1、Designation: B 673 05e1Standard Specification forUNS N08925, UNS N08354, and UNS N08926 Welded Pipe1This standard is issued under the fixed designation B 673; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTETable 2 was editorially corrected in October 2006.1. Scope1.1 This specification covers UNS N08925, UNS N08354,and UNS N08926* welded p
3、ipe for general corrosion applica-tions.1.2 This specification covers pipe sizes in schedules shownin Table 1.1.3 ASTM International has adopted definitions wherebysome grades, such as UNS N08904, previously in this speci-fication were recognized as stainless steels, because thosegrades have iron as
4、 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 Specification A 312/A 312M.1.4 The values stated in inch-pound units are to be regardedas standard. T
5、he values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 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
6、to become familiarwith all hazards including those identified in the 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. Referen
7、ced Documents2.1 ASTM Standards:2A 312/A 312M Specification for Seamless, Welded, andHeavily Cold Worked Austenitic Stainless Steel PipesB 775 Specification for General Requirements for Nickeland Nickel Alloy Welded PipeE 527 Practice for Numbering Metals and Alloys (UNS)2.2 ANSI Standards:3B2.1 Pip
8、e ThreadsB31.10 Power PipingB36.10 Welded and Seamless Wrought Steel PipeB36.19 Stainless Steel Pipe33. Classification3.1 Class 1Welded, cold worked, solution treated, andnondestructively tested in accordance with 8.3.1.3.2 Class 2Welded, cold worked, solution treated, andnondestructively tested in
9、accordance with 8.3.2.3.3 Class 3As welded, solution treated, and nondestruc-tively tested in accordance with 8.3.1.4. General Requirement4.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B 775unless otherwise provided herein.5. Ordering I
10、nformation5.1 Orders for material under this specification shouldinclude the following information:5.1.1 Alloy name or UNS number,5.1.2 Class,5.1.3 Quantity (feet or number of lengths),5.1.4 Size (nominal size or outside diameter and schedulenumber or average wall thickness),5.1.5 LengthSpecify cut
11、length or random,5.1.6 CertificationState if certification or a report of testresults is required,5.1.7 Purchaser InspectionState which tests or inspec-tions are to be witnessed,5.1.8 EndsPlain ends cut and deburred will be furnished,unless otherwise specified, and5.1.9 Samples for Product (Check) A
12、nalysisState whethersamples shall be furnished.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
13、 2005. Originally approvedin 1980. Last previous edition approved in 2004 as B 673 04.* New designation established in accordance with ASTM E 527 and SAE J1086,Practice for Numbering Metals and Alloys (UNS).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer
14、 Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM Internation
15、al, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Materials and Manufacture6.1 Pipe shall be made from flat-rolled alloy by an auto-matic welding process with no addition of filler metal. Subse-quent to welding and before final solution treatment, Class 1and
16、Class 2 material shall be cold worked either in both weldand base metal or in weld metal only.NOTE 1The recommended heat treatment shall consist of heating to atemperature of 1975 to 2150F 1080 to 1180C for UNS N08354, or2010 to 2100F 1100 to 1150C for UNS N08925 and UNS N08926,followed by quenching
17、 in water or rapid cooling by other means.6.2 Pipe shall be furnished with oxide removed. Whensolution treatment is performed in a protective atmosphere,descaling is not necessary.NOTE 2Pipe produced with the addition of filler metal is available.The manufacturer must be consulted for applicable req
18、uirements.7. Chemical Composition7.1 The material shall conform to the requirements as tochemical composition prescribed in Table 2.7.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations prescribed in Specification B 775.8
19、. Mechanical Properties and Other Requirements8.1 Tension TestThe tensile properties of the material atroom temperature shall conform to those shown in Table 3.8.1.1 One tension test shall be made on each lot of pipe.8.2 Flattening TestOne flattening test shall be made on aspecimen from one end of o
