1、Designation: B234M 17Standard Specification forAluminum and Aluminum-Alloy Drawn Seamless Tubes forSurface Condensers, Evaporators, and Heat Exchangers(Metric)1This standard is issued under the fixed designation B234M; the number immediately following the designation indicates the year oforiginal ad
2、option or, 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. Scope*1.1 This specification covers aluminum-alloy (Note 1)drawn seamless round
3、 tube in straight lengths designated asshown in the 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 applica
4、tions, seeSpecifications B210 and B210M; for extruded tubes see SpecificationsB221 and B221M; for seamless pipe and seamless extruded tube used inpressure applications, see Specification B241/B241M; and for structuralpipe and tube see Specification B429/B429M.1.2 Alloy and temper designations are in
5、 accordance withANSI H35.1M. The equivalent Unified Numbering Systemalloy designations are those of Table 1 preceded by E215, forexample, A91060 for aluminum 1060, in accordance withPractice E527.1.3 For acceptance criteria for inclusion of new aluminumand aluminum alloys in this specification, see
6、Annex A1.1.4 This specification is the SI companion to SpecificationB234.1.5 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, health, and environmental practice
7、s and deter-mine the applicability of regulatory limitations prior to use.1.6 This 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 Re
8、com-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.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:2,3B210 Specifica
9、tion for Aluminum and Aluminum-AlloyDrawn Seamless TubesB210M Specification for Aluminum and Aluminum-AlloyDrawn Seamless Tubes (Metric)B221 Specification for Aluminum and Aluminum-Alloy Ex-truded Bars, Rods, Wire, Profiles, and TubesB221M Specification for Aluminum and Aluminum-AlloyExtruded Bars,
10、Rods, Wire, Profiles, and Tubes (Metric)B241/B241M Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded TubeB429/B429M Specification for Aluminum-Alloy ExtrudedStructural Pipe and TubeB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Pr
11、oducts (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB666/B666M Practice for Identification Marking of Alumi-num and Magnesium ProductsB881 Terminology Relating to Aluminum- and Magnesium-Alloy ProductsB918 Practice for Heat Treatment of Wrought AluminumAlloysB985 Pra
12、ctice for Sampling Aluminum Ingots, Billets, Cast-ings and Finished or Semi-Finished Wrought AluminumProducts for Compositional AnalysisE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE215 Practice for Standardizing Equipment and Electromag-netic Exa
13、mination of Seamless Aluminum-Alloy Tube1This 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 edition approved Oct. 1, 2017. Published October 2017. Originallyapp
14、roved in 1982. Last previous edition approved in 2010 as B234M 10. DOI:10.1520/B0234M-17.2For ASME Boiler and Pressure Vessel Code applications see related SB-234 inSection ll of that code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at servic
15、eastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A 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
16、StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to
17、 Trade (TBT) Committee.1Mon Apr 30 14 TABLE 1 Chemical Composition LimitsA,B,C,IAlloy Silicon Iron Copper Manganese Magnesium Chromium Zinc TitaniumOther ElementsDAluminum,minEach TotalE1060 0.25 0.35 0.05 0.03 0.03 . . . 0.05 0.03F,G0.03 . . . 99.603003 0.6 0.7 0.050.20 1.01.5 . . . . . . 0.10 . .
18、. 0.05 0.15 remainderAlclad30033003 alloy clad with 7072 alloy5052 0.25 0.40 0.10 0.10 2.22.8 0.150.35 0.10 . . . 0.05 0.15 remainder5454 0.25 0.40 0.10 0.501.0 2.43.0 0.050.20 0.25 0.20 0.05 0.15 remainder6061 0.400.8 0.7 0.150.40 0.15 0.81.2 0.040.35 0.25 0.15 0.05 0.15 remainder7072 0.07 Si + Fe
19、0.10 0.10 0.10 . . . 0.81.3 . . .H0.05 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 calculate
20、d value attained from analysis shall be rounded to the nearest unit in the lastright-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 meta
21、llic elements. The producer may analyze 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
22、 or that the aggregate of several 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 aluminu
23、m content shall be calculated by 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 sha
24、ll not be required to conform to these limits.IIn case there is a discrepancy in the values listed in Table 1 with those listed in the “International Alloy Designations and Chemical Composition Limits for WroughtAluminum and Wrought Aluminum Alloys” (known as the “Teal Sheets”), the composition limi
25、ts registered with the Aluminum Association and published in the “Teal Sheets”shall be considered the controlling composition. The “Teal Sheets” are available at http:/www.aluminum.org/tealsheets.TABLE 2 Tensile Property LimitsA,BAlloy TemperWall Thickness, mmTensile Strength,min, MPaYield Strength,
26、(0.2 % offset),min, MPaElongation in 50 mm min, %Over ThroughFull-SectionSpecimenCut-outSpecimen1060 H14 0.25 5.00 85 70 . . . . . .3003 H14 0.25 0.63 140 115 3 . . .0.63 1.20 140 115 5 31.20 5.00 140 115 8 4H25 0.25 5.00 150 130 . . . . . .Alclad 3003 H14 0.25 0.63 135 110 . . . . . .0.63 1.20 135
27、110 5 31.20 5.00 135 110 8 4H25 0.25 5.00 145 125 . . . . . .5052 H32 0.25 5.00 215 160 . . . . . .H34 0.25 5.00 235 180 . . . . . .5454 H32 0.25 1.20 250 180 . . . 51.20 5.00 250 . . . 8H34 0.25 1.20 270 200 . . . 41.20 5.00 270 200 . . . 66061 T4 0.25 1.20 205 110 16 141.20 5.00 205 110 18 16T6 0.
