1、Designation: B725 05 (Reapproved 2014)1B725 18Standard Specification forWelded Nickel (UNS N02200/UNS N02201) and NickelCopper Alloy (UNS N04400) Pipe1This standard is issued under the fixed designation B725; the number immediately following the designation indicates the year oforiginal adoption or,
2、 in the case of revision, 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 NOTETable 4 was editorially corrected in December 2015.1. Scope Scope*1.1 This specificati
3、on covers nickel (UNS N02200) and low carbon nickel (UNS N02201 and UNS N04400) in the form ofwelded and annealed or welded and stress relieved pipe intended for general corrosive service and for mechanical applications.1.2 This specification covers outside diameter and nominal wall pipe in Schedule
4、s 5S, 10S, and 40S through 30-in. nominal pipesize shown in ANSI B36.19 (see Table 1). Pipe having other dimensions may be furnished provided such pipe complies with allother requirements of this specification.1.3 The values stated in inch-pound units are to be regarded as standard. The values given
5、 in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 The following precautionary caveat pertains only to the test methods portion, Section 12, of this specification: This standarddoes not purport to address all of the safe
6、ty problems, if any, associated with its use. It is the responsibility of the user of thisstandard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet(MSDS)(SDS) for this product/material as provided by the manufacturer, to establish appropria
7、te safety safety, health, andhealthenvironmental practices, and determine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for th
8、e Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test
9、 Data to Determine Conformance with SpecificationsE39 Methods for Chemical Analysis of Nickel (Withdrawn 1995)3E213 Practice for Ultrasonic Testing of Metal Pipe and TubingE571 Practice for Electromagnetic (Eddy-Current) Examination of Nickel and Nickel Alloy Tubular Products2.2 ANSI Standards:4B 1.
10、20.1 Pipe ThreadsB 36.10 Welded and Seamless Wrought Steel PipeB 36.19 Stainless Steel Pipe2.3 ASME Boiler and Pressure Vessel CodeCode:5Section IX Welding and Brazing Qualifications1 This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct r
11、esponsibility of Subcommittee B02.07 on RefinedNickel and Cobalt and Their Alloys.Current edition approved Oct. 1, 2014April 1, 2018. Published October 2014April 2018. Originally approved in 1983. Last previous edition approved in 20092014 asB725 05 (2009).(2014)1. DOI: 10.1520/B0725-05R14E01.10.152
12、0/B0725-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical sta
13、ndard is referenced on www.astm.org.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.5 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-
14、5990, http:/www.asme.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends tha
15、t users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West C
16、onshohocken, PA 19428-2959. United States13. Ordering Information3.1 Orders for material under this specification shall include the following information:3.1.1 Alloy name or UNS number,3.1.2 ASTM designation and date of issue,3.1.3 Condition (temper) (Table 2),3.1.4 Dimensions:3.1.4.1 Nominal pipe s
17、ize or outside diameter and schedule number or nominal wall thickness (Table 1),3.1.4.2 Length (specific or random),3.1.5 Quantityfeet or metres, or number of pieces,3.1.6 CertificationState if certification is required (Section 15),3.1.7 Samples for Product (Check) AnalysisState whether samples for
18、 product (check) analysis should be furnished (9.2),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 size represent their nominal wall dimensions.NominalPipe Size, in.OutsideDiameter
19、Nominal Wall ThicknessSchedule5SASchedule10SASchedule40SSchedule80Sin. mm in. mm in. mm in. mm in. mm18 0.405 10.29 . . 0.049 1.245 0.068 1.727 0.095 2.4114 0.540 13.72 . . 0.065 1.651 0.088 2.235 0.119 3.0238 0.675 17.15 . 0.065 1.651 0.091 2.311 0.126 3.2012 0.840 21.34 0.065 1.651 0.083 2.108 0.1
20、09 2.768 0.147 3.7334 1.050 26.67 0.065 1.651 0.083 2.108 0.113 2.870 0.154 3.911 1.315 33.40 0.065 1.651 0.109 2.768 0.133 3.378 0.179 4.55114 1.660 42.16 0.065 1.651 0.109 2.768 0.140 3.556 0.191 4.85112 1.900 48.26 0.065 1.651 0.109 2.768 0.145 3.683 0.200 5.082 2.375 60.33 0.065 1.651 0.109 2.76