20、ne pipe from each lot.8.3 Nondestructive Tests:TABLE 1 Dimensions of Welded PipeNOTE 1The following table is a partial reprint of Table 1 of ANSI B36.19.NOTE 2The decimal thicknesses listed for the respective pipe sizes represent their nominal wall dimensions.NOTE 31 in. = 25.4 mm.NominalPipe Size,i
21、n.Outside DiameterNominal Wall Thickness, in.Schedule 5SASchedule 10SASchedule 40S Schedule 80S Schedule 160S18 0.405 10.29 . . 0.049 1.25 0.068 1.73 0.095 2.41 . .14 0.540 13.72 . . 0.065 1.65 0.088 2.24 0.119 3.02 . .38 0.675 17.15 . . 0.065 1.65 0.091 2.31 0.126 3.20 . .12 0.840 21.34 0.065 1.65
22、0.083 2.11 0.109 2.77 0.147 3.73 0.187 4.7534 1.050 26.67 0.065 1.65 0.083 2.11 0.113 2.87 0.154 3.91 0.218 5.541 1.315 33.40 0.065 1.65 0.109 2.77 0.133 3.38 0.179 4.46 0.250 6.35114 1.660 42.16 0.065 1.65 0.109 2.77 0.140 3.56 0.191 4.85 0.250 6.35112 1.900 48.26 0.065 1.65 0.109 2.77 0.145 3.68 0
23、.200 5.08 0.281 7.142 2.375 60.33 0.065 1.65 0.109 2.77 0.154 3.91 0.218 5.54 0.343 8.71212 2.875 73.03 0.083 2.11 0.120 3.05 0.203 5.16 0.276 7.01 0.375 9.523 3.500 88.90 0.083 2.11 0.120 3.05 0.216 5.49 0.300 7.62 0.438 11.12312 4.000 101.60 0.083 2.11 0.120 3.05 0.226 5.74 0.318 8.08 . .4 4.500 1
24、14.30 0.083 2.11 0.120 3.05 0.237 6.02 0.337 8.56 0.581 13.415 5.563 141.30 0.109 2.77 0.134 3.40 0.258 6.55 0.375 9.52 0.625 15.886 6.625 168.30 0.109 2.77 0.134 3.40 0.280 7.11 0.432 10.97 0.718 18.248 8.625 219.07 0.109 2.77 0.148 3.76 0.322 8.18 0.500 12.70 0.906 23.0110 10.750 273.05 0.134 3.40
25、 0.165 4.19 0.365 9.27 0.500B12.70B1.125 28.5812 12.75 323.85 0.156 3.96 0.180 4.57 0.375 9.52 0.500B12.70B1.312 33.3214 14.00 355.60 0.156C3.96 0.188 4.78 0.375 9.52 0.500 12.70 . .16 16.00 406.40 0.165C4.19 0.188 4.78 0.375 9.52 0.500 12.70 . .18 18.00 457.20 0.165C4.19 0.188 4.78 0.375 9.52 0.500
26、 12.70 . .20 20.00 508.00 0.188C4.78 0.218C5.54 0.375 9.52 0.500 12.70 . .22 22.00 558.80 0.188C4.78 0.218C5.54 0.375 9.52 0.500 12.70 . .24 24.00 609.60 0.218C5.54 0.250 6.35 0.375 9.52 0.500 12.70 . .30 30.00 762.00 0.250C6.35 0.312 7.92 0.375 9.52 0.500 12.70 . .ASchedule 5S and 10S wall thicknes
27、ses do not permit threading in accordance with ANSI B2.1.BThese do not conform to ANSI B31.10.CThese do not conform to ANSI for Welded and Seamless Wrought Steel Pipe (ANSI B36.10).TABLE 2 Chemical RequirementsElementUNSN08925 UNN08354UNSN08926Carbon, max 0.020 0.030 0.020Manganese, max 1.0 1.00 2.0
28、0Phosphorus, max 0.045 0.030 0.03Sulfur, max 0.030 0.010 0.01Silicon, max 0.50 1.00 0.5Nickel 24.0 to 26.0 34.0 to 36.0 24.00 to 26.00Chromium 19.0 to 21.0 22.0 to 24.0 19.00 to 21.00Molybdenum 6.0 to 7.0 7.0 to 8.0 6.0 to 7.0Copper 0.8 to 1.5 . 0.5 to 1.5Nitrogen 0.1 to 0.2 0.17 to 0.24 0.15 to 0.2
29、5IronAbalance balance balanceAIron shall be determined arithmetically by difference. UNS N08925 was editorially corrected.TABLE 3 Mechanical PropertiesAlloy TemperTensileStrength,min, psiMPaYieldStrength,0.2 %offset, min,psi MPaElongationin 2 in. or50 mm, (or4D), min,%UNS N08925 solution annealed 87
30、 600 43 300 40UNS N08354 solution annealed 93 640 43 295 40UNS N08926 solution annealed 94 650 43 295 35B67305e128.3.1 Class 1 and Class 3Each piece in each lot shall besubjected to one of the following four tests: hydrostatic,pneumatic (air underwater), eddy-current, or ultrasonic.8.3.2 Class 2Each
31、 piece in each lot shall be subjected toa leak test and an electric test as follows:8.3.2.1 Leak TestHydrostatic or pneumatic (air underwa-ter).8.3.2.2 Electric TestEddy-current or ultrasonic.8.3.3 The manufacturer shall have the option to test Class 1or Class 2 and select the nondestructive test me
32、thods, if notspecified by the purchaser.9. Dimensions and Permissible Variations9.1 The outside diameter and nominal wall thickness shallnot exceed the permissible variations prescribed in Specifica-tion B 775.10. Keywords10.1 UNS N08925; UNS N08354; UNS N08926; weldedpipeASTM International takes no
33、 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, and the riskof infringement of such rights, are entirely their own respons
34、ibility.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 t
35、o 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 shouldmake your views known to the ASTM Committee on Standards, at the add
36、ress 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).B67305e13
