1、Designation: B241/B241M 16 Used in USNRC-RDT standardsStandard Specification forAluminum and Aluminum-Alloy Seamless Pipe andSeamless Extruded Tube1This standard is issued under the fixed designation B241/B241M; the number immediately following the designation indicates the yearof original adoption
2、or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1.
3、Scope*1.1 This specification2covers aluminum and aluminumal-loy seamless pipe in the alloys (Note 1) and tempers shown inTable 1 Table 2 and seamless extruded round tube in thealloys and tempers shown in Table 3 Table 4 intended forpressure applications. The standard sizes for seamless pipe areliste
4、d in Table 16.7 of ANSI H35.2 and H35.2(M). Nonstan-dard alloys, tempers, and sizes of pipe are produced asseamless extruded tube. Also included in this standard areseamless extruded pipe and seamless extruded tube for Oil for extruded tubes, Specifications B221 and B221M; for drawnseamless tubes fo
5、r condensers and heat exchangers, Specifications B234and B234M; for seamless condenser and heat exchanger tubes withintegral fins, Specification B429/B429M; and for drawn tube for generalpurpose applications, Specifications B483/B483M.1.2 Alloy and temper designations are in accordance withANSI H35.
6、1/H35.1(M). The equivalent Unified NumberingSystem alloy designations are those of Table 5 preceded byA9,for example, A91100 for aluminum 1100 in accordance withPractice E527.1.3 For acceptance criteria for inclusion of new aluminumand aluminum alloys in this specification, see Annex A2.1.4 The valu
7、es stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard
8、.1.4.1 The SI units are shown either in brackets or in separatetables.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:3B210 Specification for Aluminum and Aluminu
9、m-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, Rods, Wire, Profiles, and Tub
10、es (Metric)B234 Specification for Aluminum and Aluminum-AlloyDrawn Seamless Tubes for Condensers and Heat Ex-changersB234M Specification for Aluminum and Aluminum-AlloyDrawn Seamless Tubes for Condensers and Heat Ex-changers (Metric)B429/B429M Specification for Aluminum-Alloy ExtrudedStructural Pipe
11、 and TubeB483/B483M Specification for Aluminum and Aluminum-Alloy Drawn Tube and Drawn Pipe for General PurposeApplicationsB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy
12、Products (Metric)B594 Practice for Ultrasonic Inspection of Aluminum-AlloyWrought ProductsB647 Test Method for Indentation Hardness of AluminumAlloys by Means of a Webster Hardness GageB648 Test Method for Indentation Hardness of Aluminum1This specification is under the jurisdiction of ASTM Committe
13、e B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.03 onAluminum Alloy Wrought Products.Current edition approved Feb. 1, 2016. Published February 2016. Originallyapproved in 1949. Last previous edition approved in 2012 as B241/B241M 121.DOI: 10.1520/B0241_B0241M-16.
14、2For ASME Boiler and Pressure Vessel Code applications see related specifica-tions 241/SB241-241M/SB241M in Section II of that code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume inform
15、ation, 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 States1Alloys by Means of a Barcol ImpressorB660 Practice
16、s for Packaging/Packing of Aluminum andMagnesium ProductsB666/B666M Practice for Identification Marking of Alumi-num and Magnesium ProductsB807/B807M Practice for Extrusion Press Solution HeatTreatment for Aluminum AlloysB881 Terminology Relating to Aluminum- and Magnesium-Alloy ProductsB918 Practic
17、e for Heat Treatment of Wrought AluminumAlloysB945 Practice for Aluminum Alloy Extrusions Press Cooledfrom an Elevated Temperature Shaping Process for Pro-duction of T1, T2, T5 and T10Type TempersB985 Practice for Sampling Aluminum Ingots, Billets, Cast-ings and Finished or Semi-Finished Wrought Alu