21、8 0.154 3.912 0.218 5.54212 2.875 73.03 0.083 2.108 0.120 3.048 0.203 5.156 0.276 7.013 3.500 88.90 0.083 2.108 0.120 3.048 0.216 5.486 0.300 7.62312 4.000 101.6 0.083 2.108 0.120 3.048 0.226 5.740 0.318 8.084 4.500 114.3 0.083 2.108 0.120 3.048 0.237 6.020 0.337 8.565 5.563 141.30 0.109 2.77 0.134
22、3.40 0.258 6.55 0.375 9.526 6.625 168.28 0.109 2.77 0.134 3.40 0.280 7.11 0.432 10.978 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.500 12.7010 10.750 273.05 0.134 3.40 0.165 4.19 0.365 9.27 0.500B 12.70B12 12.750 323.85 0.156 3.96 0.180 4.57 0.375B 9.52B 0.500B 12.70B14 14.000 355.60 0.156 3.96
23、0.188B 4.78B . . . . . .16 16.000 406.40 0.165 4.19 0.188B 4.78B . . . .18 18.000 457.20 0.165 4.19 0.188B 4.78B . . . .20 20.000 508.00 0.188 4.78 0.218B 5.54B . . . .22 22.000 558.80 0.188 4.78 0.218B 5.54B . . . .24 24.000 609.60 0.218 5.54 0.250 6.35 . . . .30 30.000 762.00 0.250 6.35 0.312 7.92
24、 . . . .A Schedules 5S and 10S wall thicknesses do not permit threading in accordance with ANSI B1.20.1.B These do not conform to ANSI B36.10.TABLE 2 Mechanical Properties of Pipe and TubeCondition andSizeTensile Strength,min, psi (MPa)Yield Strength (0.2 % offset),min, psi (MPa)Elongation in 2 in.o
25、r 50 mm (or 4D),min, %NickelLow-CarbonNickelUNSN04400 NickelLow-CarbonNickelUNSN04400 NickelLow-CarbonNickelUNSN04400Annealed5 in. (127mm)and underoutsidediameter55 000 (380) 50 000 (345) 70 000 (480) 15 000 (105) 12 000 (80) 28 000 (195) 35 35 35Over 5 in.(127 mm)in outsidediameter55 000 (380) 50 0
26、00 (345) 70 000 (480) 12 000 (80) 10 000 (70) 25 000 (170) 40 40 35Stress-relievedAll sizes 65 000 (450) 60 000 (415) 85 000 (585) 40 000 (275) 30 000 (205) 55 000 (380) 15 15 15B725 1823.1.8 Purchaser InspectionIf the purchaser wishes to witness tests or inspection of material at the place of manuf
27、acture, thepurchase order must so state indicating which tests or inspections are to be witnessed (Section 13),3.1.9 Nondestructive Tests (see 6.4)Specify either Test Category 1 or 2. If Test Category 1 is required, specify if either ahydrostatic, eddy-current or ultrasonic test is to apply. If Test
28、 Category 2 is required, specify if either an eddy-current or ultrasonictest is to apply. See Section S1.3.1.10 Supplementary Requirements.4. Materials and Manufacture4.1 Pipe shall be made from flat-rolled alloy by an automatic welding process with no addition of filler metal. Subsequent towelding
29、and prior to final heat treatment, the pipe shall be cold worked to assure that optimum corrosion resistance in the weldarea and base metal will be developed during heat treatment.4.2 Pipe shall be furnished with a scale free finish. When bright annealing is used, descaling is not necessary.5. Chemi
30、cal Composition5.1 The material shall conform to the requirements as to chemical composition prescribed in Table 3.5.2 If a product (check) analysis is performed by the purchaser, the material shall conform to the product (check) analysisvariations in Table 3.6. Mechanical Properties and Other Requi
31、rements6.1 Mechanical PropertiesThe material shall conform to the requirements for mechanical properties prescribed in Table 2.6.2 Flattening Test RequirementsFlattening test specimens made in accordance with 12.3 shall show no cracks or breaks onthe inside, outside, or end surfaces.6.3 Transverse G
32、uided Bend TestSee 12.6.3 for acceptance criteria.6.4 Nondestructive Tests:6.4.1 Pipe shall be subjected to the nondestructive tests outlined in the following test categories.6.4.1.1 Category 1Hydrostatic, eddy-current, or ultrasonic test at the manufacturers option unless the purchaser specifies in
33、accordance with 3.1.9.6.4.1.2 Category 2Hydrostatic plus eddy-current or ultrasonic test at the manufacturers option unless the purchaser specifiesin accordance with 3.1.9.6.4.1.3 The manufacturer shall have the option to use Test Category 1 or 2 if the purchaser does not specify the test categoryop
34、tions in accordance with 3.1.9.6.4.2 Hydrostatic TestWhen tested in accordance with the requirements of 12.4, any pipe that leaks shall be rejected. Anyleaking area may be cut out and the pipe retested.6.4.3 Acceptance and RejectionPipe producing a signal equal to or greater than the calibration imp
35、erfection shall be subjectto rejection.6.4.3.1 Test signals produced by imperfections that cannot be identified or produced by cracks or crack-like imperfections shallresult in rejection of the pipe subject to rework and retest. To be accepted, the pipe must pass the same electric test to which itwa
