1、Designation: B 234 04Used in USNRC-RDT standardsStandard Specification forAluminum and Aluminum-Alloy Drawn Seamless Tubes forCondensers and Heat Exchangers1This standard is issued under the fixed designation B 234; the number immediately following the designation indicates the year oforiginal adopt
2、ion or, in the case of revision, the year of 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 specification2covers aluminum-alloy (Note 1)drawn seamless round t
3、ube in straight lengths designated asshown in Table 2, for use in surface condensers, evaporators,and heat exchangers.NOTE 1Throughout this specification use of the term alloy in thegeneral sense includes aluminum as well as aluminum alloy.NOTE 2For drawn seamless tubes used in general applications,
4、 seeSpecification B 210; for extruded tubes see Specification B 221; forseamless pipe see Specification B 241/B 241M; and for structural pipe andtube see Specification B 429.1.2 Alloy and temper designations are in accordance withANSI H35.1. The equivalent Unified Numbering System alloydesignations
5、are those of Table 1 preceded by A9, for example,A91060 for aluminum 1060, in accordance with PracticeE 527.1.3 A complete metric companion to Specification B 234has been developedB 234M; therefore, no metric equivalentsare presented in this specification.1.4 For acceptance criteria for inclusion of
6、 new aluminumand aluminum alloys in this specification, see Annex A2.1.5 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 to establish appro-priate safety and health practices and determine the
7、applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:3B 210 Specification for Aluminum and Aluminum-AlloyDrawn Se
8、amless TubesB 221 Specification for Aluminum and Aluminum-AlloyExtruded Bars, Rods, Wire, Profiles and TubesB 241/B 241M Specification forAluminum andAluminum-Alloy Seamless Pipe and Seamless Extruded TubeB 429 Specification for Aluminum-Alloy Extruded Struc-tural Pipe and TubeB 557 Test Methods of
9、Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB 660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB 666 Practice for Identification Marking of Aluminum andMagnesium ProductsB 881 Terminology Relating to Aluminum- andMagnesium-Alloy ProductsB 918 Practice fo
10、r Heat Treatment of Wrought AluminumAlloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for ChemicalAnalysis ofAluminum andAluminum-Base AlloysE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemi
11、cal CompositionE 215 Practice for Standardizing Equipment for Electro-magnetic Examination of Seamless Aluminum-Alloy TubeE 527 Practice for Numbering Metals and Alloys (UNS)E 607 Test Method for Optical Emission SpectrometricAnalysis of Aluminum and Aluminum Alloys by thePoint-to-Plane Technique, N
12、itrogen AtmosphereE 716 Practices for Sampling Aluminum and AluminumAlloys for Spectrochemical AnalysisE 1251 Test Method for Optical Emission SpectrometricAnalysis ofAluminum andAluminumAlloys by theArgonAtmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-pacitor Discharge2.3 ANSI Standards:4H3
13、5.1 Alloy and Temper Designation Systems for Alumi-numH35.2 Dimensional Tolerances forAluminum Mill Products1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.03 onAluminum Alloy Wrought Products.Current
14、edition approved Dec. 1, 2004. Published December 2004. Originallyapproved in 1948. Last previous edition approved in 2002 as B 234 02.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-234 in Section II of that Code.3For referenced ASTM standards, visit the ASTM we
15、bsite, 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.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.1*A
16、 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.2.4 Federal Standard:5Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.5 Military Standard:5MIL-STD-129 Marking fo
17、r Shipment and Storage2.6 AMS Specification:6AMS 2772 Heat Treatment of Aluminum Alloy Raw Mate-rials3. Terminology3.1 Refer to Terminology B 881 for definitions of productterms used in this specification.3.2 Definitions:3.3 Definitions of Terms Specific to This Standard:3.3.1 capable ofthe term cap
18、able of as used in thisspecification means that the test need not be performed by theproducer of the material. However, should testing by the5Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-5098.6Available from Society of Automotive Eng
19、ineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.TABLE 1 Chemical Composition LimitsA,B,CAlloy Silicon Iron Copper Manganese Magnesium Chromium Zinc TitaniumOther ElementsDAluminumEach TotalE1060 0.25 0.35 0.05 0.03 0.03 . 0.05 0.03 0.03F. 99.60 minG3003 0.6 0.7 0.050.20 1.01.5 . . 0.10
20、. 0.05 0.15 remainderAlclad 3003 3003 alloy clad with 7072 alloy505254540.250.250.400.400.100.100.100.501.02.22.82.43.00.150.350.050.200.100.25.0.200.050.050.150.15remainderremainder6061 0.400.8 0.7 0.150.40 0.15 0.81.2 0.040.35 0.25 0.15 0.05 0.15 remainder7072H0.7 Si + Fe 0.10 0.10 0.10 . 0.81.3 .