28、25 1.20 290 240 10 81.20 5.00 290 240 12 10ATo determine conformance to this specification, each value for tensile strength and for yield strength shall be rounded to the nearest 1 MPa and each value for elongationto the nearest 0.5 %, both in accordance with the rounding-off method of Practice E29.
29、BThe basis for establishment of mechanical property limits is shown in Annex A1.B234M 172Mon Apr 30 14 E527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitroge
30、n Atmosphere (Withdrawn 2011)4E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spark Atomic Emission Spec-trometryE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission SpectrometryE3061 Te
31、st Method for Analysis of Aluminum and Alumi-numAlloys by Inductively Coupled PlasmaAtomic Emis-sion Spectrometry (Performance Based Method)2.3 ANSI Standards:5H35.1/H35.1(M) Alloy and Temper Designation Systems forAluminumH35.2(M) Dimensional Tolerances for Aluminum MillProducts2.4 Federal Standard
32、:6Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.5 Military Standard:6MIL-STD-129 Marking for Shipment and Storage2.6 AMS Specification:7AMS 2772 Heat Treatment of Aluminum Alloy Raw Mate-rials2.7 EN Standard:8CEN EN 14242 Aluminum andAluminumAlloys, ChemicalAnalysis, Inductively Coupled P
33、lasma Optical EmissionSpectral Analysis3. Terminology3.1 Definitions: Refer to Terminology B881 for definitionsof product terms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 capable ofthe term capable of as used in thisspecification means that the test need not
34、be performed by theproducer of the material. However, should testing by thepurchaser establish that the material 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
35、.1 The specification designation (which includes thenumber, the year, and the revision letter, if applicable),4.1.2 Quantity in pieces or kilograms,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 in
36、side or outside(12.1).4.2 Additionally, orders for material to this specificationshall include the following information when required by thepurchaser:4.2.1 Whether heat treatment in accordance with PracticeB918 is required (9.2),4.2.2 Whether cut ends of tube are to be deburred (Section14),4.2.3 Wh
37、ether inspection or witness of inspection and testsby the purchasers representative is required prior to materialshipment (Section 15),4.2.4 Whether certification of the material is required(Section 17),4.2.5 Whether marking for identification is required (Sec-tion 18), and4.2.6 Whether Practices B6
38、60 applies and, if so, the level ofpreservation, packaging, and packing required (19.3).5. Manufacture5.1 The 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 Qua
39、lity Assurance6.1 Responsibility for Inspection and TestsUnless other-wise specified in the contract or purchase 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 perform
40、ance of theinspection and test requirements specified herein, unless dis-approved by the purchaser in the order 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
41、to assure that materialconforms to prescribed requirements.6.2 Lot DefinitionAn inspection lot shall be defined 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-tr
42、eated lotor lots, and subjected to inspection at one time.6.2.2 For nonheat-treated tempers, an inspection lot 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 co
43、nform to the chemical compo-sition limits in Table 1. Conformance shall be determined bythe producer by taking samples in accordance with PracticesE716 when the ingots are poured and analyzing those samplesin accordance with Test Methods E607, E1251, E3061,orEN 14242.At least one sample shall be tak
44、en for each group ofingots poured simultaneously from the same source of molten4The last approved version of this historical standard is referenced onwww.astm.org.5Available from Aluminum Association, Inc., 1400 Crystal Dr., Suite 430,Arlington, VA 22202, http:/www.aluminum.org.6Available from Stand
45、ardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.7Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001. http:/www.sae.org.8Available from European Committee for Standar
46、dization Central Secretariat(CEN), rue de Stassart 36, B1050 Brussels, Belgium, http: /www.cen.eu/esearch.B234M 173Mon Apr 30 14 metal. If the producer has determined the chemical composi-tion of the material during the course of manufacture, he shallnot be required to sample and analyze the finishe
47、d product.NOTE 3It is standard 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 analysisident
48、ified with a specific quantity of finished material.7.2 If it becomes necessary to analyze the finished orsemifinished product for conformance to chemical compositionlimits, the methods of sampling and methods of analysis shallbe as provided in the following:7.2.1 Methods of SamplingSamples for chem
49、ical analysisshall be taken in accordance with Practice B985.7.2.2 Methods of AnalysisAnalysis shall be performed inaccordance with Test Methods E607, E1251, E3061,orEN 14242.7.3 Other methods of analysis or in the case of dispute maybe by agreement between the producer and the purchaser.NOTE 4It is difficult to obtain a reliable analysis 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 a