36、s originally subjected provided that the dimensional requirements are met.6.4.3.2 If the imperfection is judged as injurious, the pipe shall be rejected but may be reconditioned and retested providing thedimensional requirements are met. To be accepted, retested pipe shall meet the original electric
37、 test requirements.6.4.3.3 If the imperfection is explored to the extent that it can be identified as noninjurious, the pipe may be accepted withoutfurther test, providing the imperfection does not encroach on the minimum wall thickness.TABLE 3 Chemical RequirementsElementComposition, % Product (Che
38、ck) AnalysisVariations, under min orover max, of the SpecifiedLimit of ElementNickel (UNS N02200)Low-Carbon Nickel(UNS N02201)Nickel-Copper(UNS N04400)Nickel, min 99.0 99.0 63.0 0.60Copper, max 0.25 0.25 28.034.0 0.03Iron, max 0.40 0.40 2.5 0.03Manganese, max 0.35 0.35 2.0 0.03Carbon, max 0.15 . 0.3
39、 0.01Carbon, max . 0.02 . 0.005Silicon, max 0.35 0.35 0.5 0.03Sulfur, max 0.01 0.01 0.024 0.003B725 1837. Dimensions and Permissible Variations7.1 The outside diameter shall not exceed the permissible variations prescribed in Table 4.7.1.1 Pipe having a specified wall thickness that is 3 % or less o
40、f the outside diameter cannot be straightened properly withouta certain amount of ovality resulting in the diameter. The limits to this ovality are stated in Footnote B of Table 4.7.2 The wall thickness shall not vary from nominal by more than 61212 %.7.3 StraightnessMaterial shall be reasonably str
41、aight and free of bends or kinks.7.4 LengthVariations from the specified length shall not exceed the amounts prescribed in Table 5.8. Workmanship, Finish, and Appearance8.1 The material shall be uniform in quality and temper, smooth, commercially straight, and free of injurious imperfections.9. Samp
42、ling9.1 Lots of Chemical Analysis and Mechanical Testing.9.1.1 A lot for chemical analysis shall consist of one heat.9.1.2 Alot for mechanical properties and flattening or transverse guided bend testing shall consist of all material from the sameheat, nominal size (excepting length), and condition (
43、temper).9.2 Test Material Selection.9.2.1 Chemical AnalysisRepresentative samples shall be taken during pouring or subsequent processing.9.2.1.1 Product (check) analysis shall be wholly the responsibility of the purchaser.9.2.2 Mechanical Properties and Flattening TestingSamples of the material to p
44、rovide test specimens shall be taken from suchlocations in each lot as to be representative of that lot.TABLE 4 Permissible Variations in Outside DiameterA,BNPS DesignatorPermissible Variations in Outside DiameterOver Underin. mm in. mm18 to 112, incl 164 (0.015) 0.4 132 (0.031) 0.8Over 112 to 4, in
45、cl 132 (0.031) 0.8 132 (0.031) 0.8Over 4 to 8, incl 116 (0.062) 1.6 132 (0.031) 0.8Over 8 to 18, incl 332 (0.093) 2.4 132 (0.031) 0.8Over 8 to 18, incl 332 (0.093) 2.4 132 (0.031) 0.8Over 18 to 26, incl 18 (0.125) 3.2 132 (0.031) 0.8Over 26 to 34, incl 532 (0.156) 4.0 132 (0.031) 0.8Over 34 to 48, i
46、ncl 316 (0.187) 4.8 132 (0.031) 0.8Editorially corrected.A These permissible variations in outside diameter apply only to material asfinished at the mill before subsequent swaging, expanding, bending, polishing, orother fabricating operations.B Ovality is the difference between the maximum and the m
47、inimum outsidediameter measured at any one cross section. There is no additional tolerance forovality on material having a nominal wall thickness for more than 3 % of theoutside diameter. On this material, the average of the maximum and the minimumoutside diameter measurements will fall within outsi
48、de diameter tolerance shownin Table 4. An additional ovality tolerance of twice the outside diameter tolerancespreads shown in Table 4, applied 12, is allowed for material having a nominalwall thickness of 3 % or less of the nominal outside diameter.TABLE 5 Permissible Variations in LengthAOutside D
49、iameter, in.(mm)Cut Length, in. (mm)Over UnderUnder 2 (50.8) 18 (3.18) 02 (50.8) and over 316 (4.75) 0A These permissible variations in length apply to pipe before bending. They applyto cut lengths up to and including 24 ft (7.3 m). For lengths over 24 ft, an additionalover-tolerance of 18 in. (3.18 mm) for each 10 ft (3.0 m) or fraction thereof shall bepermissible up to a maximum additional over-tolerance of 12 in. (12.7 mm).B725 18410. Number of Tests10.1 Chemical AnalysisOne test per lot.10.2 Mechanical Proper
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