1、Designation: B 552 08Standard Specification forSeamless and Welded CopperNickel Tubes for WaterDesalting Plants1This standard is issued under the fixed designation B 552; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、last 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. Scope*1.1 This specification establishes requirements for seamlessand welded copper-nickel tubes from 0.250 to 2.125 in. (6.35
3、to 54.0 mm) in diameter for use in heat exchangers in waterdesalting plants. The following alloys are involved:Copper orCopper Alloy UNS No.Type of MetalC70600 90-10 copper-nickelC70620 90-10 copper-nickel(Modified for Welding)C71500 70-30 copper-nickelC71520 70-30 copper-nickel(Modified for Welding
4、)C71640 copper-nickel-iron-manganeseC72200 copper-nickel1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following safety haza
5、rd caveat pertains only to thetest methods of Section 16 described in this specification: Thisstandard 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 and healthpractices and
6、determine the applicability of regulatory limita-tions prior to its use.2. Referenced Documents2.1 ASTM Standards:2B 111/B 111M Specification for Copper and Copper-AlloySeamless Condenser Tubes and Ferrule StockB 153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubingB 154
7、 Test Method for Mercurous Nitrate Test for CopperAlloysB 543 Specification for Welded Copper and Copper-AlloyHeat Exchanger TubeB 601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysB 858 Test Method for Ammonia Vapor T
8、est for Determin-ing Susceptibility to Stress Corrosion Cracking in CopperAlloysE3 Guide for Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E76 Test Methods for Che
9、mical Analysis of Nickel-CopperAlloys3E118 Test Methods for Chemical Analysis of Copper-Chromium AlloysE 243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Copper and Copper-Alloy TubesE 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 478
10、 Test Methods for Chemical Analysis of CopperAlloysE 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 112 Test Methods for Determining Average Grain Size3. Terminology3.1 For definitions of terms related to copper and copperalloys, refer to Terminolo
11、gy B 846.4. Classification4.1 Tubes furnished to this specification are classified intotwo types, as follows:4.1.1 Seamless tube and4.1.2 Welded tube.5. Ordering Information5.1 Orders for products under this specification shall includethe following information:5.1.1 ASTM designation and year of issu
12、e,5.1.2 Copper Alloy UNS number designation,5.1.3 Whether seamless or welded (Section 4),1This specification 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 April 1, 2008. Publi
13、shed April 2008. Originallyapproved in 1971. Last previous edition approved in 2004 as B 552 98 (2004).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
14、 Document Summary page onthe ASTM website.3Withdrawn.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.1.4 Temper (Section 8),5.1.5 Dimensions: diameter and wall thick
15、ness (whetherminimum or nominal), and length (Section 12),5.1.6 Total number of pieces of each size, and5.1.7 How furnished, whether in straight lengths or coils.5.2 The following options are available and, when required,are to be specified at the time of placing of the order:5.2.1 Hydrostatic test
16、(11.3),5.2.2 Pneumatic test (11.4),5.2.3 Certification (Section 20), and5.2.4 Mill test report (Section 21).6. Materials and Manufacture6.1 Material:6.1.1 Seamless TubeThe material of manufacture shall becast billets of the Copper Alloys UNS Nos. C70600, C70620,C71500, C71520, C71640, and C72200 and
17、 shall be of suchquality and soundness as to be suitable for processing intofinished lengths or coils of tube to meet the propertiesprescribed herein.6.1.2 Welded TubeThe material of manufacture shall bestrip of one of the Copper Alloy UNS Nos. C70600, C70620,C71500, C71520, C71640, and C72200 and s
18、hall be of suchpurity and soundness as to be suitable for processing into theproducts prescribed herein.6.2 Manufacture:6.2.1 Seamless TubeThe product shall be manufacturedby such hot extrusion or piercing, and subsequent cold workingand annealing as to produce a uniform, seamless wroughtstructure i
19、n the finished product.6.2.2 Welded TubeThe product shall be manufacturedfrom flat rolled strip which is subsequently formed and welded.This is usually accomplished by a forge-weld process or afusion-weld process.6.2.2.1 For forged-welded tube, the edges of the strip shallbe heated to a required wel
20、ding temperature, usually byhigh-frequency electric current, and be pressed firmly togethercausing a forged-type joint to be formed with internal andexternal flash or bead.6.2.2.2 The external flash (that portion of the weld whichextends beyond the normal wall) shall always be removed.6.2.2.3 The in
21、ternal flash in forge-welded tube shall beremoved to the extent that it shall not exceed 0.006 in. in heightor 10 % of the nominal wall thickness, whichever is greater.6.2.2.4 Fusion-welded tube shall be mechanically worked toproduce a smooth external and internal surface without theapplication of s
22、carfing or other removal of the weld bead.6.2.3 The product shall be cold worked and annealed asnecessary to meet properties of the temper specified.7. Chemical Composition7.1 The product shall conform to the chemical compositionrequirements specified in Table 1 for the Copper Alloy UNSnumber design
23、ation specified in the ordering information.7.2 These composition limits do not preclude the presenceof other elements. When required, limits for unnamed elementsshall be established and analysis required by agreement be-tween the manufacture or supplier and purchaser.7.2.1 For copper alloys in whic
24、h copper is specified as theremainder, copper may be taken as the difference between thesum of all the elements analyzed and 100 %.7.2.1.1 When all the elements in Table 1 are analyzed, theirsum shall be as shown in the following table:Copper Alloy UNS No. Copper Plus Named Elements, % minC70600 99.
