1、Designation: B 677 05Standard Specification forUNS N08925, UNS N08354, and UNS N08926 Seamless Pipeand Tube1This standard is issued under the fixed designation B 677; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. 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 N08925, UNS N08354,and UNS N08926* seamless, cold-worked or hot-finished pipeand tube inten
3、ded for general corrosive service.1.2 ASTM International has adopted definitions wherebysome grades, such as UNS N08904 previously in this specifi-cation, were recognized as stainless steels, because thosegrades have iron as the largest element by mass percent. Suchgrades are under the oversight of
4、ASTM Committee A01 andits subcommittees. The products of N08904 previously coveredin this specification are now covered by Specifications A 269and A 312/A 312M.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI u
5、nits 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 identified in t
6、he appropriateMaterial Safety Data Sheet for this product/material as pro-vided by the manufacturer, to establish appropriate safety andhealth practices, and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A 269 Specification for Seamless
7、and Welded AusteniticStainless Steel Tubing for General ServiceA 312/A 312M Specification for Seamless, Welded, andHeavily Cold Worked Austenitic Stainless Steel PipesB 829 Specification for General Requirements for Nickeland Nickel Alloys Seamless Pipe and TubeE 527 Practice for Numbering Metals an
8、d Alloys (UNS)3. Terminology Definitions3.1 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 sizes.3.3 tube, na holl
9、ow 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 B 829 unless other-wise provided herein. In the case of conflict, the requirementsof this specificati
10、on 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 UNS number.5.1.2 A
11、STM 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 Nondestructive Testing (see 8.
12、2):1This specification is 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, 2005. Published July 2005. Originally approvedin 1980. Last prev
13、ious edition approved in 2004 as B 677 04a.* New designation established in accordance with ASTM E 527 and SAE J1086,Recommended Practice for Numbering Metals and Alloys (UNS).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. Fo
14、r Annual Book of ASTMStandards volume information, refer 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.5.1.6.1 Pressure RequirementsTest pressure if other thanrequired by 8.
15、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.5.1.8 CertificationState if certification is required.5.1.9 Samples for Product (Check) AnalysisState whethersample
16、s 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 of manu-facture, the purchase order must so state, indicating which testsor inspections are to be witnessed.6. Materials and Manufactu
17、re6.1 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 cooling by othermeans.7. Chemical Composition7.1
18、The material shall conform to the requirements as tochemical composition prescribed in Table 1. One test isrequired for each lot as defined in Specification B 829.7.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations per
19、Specification B 829.8. 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 B 829.8.2 Nondestructive Tests:Each pipe and tube shall be subjected
20、to either a hydrostatictest or a nondestructive electric test as described in Specifica-tion B 829. The purchaser may specify which 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 P
21、ermissible Variations9.1 The permissible variations in dimensions set forth inSpecification B 829 shall apply.10. Keywords10.1 N08925; N08354; N08926; seamless pipe; seamlesstubeTABLE 1 Chemical RequirementsElement UNS N08925 UNS N08926 UNS N08354Carbon, max 0.020 0.020 0.030Manganese, max 1.0 2.00
22、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 0.15 to 0.25 0.17 to 0
23、.24Iron balance balance balanceTABLE 2 Mechanical Properties of Pipe and TubeAlloy TemperTensile Strength,min, psi (MPa)Yield Strength, 0.2 %offset, min, psi (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
24、) 40UNS N08926 solution annealed 94 (650) 43 (295) 35B677052ASTM 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 pa
25、tent rights, and 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 ei
26、ther for revision 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
27、 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 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).B677053
