1、Designation: B552 08 B552 12Standard Specification forSeamless and Welded CopperNickel Tubes for WaterDesalting Plants1This standard is issued under the fixed designation B552; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the ye
2、ar 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. Scope*1.1 This specification establishes requirements for seamless and welded copper-nickel tubes from 0.250 to 2.125 in.
3、 (6.35 to54.0 mm) in diameter for use in heat exchangers in water desalting 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
4、Welding)C71640 copper-nickel-iron-manganeseC72200 copper-nickel1.2 UnitsThe values Values stated in inch-pound units are to be regarded as standard. The values given in parentheses aremathematical conversions to SI units that are provided for information only and are not considered standard.1.3 The
5、following safety hazard caveat pertains only to the test 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 a
6、nd health practices and determine the applicability of regulatory limitations priorto its use.2. Referenced Documents2.1 ASTM Standards:2B111/B111M Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule StockB153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy
7、 Pipe and TubingB154 Test Method for Mercurous Nitrate Test for Copper AlloysB543 Specification for Welded Copper and Copper-Alloy Heat Exchanger TubeB601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysB858 Test Method
8、for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper AlloysB968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and TubeE3 Guide for Preparation of Metallographic SpecimensE8E8/E8M Test Methods for Tension Testing of Metallic MaterialsE62 Test
9、 Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)3E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)3E118 Test Methods for Chemical Analysis of Copper-Chromium Alloys (Withdrawn 2010)3E243 Practice for Electromagnetic (Eddy
10、-Current) Examination of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper Alloys1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper All
11、oys and is the direct responsibility of Subcommittee B05.04 on Pipe andTube.Current edition approved April 1, 2008Oct. 1, 2012. Published April 2008November 2012. Originally approved in 1971. Last previous edition approved in 20042008 asB552 98 (2004).B552 08. DOI: 10.1520/B0552-08.10.1520/B0552-12.
12、2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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 standard is
13、 referenced on www.astm.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
14、that 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, Wes
15、t Conshohocken, PA 19428-2959. United States1E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE112 Test Methods for Determining Average Grain Size3. Terminology3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B84
16、6.4. Classification4.1 Tubes furnished to this specification are classified into two types, as follows:4.1.1 Seamless tube and4.1.2 Welded tube.5. Ordering Information5.1 Orders Include the following specified choices when placing orders for products under this specification shall include thefollowi
17、ng information:specification, as applicable:5.1.1 ASTM designation and year of issue,5.1.2 Copper Alloy UNS number designation,5.1.3 Whether seamless or welded (Section 4),5.1.4 Temper (Section 8),5.1.5 Dimensions: diameter and wall thickness (whether minimum or nominal), and length (Section 12),5.1
18、.6 Total number of pieces of each size, and5.1.7 How furnished, whether in straight lengths or coils. coils, and5.1.8 Intended application.5.2 The following options are available and, when required, are to and shall be specified at the time of placing of the order:inthe contract or purchase order wh
19、en required:5.2.1 Hydrostatic test (11.3),5.2.2 Pneumatic test (11.4),5.2.3 Certification (Section 20), and5.2.4 Mill test Test report (Section 21). ), and5.2.5 Package marking of the specification number (Section 22).6. Materials and Manufacture6.1 Material:6.1.1 Seamless TubeThe material of manufa
20、cture shall be cast billets of the Copper Alloys UNS Nos. C70600, C70620,C71500, C71520, C71640, and C72200 and shall be of such quality and soundness as to be suitable for processing into finishedlengths or coils of tube to meet the properties prescribed herein.6.1.2 Welded TubeThe material of manu
21、facture shall be strip of one of the Copper Alloy UNS Nos. C70600, C70620, C71500,C71520, C71640, and C72200 and shall be of such purity and soundness as to be suitable for processing into the productsprescribed herein.6.2 Manufacture:6.2.1 Seamless TubeThe product shall be manufactured by such hot
22、extrusion or piercing, and subsequent cold working andannealing as to produce a uniform, seamless wrought structure in the finished product.6.2.2 Welded TubeThe product shall be manufactured from flat rolled strip which is subsequently formed and welded. Thisis usually accomplished by a forge-weld p
23、rocess or a fusion-weld process.6.2.2.1 For forged-welded tube, the edges of the strip shall be heated to a required welding temperature, usually byhigh-frequency electric current, and be pressed firmly together causing a forged-type joint to be formed with internal and externalflash or bead.6.2.2.2
24、 The external flash (that portion of the weld which extends beyond the normal wall) shall always be removed.6.2.2.3 The internal flash in forge-welded tube shall be removed to the extent that it shall not exceed 0.006 in. in height or 10 %of the nominal wall thickness, whichever is greater.6.2.2.4 F
25、usion-welded tube shall be mechanically worked to produce a smooth external and internal surface without theapplication of scarfing or other removal of the weld bead.6.2.3 The product shall be cold worked and annealed as necessary to meet properties of the temper specified.7. Chemical Composition7.1
26、 The product shall conform to the chemical composition requirements specified in Table 1 for the Copper Alloy UNS numberdesignation specified in the ordering information.7.2 These composition limits do not preclude the presence of other elements. When required, limits for unnamed elements shallbe es
