaser mayspecify which test is to be used.8.2.1 Hydrostatic Test: The fiber stress for the purpose ofcalculating the hydrostatic test pressure shall be
21、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; N08354; N08926; seamless pipe; seamlesstubeASTM International takes no position respecting the validity of any patent rights as
22、serted 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.This standard is subject to revision at any time
23、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 International Headquarters. Your comments will rec
24、eive 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 shown below.This standard is copyrighted by ASTM Int
25、ernational, 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 thro
26、ugh the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Chemical RequirementsElement UNS N08925 UNS N08926 UNS N08354Carbon, max 0.020 0.020 0.030Manga
27、nese, 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 to 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 0.1
28、5 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) 35B677 05 (2016)2