25、5C70620 99.5C71500 99.5C71520 99.5C71640 99.5C72200 99.88. Temper8.1 Tempers within this specification are as defined inClassification B 601.8.1.1 Seamless TubeTubes of Copper Alloy UNS Nos.C71500, C71520, and C71640 shall be supplied in either theannealed (061) or drawn and stress-relieved (HR50) t
26、empers.8.1.1.1 Tubes of Copper Alloy UNS Nos. C70600, C70620,and C72200 may be supplied in either the light-drawn (H55) orannealed (061) temper.8.1.2 Welded TubeTubes of Copper Alloy UNS Nos.C70600, C70620, C71500, C71520, C71640, and C72200 arenormally supplied in either the WO61 (welded and anneal
27、ed)TABLE 1 Chemical RequirementsComposition, %Copper or Copper Alloyby UNS No.Copper(incl silver)Nickel(incl cobalt)Lead,maxIron Zinc,maxManganese Phosphorus Other named elementsC70600 Remainder 9.0 11.0 0.05 1.0 1.8 1.0 1.0C70620 86.5 min 9.0 11.0 .02 1.0 1.8 .50 1.0 C .05 maxP .02 maxS .02 maxC715
28、00 Remainder 29.0 33.0 0.05 .40 1.0 1.0 1.0C71520 65.0 min 29.0 33.0 .02 .40 1.0 .50 1.0 C .05 maxP .02 maxS .02 maxC71640 RemainderA29.0 32.0 0.05A1.7 2.3 1.0A1.52.5AC .06 maxAS .03 maxAC72200 RemainderA15.0 18.0 0.05A.50 1.0 1.0A1.0ACr 0.30 0.7Si .03 maxTi .03 maxAAWhen the product is for subseque
29、nt welding applications and so specified by the purchaser, zinc shall be 0.50 % max, lead 0.02 % max, phosphorus 0.02 % max, sulfur0.02 % max, and carbon 0.05 % max.B552082or the WC55 (welded and light cold worked) temper asspecified in the purchase order, without stress relief treatment.8.2 Tubes s
30、hall conform to the tensile requirements shownin Table 2.9. Mechanical Property Requirements9.1 Tensile Strength:9.1.1 The product shall conform to the tensile strengthrequirements prescribed in Table 2 for the temper, alloy andtype specified in the ordering information when tested inaccordance with
31、 Test Methods E8.10. Performance Requirements10.1 Expansion Test Requirements:10.1.1 Tube specimens selected for test shall withstand theexpansion shown in Table 3 at one end when tested inaccordance with Test Method B 153. The expanded tube shallbe free of defects, but blemishes of a nature that do
32、 notinterfere with the intended application are acceptable.10.2 Flattening Test (Welded and Seamless Tube):10.2.1 When specified in the contract or purchase order, theflattening test described in the Test Method section 16.3 shallbe performed.10.2.2 During inspection, the flattened areas and edges o
33、fthe test specimen shall be free of defects, but blemishes of anature that do not interfere with the intended application areacceptable.10.3 Reverse-Bend Test Requirements (welded tube only).10.3.1 When specified in the contract or purchase order, thereverse bend test described in the Test Method se
34、ction in 16.4shall be performed.10.3.2 The sample shall be free of defects, but blemishes ofa nature that do not interfere with the intended application areacceptable.10.4 Microscopical Examinations.10.4.1 When either the 061 or WO61 annealed temper isspecified, tubes shall be subjected to a microsc
35、opical exami-nation at a magnification of 75 diameters. Samples selected fortest shall show uniform and complete recrystallization, andshall have an average grain size within the limits of 0.010 and0.045 mm.10.4.2 Samples of welded and annealed tube and of fullyfinished annealed tube shall be subjec
36、ted to microscopicalexamination at a magnification of 75 diameters.10.4.2.1 Forged-welded and annealed tube shall have acompletely recrystallized grain structure, and the weld zoneshall have a structure typical of hot-forged welds.10.4.2.2 Fusion-welded and annealed tube shall have acompletely recry
37、stallized grain structure and the weld zoneshall have a structure typical of a fusion weld.10.4.2.3 Fully finished and annealed tube shall have acompletely recrystallized structure of the metal when cold-worked and annealed, including the weld zone.10.4.2.4 Samples selected for test shall be examine