21、 0.05 0.15 remainderALimits are in percent maximum unless shown as a range or otherwise stated.BAnalysis shall be made for the elements for which limits are shown in this table.CFor purposes of determining conformance to these limits, an observed value or a calculated value attained from analysis sh
22、all be rounded to the nearest unit in thelast right-hand place of figures used in expressing the specified limit, in accordance with the rounding-off method of Practice E29.DOthers includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may a
23、nalyze samples for trace elements notspecified in this specification. However, such analysis is not required and may not cover all metallic Others elements. Should any analysis by the producer or the purchaserestablish that an Others element exceeds the limit of Each or that the aggregate of several
24、 Others elements exceeds the limit of Total, the material shall be considerednonconforming.EOther ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.FVanadium 0.05 max.GThe aluminum content shall be calculated by
25、subtracting from 100.00 % the sum of all the metallic elements present in amounts of 0.010 % or more, rounded to thesecond decimal before determining the sum.HComposition of cladding alloy as applied during the course of manufacture. The sample from finished tube shall not be required to conform to
26、these limits.TABLE 2 Tensile Property LimitsA,BAlloy Temper Wall Thickness, in.Tensile Strength,min, ksiYield Strength,(0.2 % offset),min, ksiElongation in 2 in., or4 3 Dia,Cmin, %Full-SectionSpecimenCut-Out Specimen1060 H14 0.0100.200 12.0 10.0 . .3003 H14 0.0100.0240.0250.0490.0500.20020.020.020.0
27、17.017.017.0358.34H25 0.0100.200 22.0 19.0 . .Alclad 3003 H14 0.0100.0240.0250.0490.0500.20019.019.019.016.016.016.0.58.34H25 0.0100.200 21.0 18.0 . .5052 H32H340.0100.2000.0100.20031.034.023.026.0.5454 H32H340.0100.0500.0510.2000.0100.0500.0510.20036.036.039.039.026.026.029.029.0.58466061 T4T60.025
28、0.0490.0500.2000.0250.0490.0500.20030.030.042.042.016.016.035.035.0161810121416810ATo determine conformance to this specification, each value for ultimate strength and for yield strength shall be rounded to the nearest 0.1 ksi and each value forelongation to the nearest 0.5 %, both in accordance wit
29、h the rounding-off method of Practice E29.BThe basis for establishment of mechanical property limits is shown in Annex A1.CElongation of full-section and cut-out sheet-type specimens is measured in 2 in., of cut-out round specimens, in 4 3 specimen diameter.B234042purchaser establish that the materi
30、al does not meet theserequirements, the material shall be subject to rejection.4. Ordering Information4.1 Orders for material to this specification shall include thefollowing information:4.1.1 This specification designation (which includes thenumber, the year, and the revision letter, if applicable)
31、,4.1.2 Quantity in pieces or pounds,4.1.3 Alloy (Section 7),4.1.4 Temper (Section 8),4.1.5 Outside or inside diameter, wall thickness, and length,4.1.6 For alloy Alclad 3003, state clad inside or outside(12.1).4.2 Additionally, orders for material to this specificationshall include the following inf
32、ormation when required by thepurchaser:4.2.1 Whether heat treatment in accordance with PracticeB 918 is required (9.2),4.2.2 Whether cut ends of tube are to be deburred (Section14),4.2.3 Whether inspection or witness of inspection and testsby the purchasers representative is required prior to materi
33、alshipment (Section 15),4.2.4 Whether certification of the material is required (Sec-tion 17),4.2.5 Whether marking for identification is required (Sec-tion 18), and4.2.6 Whether Practices B 660 applies and, if so, the level ofpreservation, packaging, and packing required (19.3).5. Manufacture5.1 Th
34、e tube shall be produced by drawing an extruded tubemade from hollow extrusion ingot (cast in hollow form orpierced) and extruded by use of the die and mandrel method.6. Responsibility for Quality Assurance6.1 Responsibility for Inspection and TestsUnless other-wise specified in the contract or purc
35、hase order, the producer isresponsible for the performance of all inspection and testrequirements specified herein. The producer may use his ownor any other suitable facilities for the performance of theinspection and test requirements specified herein, unless dis-approved by the purchaser in the or