27、tablished and analysis required by agreement between the manufacture or supplier and purchaser.B552 1227.2.1 For copper alloys in which copper is specified as the remainder, copper may be taken as the difference between the sumof all the elements analyzed and 100 %.7.2.1.1 When all the elements in T
28、able 1 are analyzed, their sum shall be as shown in the following table:Copper Alloy UNS No. Copper Plus Named Elements, % minC70600 99.5C70620 99.5C71500 99.5C71520 99.5C71640 99.5C72200 99.88. Temper8.1 Tempers within this specification are as defined in Classification B601.8.1.1 Seamless Tube Tub
29、es of Copper Alloy UNS Nos. C71500, C71520, and C71640 shall be supplied in either the annealed(061) or drawn and stress-relieved (HR50) tempers.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 Tube
30、 Tubes of Copper Alloy UNS Nos. C70600, C70620, C71500, C71520, C71640, and C72200 are normallysupplied in either the WO61 (welded and annealed) or the WC55 (welded and light cold worked) temper as specified in thepurchase order, without stress relief treatment.8.2 Tubes shall conform to the tensile
31、 requirements shown in Table 2.9. Mechanical Property Requirements9.1 Tensile Strength:9.1.1 The product shall conform to the tensile strength requirements prescribed in Table 2 for the temper, alloy and typespecified in the ordering information when tested in accordance with Test Methods E8E8/E8M.1
32、0. Performance Requirements10.1 Expansion Test Requirements : Requirements:10.1.1 Tube specimens selected for test shall withstand the expansion shown in Table 3 at one end when tested in accordancewith Test Method B153. The expanded tube shall be free of defects, but blemishes of a nature that do n
33、ot interfere with the intendedapplication are acceptable.10.2 Flattening Test (Welded and Seamless Tube):10.2.1 When specified in the contract or purchase order, the flattening test described in the Test Method section 16.3 shall beperformed.10.2.2 During inspection, the flattened areas and edges of
34、 the test specimen shall be free of defects, but blemishes of a naturethat do not interfere with the intended application are acceptable.10.3 Reverse-Bend Test Requirements (welded tube only).only):10.3.1 When specified in the contract or purchase order, the reverse bend test described in the Test M
35、ethod section in 16.4 shallbe performed.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 .5
36、0 1.0 C .05 maxP .02 maxS .02 maxC71500 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 RemainderA 29.0 32.0 0.05A 1.7 2.3 1.0A 1.5 2.5 A C .06 maxAS .03 maxAC72200 RemainderA 15.0 18.0 0.05A .50 1.0 1.0A 1.0 A Cr 0.30 0.7Si .03
37、 maxTi .03 maxAA When the product is for subsequent 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.B552 12310.3.2 The sample shall be free of defects, but blemishes of a nature that do
38、not interfere with the intended application areacceptable.10.4 Microscopical Examinations.Microscopical Examinations:10.4.1 When either the 061 or WO61 annealed temper is specified, tubes shall be subjected to a microscopical examination ata magnification of 75 diameters. Samples selected for test s
39、hall show uniform and complete recrystallization, and shall have anaverage grain size within the limits of 0.010 and 0.045 mm.10.4.2 Samples of welded and annealed tube and of fully finished annealed tube shall be subjected to microscopical examinationat a magnification of 75 diameters.10.4.2.1 Forg
40、ed-welded and annealed tube shall have a completely recrystallized grain structure, and the weld zone shall havea structure typical of hot-forged welds.TABLE 2 Tensile RequirementsCopper AlloyUNS No.Temper Tensile Strength,min, ksi (MPa)Standard FormerC70600 O61 annealed 40 (275)W061 welded and anne
41、aled 40 (275)H55 light drawn, light cold worked 45 (310)WC55 welded and light cold worked 45 (310)C70620 061 annealed 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
42、(360)H55 light drawn, light cold worked 54 (370)WC55 welded and light cold worked 54 (370)C71520 060 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)C71640 O61 annealed 63 (435)WO61 welded and annealed 63 (435)H55
43、 light drawn, light cold worked 75 (515)WC55 welded and light cold worked 75 (515)C72200 O61 annealed 45 (310)WO61 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 o
44、fTube OutsideDiameter, % ofOriginal OutsideDiameterStandard FormerC70600 O61 annealed 30W061 welded and annealed 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
45、 worked 15C71500 O61 annealed 30WO61 welded and annealed 30H55 light drawn, light cold worked 15WC55 welded and 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
46、 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15C72200 O61 annealed 30WO61 welded and annealed 30H55 light drawn, light cold worked 15WC55 welded and light cold worked 15B552 12410.4.2.2 Fusion-welded and annealed tube shall have a completely recrystallized grain structur
47、e and the weld zone shall havea structure typical of a fusion weld.10.4.2.3 Fully finished and annealed tube shall have a completely recrystallized structure of the metal when cold-worked andannealed, including the weld zone.10.4.2.4 Samples selected for test shall be examined microscopically at a m
48、agnification of 75 diameters to establish that theweld 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 procedures of Practice E243. Th
49、e purchasermay specify either of the tests in 11.3 or 11.4 as an alternative to the eddy-current test.11.1.2 The provisions for the determination of “end-effect” in Practice E243 shall not apply.11.1.3 Either notch depth or drilled hole standards shall be used. The depth of the round-bottom transverse notches and thediameters of the drilled holes in the calibrating tube used to adjust the sensitivity of the test are shown in Table 6 and Table 7,respectively.11.1.4 Tubes that do not actuate the signaling device of the testing unit shall be
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