1、Designation: B608 18Standard Specification forWelded Copper-Alloy Pipe1This standard is issued under the fixed designation B608; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses ind
2、icates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification establishes the requirements for arc-welded pipe for use in brackish water or seawater pipingsystems.1.2 UnitsThe values stated in inch-poun
3、d units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.1.3 The following hazard statement pertains only to the testmethod described in 8.2 and 14.3.2 of this specification: T
4、hisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.4 This
5、international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (T
6、BT) Committee.2. Referenced Documents2.1 ASTM Standards:2B169/B169M Specification for Aluminum Bronze Sheet,Strip, and Rolled BarB171/B171M Specification for Copper-Alloy Plate andSheet for Pressure Vessels, Condensers, and Heat Ex-changersB846 Terminology for Copper and Copper AlloysE8/E8M Test Met
7、hods for Tension Testing of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE62 Test Methods for Chemical Analysis of Copper andCopperAlloys (Photometric Methods) (Withdrawn 2010)3E76 Test Methods for Chemical Analysis of Nickel-Co
8、pperAlloys (Withdrawn 2003)3E190 Test Method for Guided Bend Test for Ductility ofWeldsE255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper Alloys2.2 ASME Standards:4Boiler and Pressure Vessel Code, Rules fo
9、r Construction ofNuclear Facility Components, Section III, Division IBoiler and Pressure Vessel Code, NondestructiveExamination, Section VBoiler and Pressure Vessel Code, Pressure Vessels, SectionVIII, Division IBoiler and Pressure Vessel Code, Welding, Brazing, andFusing Qualifications, Section IX2
10、.3 AWS Standards:5A5.6/A5.6M Specification for Copper and Copper - AlloyElectrodes for Shielded Metal Arc WeldingA5.7/A5.7M Specification for Copper and Copper - AlloyBare Welding Rods and Electrodes3. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminology B
11、846.4. Ordering Information4.1 Include the following information in contracts or pur-chase orders for product furnished under this specification:4.1.1 ASTM specification designation and year of issue (forexample, B608 02),4.1.2 Copper Alloy UNS No. required (Section 5 andTable 1),1This specification
12、 is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct. 1, 2018. Published December 2018. Originallyapproved in 1976. Last previous edition approved in 2011 as B60811. DOI:10.1520
13、/B060818.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standa
14、rd is referenced onwww.astm.org.4Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.5Available from American Welding Society (AWS), 8669 NW 36 St., #130,Miami, FL 33166-6672, http:/www.aws.org.*A
15、Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization establi
16、shed in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.1.3 Dimensions required; diameter and wall thickness(Section 10),4.1.4 Unit length required, and4.1.5 Whe
17、n purchased for ASME Boiler and Pressure VesselCode application (19.2).4.2 The following options are available:4.2.1 Determination of chemical composition (6.1.1),4.2.2 Transverse Guided-Bend bend test (8.1),4.2.3 Hydrostatic test (8.2),4.2.4 Radiographic examination (8.3),4.2.4.1 The number of pipe
18、 lengths to be examined,4.2.5 Liquid Penetrant examination (8.4),4.2.6 Weld reinforcement removal, (Section 9),4.2.7 Certification (Sections 18 and 19), and4.2.8 Test Report (Section 20).5. Material and Manufacture5.1 Material:5.1.1 The pipe shall be made from annealed copper alloysheet or plate tha
19、t conforms to the requirements of Specifica-tion B169/B169M for Copper Alloys UNS Nos. C61300 andC61400 or Specification B171/B171M for Copper Alloys UNSNos. C70620 and C71520. These specifications reference TestMethods E62, E76, and E478 for the appropriate chemicalanalysis.5.2 Manufacture:5.2.1 We
20、lded joints shall be made either manually or auto-matically by an arc-welding process.5.2.2 Filler metal, if used in an arc-welding process, shallconform to one of the following specifications and classifica-tions shown for each base metal:Base Metal Copper AlloyUNS NumberFiller Metal AWS Specificat
21、ionA5.6/A5.6M A5.7/A5.7MC61300 ECuAl-A2 ERCuAl-A2C61400 ECuAlA2 ERCuAlA2C70620 ECuNi ERCuNiC71520 ECuNi ERCuNi5.2.3 Welding procedures and welding operators shall bequalified in accordance with the ASME Boiler and PressureVessel Code, Section IX.5.2.4 Each length of pipe may contain more than onelon