36、der or at the time of contractsigning. The purchaser shall have the right to perform any ofthe inspections and tests set forth in this specification wheresuch inspections are deemed necessary to assure that materialconforms to prescribed requirements.6.2 Lot DefinitionAn inspection lot shall be defi
37、ned asfollows:6.2.1 For heat-treated tempers, an inspection lot shall con-sist of an identifiable quantity of material of the same millform, alloy, temper, and thickness traceable to a heat-treat lotor lots, and subjected to inspection at one time.6.2.2 For nonheat-treated tempers, an inspection lot
38、 shallconsist of an identifiable quantity of material of the same millform, alloy, temper, and thickness subjected to inspection atone time.7. Chemical Composition7.1 LimitsThe tube shall conform to the chemical com-position limits in Table 1. Conformance shall be determined bythe producer by analyz
39、ing samples taken at the time the ingotsare poured, or samples taken from the finished or semi-finishedproduct. If the producer has determined the chemical compo-sition of the material during the course of manufacture, he shallnot be required to sample and analyze the finished product.NOTE 3It is st
40、andard practice in the United States aluminum industryto determine conformance to the chemical composition limits prior tofurther processing of ingots into wrought products. Due to the continuousnature of the process, it is not practical to keep a specific ingot analysisidentified with a specific qu
41、antity of finished material.7.2 Number of SamplesThe number of samples taken fordetermination of chemical composition shall be as follows:7.2.1 When samples are taken at the time the ingots arepoured, at least one sample shall be taken for each group ofingots poured simultaneously from the same sour
42、ce of moltenmetal.7.2.2 When samples are taken from the finished or semi-finished product, a sample shall be taken to represent each4000 lb, or fraction thereof, of material in the lot, except thatnot more than one sample shall be required per piece.7.3 Methods of SamplingSamples for determination o
43、fchemical composition shall be taken in accordance with one ofthe following methods:7.3.1 Samples of chemical analysis shall be taken by drill-ing, sawing, milling, turning, clipping, and so forth, a repre-sentative piece or pieces to obtain a prepared sample of not lessthan 75 g. Sampling shall be
44、in accordance with Practice E55.7.3.2 Sampling for spectrochemical analysis shall be inaccordance with Practices E 716. Samples for other methods ofanalysis shall be suitable for the form of material beinganalyzed and the type of analytical method used.NOTE 4It is difficult to obtain a reliable anal
45、ysis of each of thecomponents of clad materials using material in its finished state. Areasonably accurate determination of the core composition can be made ifthe cladding is substantially removed prior to analysis. The claddingcomposition is more difficult to determine because of the relatively thi
46、nlayer and because of diffusion of core elements to the cladding. Thecorrectness of cladding alloy used can usually be verified by a combina-tion of metallographic examination and spectrochemical analysis of thesurface at several widely separated points.7.4 Methods of AnalysisThe determination of ch
47、emicalcomposition shall be made in accordance with suitable chemi-cal (Test Methods E34), or spectrochemical, (Test MethodsE 607 and E 1251) methods. Other methods may be used onlywhen no published ASTM method is available. In case ofdispute, the methods of analysis shall be agreed upon betweenthe p
48、roducer and purchaser.8. Tensile Properties of Material as Supplied8.1 LimitsThe tube shall conform to the tensile propertyrequirements in Table 2.8.2 Number of Specimens:8.2.1 For material having a nominal weight of less than 1lb/linear ft, one tension test specimen shall be taken for each1000 lb,
49、or fraction thereof, in the lot.B2340438.2.2 For material having a nominal weight of 1 lb ormore/linear ft one tension test specimen shall be taken for each1000 ft, or fraction thereof, in the lot.8.2.3 Other procedures for selecting samples may be em-ployed if agreed upon by the producer and the purchaser.8.3 Test MethodsThe tension tests shall be made inaccordance with Test Methods B 557.9. Heat Treatment9.1 Unless otherwise specified in 9.2, producer or supplierheat treatment for the applicable tempers in Table 2 shall be inacco