38、d micro-scopically at a magnification of 75 diameters to establish thatthe weld interface is metallurgically sound.11. Nondestructive Test Requirements11.1 Electromagnetic (Eddy-Current) Test (Seamless Tube):11.1.1 Each tube shall be subjected to an eddy-current test.Testing shall follow the procedu
39、res of Practice E 243. Thepurchaser may specify either of the tests in 11.3 or 11.4 as analternative to the eddy-current test.11.1.2 The provisions for the determination of “end-effect”in Practice E 243 shall not apply.11.1.3 Either notch depth or drilled hole standards shall beused. The depth of th
40、e round-bottom transverse notches and theTABLE 2 Tensile RequirementsCopper AlloyUNS No.TemperTensile Strength,min, ksi (MPa)Standard FormerC70600 O61 annealed 40 (275)W061 welded and annealed 40 (275)H55 light drawn, light cold worked 45 (310)WC55 welded and light cold worked 45 (310)C70620 061 ann
41、ealed 40 (275)WO61 welded and annealed 40 (275)H55 light drawn, light cold worked 45 (310)WC55 welded and light cold worked 45 (310)C71500 O61 annealed 52 (360)WO61 welded and annealed 52 (360)H55 light drawn, light cold worked 54 (370)WC55 welded and light cold worked 54 (370)C71520 060 annealed 52
42、 (360)WO61 welded and annealed 52 (360)H55 light drawn, light cold worked 54 (370)WC55 welded and light cold worked 54 (370)C71640 O61 annealed 63 (435)WO61 welded and annealed 63 (435)H55 light drawn, light cold worked 75 (515)WC55 welded and light cold worked 75 (515)C72200 O61 annealed 45 (310)WO
43、61 welded and annealed 45 (310)H55 light drawn, light cold worked 50 (345)WC55 welded and light cold worked 50 (345)TABLE 3 Expansion Test RequirementsCopper AlloyUNS No.Temper Expansion ofTube OutsideDiameter, % ofOriginal OutsideDiameterStandard FormerC70600 O61 annealed 30W061 welded and annealed
44、 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15C70620 061 annealed 30WO61 welded and annealed 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15C71500 O61 annealed 30WO61 welded and annealed 30H55 light drawn, light cold worked 15WC55 welded and
45、light cold worked 15C71520 061 annealed 30WO61 welded and annealed 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15C71640 O61 annealed 30WO61 welded and annealed 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15C72200 O61 annealed 30WO61 welded an
46、d annealed 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15B552083diameters of the drilled holes in the calibrating tube used toadjust the sensitivity of the test are shown in Table 6 andTable 7, respectively.11.1.4 Tubes that do not actuate the signaling device of thetest
47、ing unit shall be considered as conforming to the require-ments of the test. Tubes causing irrelevant signals because ofmoisture, soil, and like effects may be reconditioned andretested. Such tubes, when retested to the original test param-eters, shall be considered to conform if they do not causeou
48、tput signals beyond the acceptable limits. Tubes causingirrelevant signals because of identifiable handling marks maybe retested by the hydrostatic test prescribed in 11.3, or thepneumatic test prescribed in 11.4. Tubes meeting requirementsof either test shall be considered to conform if the tubedim
49、ensions are within the prescribed limits, unless otherwiseagreed to by the manufacturer or supplier and the purchaserorder.11.2 Electromagnetic (Eddy-Current) Test (Welded Tube):11.2.1 Each tube shall be passed through an eddy-currenttesting unit adjusted to provide information on the suitability ofthe tube for the intended application. Testing shall follow theprocedures of Practice E 243, except as modified in 11.2.4.11.2.2 Tube supplied welded and annealed may be tested inthe welded condition before anneal or heat treatment, unlessotherwise agreed