22、gitudinally welded joint.5.2.4.1 The welded joint shall be a full-penetration weld andmay have a reinforcing bead on each side; such reinforcementshall not be more than116 in. (1.6 mm) per side measured in theradial direction.5.2.4.2 At no place shall the thickness of the weld section beless than th
23、e thickness of the adjacent base metal.5.2.4.3 The contour of the weld bead shall be smooth,having no sharp valley or groove at the weld center or edges.5.2.4.4 Smooth concavity of the weld bead contour isacceptable, provided the minimum weld bead thickness is notless than the thickness of the adjac
24、ent base metal.5.2.4.5 Any offset of base metal edges at a weld that is notwithin the tolerance of 10.2.7 shall be flared ata3to1minimum taper over the width of the finished weld or, ifnecessary, by adding additional weld metal beyond what wouldotherwise be the edge of the weld. Such build-up weldin
25、g shallbe performed in accordance with the requirements of 5.2.3.5.2.4.6 Weld reinforcement may be removed at the option ofthe manufacturer or when specified by the purchaser.5.2.5 Weld defects shall be repaired by removal to soundmetal and re-welding. A repaired weld shall meet all require-ments of
26、 an original weld.5.2.6 Base metal defects such as slivers, inclusions, or lapsshall be repaired by removal to sound metal. Build-up weldingshall be performed when such removal reduces the wallthickness below the minimum allowed by the specification.Such build-up welding shall be performed in accord
27、ance withthe requirements of 5.2.3. The thickness of the repaired sectionshall meet the requirements of a welded joint.5.2.7 Pipe shall be furnished in the as-welded condition(Section 3).NOTE 1Although no restriction is placed on the size of pipe that maybe furnished under this specification, usage
28、is normally limited to nominalsizes 4 in. and larger in diameter.6. Chemical Composition6.1 The pipe material shall conform to the chemical com-positional requirements of Table 1 for the specified alloy.6.1.1 When the material of manufacturer has been certifiedto conform to the requirements of the s
29、trip specification towhich it was ordered, the determination of composition is notrequired of the tube manufacturer or supplier unless specifiedin the contract or purchase order.6.2 These composition limits do not preclude the presenceof other elements. When required, limits shall be establishedand
30、analysis required for unnamed elements by agreementbetween the manufacturer or supplier and the purchaser.6.3 When determining composition, copper may be taken asthe difference between the sum of results for specified elementsand 100 %.TABLE 1 Chemical RequirementsComposition, %Copper Alloy UNSNumbe
31、rCopperANickelinclCobaltAluminumLead,maxIronZinc,maxManganese,maxSulfur,maxPhosphorus, maxCarbon,maxTin SiC61300Bremainder 0.15 max 6.07.5 0.01 2.03.0 0.10 0.20 . 0.015 . 0.200.50 0.10C61400 remainder . 6.08.0 0.01 1.53.5 0.20 1.0 . 0.015 . . .C70620 86.5 % min 9.011.0 . 0.02 1.01.8 0.50 1.0 0.02 0.
32、02 0.05 . .C71520 65.0 % min 29.033.0 . 0.02 0.401.0 0.50 1.0 0.02 0.02 0.05 . .ASilver counting as copper.BWhen the product is for subsequent welding applications and is so specified by the purchaser, chromium shall be 0.05 % max, cadmium 0.05 % max, zinc 0.05 % max,and zirconium 0.05 % max.B608 18
33、26.4 When all elements in Table 1 for the specified alloy aredetermined the sum of results shall be as follows:Copper Alloy UNS No.Copper Plus Specified Elements,Percent, %, MinimumC61300 99.8C61400, C70620, C71520 99.57. Mechanical Property Requirements7.1 Transverse Tensional Strength:7.1.1 With t
34、he test taken across any weld, the pipe shall becapable of conforming to the value given in Table 2 for theparticular alloy.8. Performance Requirements8.1 Transverse Guided-Bend Test:8.1.1 The transverse-face and root-guided bend test shall betaken with the weld in the center of the test specimen an
35、d thereshall be no open defects exceeding 0.125 in. (3.18 mm)measured in any direction on the convex surface of thespecimen when tested in accordance with Test Method E190.Cracks originating from corners of the specimen shall not beconsidered.8.1.2 This test is not required unless specified in the c