18、minumProducts for Compositional AnalysisE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE527 Practice for Numbering
19、 Metals and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere (Withdrawn 2011)4E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination
20、ofChemical Composition by Spectrochemical AnalysisE1004 Test Method for Determining Electrical ConductivityUsing the Electromagnetic (Eddy-Current) MethodE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission SpectrometryG47 Test Method for Determining Susceptibilit
21、y to Stress-Corrosion Cracking of 2XXX and 7XXX AluminumAlloy Products2.3 ANSI Standards:B2.1 Pipe Threads (except Dryseal)5B36.10 Wrought Steel and Wrought Iron Pipe5H35.1/H35.1(M) Alloy and Temper Designation Systemsfor Aluminum6H35.2 Dimensional Tolerances for Aluminum Mill Prod-ucts6H35.2(M) Dim
22、ensional Tolerances forAluminum Mill Prod-ucts Metric62.4 American Welding Society StandardD10.7 Recommended Practices for Gas Shielded Arc Weld-ing of Aluminumnd Aluminum-Alloy Pipe72.5 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)82.6 Military Standard:MIL-STD-129 Markin
23、g for Shipment and Storage82.7 AMS Specification:AMS 2772 Heat Treatment of Aluminum Alloy Raw Mate-rials92.8 CEN EN StandardsCEN EN 14242 Aluminum and Aluminum AlloysChemical AnalysisInductively Coupled Plasma OpticalEmission Spectral Analysis103. Terminology3.1 Definitions of Terms Specific to Thi
24、s Standard:3.1.1 alclad seamless pipe or alclad seamless round tube,na composite pipe or tube product composed of a seamlessaluminum alloy core having on either the inside or the outsidesurface a metallurgically bonded aluminum or aluminum-alloycoating that is anodic to the core, thus electrolytical
25、ly protect-ing the core against corrosion.3.1.2 capable of, adjthe test need not be performed by theproducer of the material. However, should subsequent testingby the purchaser establish that the material does not meet theserequirements, the material shall be subject to rejection.3.1.3 extruded seam
26、less alclad tube, na composite roundtube product composed of an aluminum alloy core having oneither the inside or outside surface a metallurgically bondedaluminum or aluminum alloy coating that is anodic to the core,thus electrolytically protecting the core against corrosion.3.1.4 extruded seamless
27、pipe, nextruded seamless roundtube with standardized sizes of outside diameter and wallthickness commonly designated by “Nominal Pipe Sizes” andAmerican National Standards Institute (ANSI) “ScheduleNumbers.”3.1.5 extruded seamless round tube, na hollow producthaving a round cross section and a unifo
28、rm wall thickness,brought to final dimensions by extruding from a hollow castingot or mandrel pierced ingot.3.1.6 producer, nthe primary manufacturer of the mate-rial.3.1.7 seamless pipe, nextruded or drawn seamless tubehaving certain standardized sizes of outside diameter and wallthickness commonly
29、 designated by “Nominal Pipe Sizes” andAmerican National Standards Institute (ANSI) “ScheduleNumbers.”3.1.8 supplier, njobber or distributor as distinct fromproducer.3.2 Other DefinitionsFor all other definitions of productterms, refer to Terminology B881.4The last approved version of this historica
30、l standard is referenced onwww.astm.org.5Available from American National Standards Institute, 11 West 42nd Street,13th Floor, New York, NY 10036.6Available from Aluminum Association, Inc., 1400 Crystal Dr., Suite 430,Arlington, VA 22202 http:/www.aluminum.org.7Available from the American Welding So
31、ciety, 8669 NW 36th St, Miami, FL33166.8Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.9Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale,PA 15096-0001, http:/www.sae.org.
32、10Available from European Committee for Standardization (CEN), 36 Rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B241/B241M 1624. Ordering Information4.1 Orders for material to this specification shall include thefollowing information:4.1.1 This specification designation (which inclu
33、des thenumber, the year, and the revision letter, if applicable),NOTE 3For inch-pound orders specify Specification B241; for metricorders specify Specification B241M. Do not mix units.4.1.2 Quantity in pieces or pounds kilograms,4.1.3 Alloy (Section 7),4.1.4 Temper (Section 9),4.1.5 Pipe size and sc
34、hedule number (Table 12.55 of ANSIH35.2 and H35.2(M), or outside diameter and wall thickness(tube). Dimensional tolerances for 14, 16, 18, and 20-in. pipesizes (see Table 4(a) shall be agreed upon between theproducer and purchaser and shall be specified contract orpurchase order.4.1.6 For alloy Alcl
35、ad 3003, state clad inside or outside(Section 13).4.1.7 End configuration (Sections 15.4 and 15.5).4.1.8 Length (Section 14).4.2 Additionally, orders for material to this specificationshall include the following information when required by thepurchaser:4.2.1 Whether solution treatment at the press
36、is unaccept-able (8.3),4.2.2 Whether heat treatment in accordance with PracticeB918 is required (8.4),4.2.3 Whether pipe size under 1 in. (25 mm) shall beextruded only (5.1 and Table 1 Table 2, Footnote F),4.2.4 Whether threaded ends are required (see 15.2),4.2.5 Whether inspection or witness of ins
37、pection and testsby the purchasers representative is required prior to materialshipment (Section 16),4.2.6 Whether Practices B660 applies and, if so, the levelsof preservation, packaging, and packing required (20.3),4.2.7 Whether certification of the material is required (Sec-tion 21),4.2.8 Requirem
38、ents for tensile property and dimensionaltolerance for sizes not specifically covered (9.1.2 and 14.2),4.2.9 Whether ultrasonic inspection is required (Section 16,Table 6 Table 7),4.2.10 Whether Sections 10 and 11 apply to 6063 and 6061alloys, and4.2.11 Whether the term “Seamless” is required in pro
39、ductmarking in accordance with Practice B666/B666M.5. Materials and Manufacture5.1 The pipe and tube shall be produced from hollowextrusion ingot (cast in hollow form, or drilled, or pierced fromsolid ingot) and shall be extruded by use of the die and mandrelmethod.5.1.1 At the option of the produce
40、r, the pipe and tube maybe drawn after extrusion, provided all the requirements of thisspecification aremet.6. Quality 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 a
41、nd testTABLE 1 Tensile Property Limits for Pipe, Inch-Pound UnitsA,BAlloy TemperPipe Size,in.Tensile Strength,min, ksiYield Strength(0.2 % Offset),min, ksiElongation in2 in. or 4 Diameter, min, %C3003 H18 Under 1 27.0 24.0 4H112 1 and over 14.0 5.0 256005 T1 All 25.0 15.0 16T5 All 38.0 35.0 86005A T
42、1 All 25.0 14.5 15T5 All 38.0 31.0 7T61 Under 0.250 38.0 35.0 80.2501.000 38.0 35.0 106041 T6 All 45.0 40.0 106042 T5, T5511 All 38.0 35.0 106061 T6 (Extruded) Under 1 38.0 35.0 81 and over 38.0 35.0 10DT6 (Drawn) Under 1 42.0 35.0 8E1 and over 38.0 35.0 10F6063 T6 All 30.0 25.0 86064 T6 All 42.0 38
43、.0 106082 T6 All 45.0 38.0 86105 T1 All 25.0 15.0 16T5 All 38.0 35.0 86262 T6 All 38.0 35.0 106351 T5 All 38.0 35.0 10DT6 All 42.0 37.0 10GAThe basis for establishment of tensile property limits is shown in Annex A1.BFor purposes of determining conformance with this specification, each value for ten
44、sile strength and yield strength shall be rounded to the nearest 0.1 ksi, and each valuefor elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding-off method of Practice E29.CElongation of full-section and cut-out sheet-type specimens is measured in 2 in.; of round sp
45、ecimens, in 4 specimen diameter.DFor wall thicknesses less than 0.250 in., the minimum elongation is 8 %.EFor wall thickness 0.050 to 0.259 in., the minimum elongation is 10 %.FFor wall thickness 0.260 to 0.500 in., the minimum elongation is 12 %.GFor wall thickness less than 0.125 in., the minimum
46、elongation is 8 %.B241/B241M 163requirements 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 order or at the time of contractsigning. The purchaser
47、shall have the right to perform any ofthe inspections and tests set forth in this specification wheresuch inspections and tests are deemed necessary to ensure thatmaterial conforms to prescribed requirements.6.2 Lot DefinitionAn inspection lot shall be defined asfollows:6.2.1 For heat-treated temper
48、s, an inspection lot shall con-sist of an identifiable quantity of material of the same millform, alloy, temper, and nominal dimensions traceable to aheat-treat lot or lots, and subjected to inspection at one time.6.2.2 For non-heat treated tempers, an inspection lot shallconsist of an identifiable
49、quantity of material of the same millform alloy, temper, and nominal dimensions subjected toinspection at one time.7. Composition7.1 LimitsThe pipe or tube shall conform to the compo-sition limits specified in Table 5. Conformance shall bedetermined by the producer, by taking samples in accordancewith Practices E716, when the ingots are poured, and analyzingthose samples in accordance with Test Methods E34, E607,E1251, or EN 14242. At least one sample shall be taken foreach group of ingots poured simultaneously from the samesource of molten
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