36、ontractor purchase order.8.2 Hydrostatic Test:8.2.1 Each length of pipe shall be capable of withstandingan internal hydrostatic pressure sufficient to produce a fiberstress of 7 000 psi (48 MPa) without showing evidence ofweakness, defects, or leakage. (See 15.3.2.)8.2.1.1 This requirement is not re
37、commended for pipe withan outside diameter greater than 24 in. (610 mm).8.2.2 No pipe size need be tested at a hydrostatic pressuregreater than 1 000 psi (6 900 kPa).8.2.3 This test is not required unless specified in the contractor purchase order.8.3 Radiographic Examination:8.3.1 When specified in
38、 the contract or purchase order, pipeshall be examined in accordance with the procedure andacceptance criteria of the ASME Boiler and Pressure VesselCode, Section III, Division 1, or Section VIII, Division 1, asspecified.8.3.1.1 The number of pipe lengths to be examined shall bespecified by the purc
39、haser.8.3.2 All welded joints in any individual length of pipe shallbe radiographed completely.8.4 Liquid Penetration Examination:8.4.1 When specified in the contract or purchase order, allwelded joints in all lengths of pipe shall be examined, both theinside and outside surfaces, in accordance with
40、 the procedureand acceptance criteria of the ASME Boiler and Pressure VesselCode, Section III, Division 1, or Section VIII, Division 1, asspecified.9. Weld Reinforcement Removal9.1 When specified in the contract or purchase order, weldreinforcement shall be removed completely from the insidesurface
41、and outside surface longitudinal welded joints.9.2 Weld thickness shall conform to wall-thickness require-ments after removal of reinforcement.10. Dimensions, Mass, and Permissible Variations10.1 Dimensions:10.1.1 Pipe diameter shall be specified as a nominal diam-eter as shown in Table 3, Table 4,o
42、rTable 5.10.1.2 Pipe wall thickness shall be that shown in Table 3,Table 4,orTable 5 for the diameter and pressure classspecified.10.1.3 If a pipe outside diameter or wall thickness notspecified in Table 3, Table 4,orTable 5 is desired, the diameterand the wall thickness shall be specified in decima
43、l fractions ofan inch. (See section 21.1.1.)10.1.4 Pipe shall be furnished in 12 ft (3660 mm) lengthsunless otherwise specified.10.1.5 Circumferential welds, of the same quality as thelongitudinal welds, may be used to create pipe lengths that areordered longer than 12 ft (3660 mm).10.2 Permissible
44、Variations:10.2.1 Outside DiameterThe average outside diametershall not vary from the specified outside diameter by more thanthe tolerances specified in Table 6.10.2.2 RoundnessThe difference between the major andminor outside-diameter at any pipe cross section shall not begreater than the differenc
45、es specified in Table 7.10.2.3 Wall ThicknessThe wall thickness at any point ofthe pipe shall not vary from the specified wall-thickness bymore than the tolerances specified in Table 8.10.2.4 LengthThe length of any pipe shall be the specifiedlength plus or minus 0.500 in. (13 mm).10.2.5 Straightnes
46、sThe maximum curvature (depth ofarc), when measured as a deviation from a straightedge 10 ft(3.05 m) in length, shall not exceed 0.5 in. (13 mm).10.2.6 Squareness of CutThe departure from squarenessof the end of any pipe shall not exceed 0.016 in./in. (0.016mm/mm) of outside diameter.10.2.7 OffsetRa
47、dial misalignment of two edges to be buttwelded shall not exceed the offset tolerances specified in Table9.11. Workmanship, Finish, and Appearance11.1 WorkmanshipRoundness, straightness, ovality, anduniformity of contour shall be such as to make the productsuitable for the intended application.11.2
48、FinishThe inner and outer surfaces shall be such asto make the product suitable for the intended application.Repaired areas conforming to the requirements of this specifi-cation shall be acceptable.TABLE 2 Transverse Tensile StrengthCopper Alloy UNS Number Tensile Strength, min, ksi (MPa)AC61300 70
49、(485)C61400 70 (485)C70620 40 (275)C71520 50 (345)ASee Appendix X1.B608 18312. Sampling12.1 The lot size, portion size, and selection of samplepieces shall be as follows:12.1.1 Lot SizeA lot shall consist of the followingquantity, or fraction thereof, of pipe of the same alloy UNSNo., diameter, and wall thickness manufactured at the sametime:Outside Diameter, in. (mm) Lot Size, ft (m)Up to 10.750 (273) incl 1000 (305)Over 10.75 to 24 (273 to 610) incl 500 (152)Over 24 to 36 (610 to 914) 200 (61)Over 36 to 48 (914 to 1220) 100 (30.5)Over 48 (1220) 50 (
