1、Designation:B64300 (Reapproved 2005) Designation: B643 12Standard Specification forCopper-Beryllium Alloy Seamless Tube1This standard is issued under the fixed designation B643; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the y
2、ear 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification establishe
3、s requirements for copper-beryllium alloy seamless tube in straight lengths. Copper Alloy UNSC17200 will be the alloy furnished whenever Specification B643 is specified.1.2 UnitsThe values stated in inch-pound units are to be regarded as standard. The values given in parentheses aremathematical conv
4、ersions to SI units that are provided for information only and are not considered standard.1.3 The following safety hazard caveat pertains only to the test methods described in this specification.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its us
5、e. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on date of material purchase form a part of thi
6、s specification to the extentreferenced herein:2.2 ASTM Standards:2B194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled BarB251 Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy TubeB601 Classification for Temper Designations for Copper and
7、Copper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysE3 Guide for Preparation of Metallographic SpecimensE88/E8M Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic MaterialsE29 Practice for Using Significant Digits in Test Da
8、ta to Determine Conformance with SpecificationsE112 Test Methods for Determining Average Grain SizeE255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)3. General Requiremen
9、ts3.1The following sections of Specification B251 (as noted) constitute a part of this specification:3.1.1Workmanship, Finish and Appearance,3.1.2Significance of Numerical limits,3.1.3Inspection,3.1.4Rejection and Rehearing,3.1.5Certification,3.1.6Mill Test Report, and3.1.7Packaging and Package Mark
10、ing.1This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe andTube.Current edition approved Oct. 1, 2005. Published October 2005. Originally approved in 1978. Last previous edition approved in 20
11、00 as B643001. DOI:10.1520/B0643-00R05.Current edition approved April 1, 2012. Published May 2012. Originally approved in 1978. Last previous edition approved in 2005 as B643 00 (2005). DOI:10.1520/B0643-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Custome
12、r Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This 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
13、previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends 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
14、 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.4.Terminology4.13.1 DefinitionsFor terms relating to copper and copper alloys, refer to Terminology B846.4.23.2 Definitions of Terms
15、Specific to This Standard:4.2.1average diameter (for round tubes only)3.2.1 stock, nthe average of the maximum and minimum outside diameters, or maximum and minimum inside diameters,whichever is applicable, as determined at any one cross section of the tube.4.2.2lengths, nstraight pieces of the prod
16、uct.4.2.2.1ends, nstraight pieces, shorter than the nominal length, left over after cutting the product into mill lengths, stocklengths, or specific lengths. They are subject to minimum length and maximum weight requirements.4.2.2.2specific, adjstraight lengths that are uniform in length, as specifi
17、ed, and subject to established length tolerances.4.2.2.3specific with ends, adjspecific lengths, including ends.4.2.2.4stock, nstraight lengths that are mill cut and stored in advance of orders. They are usually 8, 10, 12, or 20 ft (2.44, 3.05,3.66, or 6.10 m) and subject to established length toler
18、ances.4.2.2.5stock with ends, adjstock lengths, including ends.4.2.3tube, na hollow product of round or any other cross section having a continuous periphery.4.2.3.1tube, seamless, adja tube produced with a continuous periphery in all stages of the operations.4. General Requirements4.1 The following
19、 sections of Specification B251 constitute a part of this specification:4.1.1 Workmanship, Finish and Appearance,4.1.2 Significance of Numerical limits,4.1.3 Inspection,4.1.4 Rejection and Rehearing,4.1.5 Certification,4.1.6 Mill Test Report, and4.1.7 Packaging and Package Marking.5. Ordering Inform
20、ation5.1Include the following information:5.1.1Quantity, number of pieces or pounds,5.1.2Copper (Alloy) UNS number (see5.1 Include the following information when placing orders for product under this specification, as applicable:5.1.1 ASTM designation and year of issue,5.1.2 Copper (Alloy) UNS No. d
21、esignation (see 1.1),5.1.3 Temper (see Section 8),5.1.4Dimensions, including length if applicable,5.1.4 Dimensions, specify O.D./I.D., O.D./wall, or I.D./wall and include length if applicable,5.1.5 How furnished, stock lengths with or without ends, specific lengths with or without ends,5.1.6ASTM des
22、ignation and year of issue,5.1.6 Quantity: total weight or number or pieces,5.1.7 Special tests or exceptions, if any,5.1.8 Hardness tests, if required,5.1.9 Special tests such as tension test or grain size, if required,5.1.10 Special marking or packaging, if required,5.1.11 Inspection, if required
23、(see Specification B251),5.1.12 Certification, if required (see Specification B251), and5.1.13 Mill test report, if required (see Specification B251).5.2When material is purchased for agencies of the U. S. government, this shall be specified in the contract or purchase order,and the material shall c
24、onform to the Supplementary Requirements as defined in the current issue of Specification5.2 If the product is purchased for agencies of the U. S. Government (see Supplementary Requirements section of SpecificationB251. , for additional requirements, if specified).6. Materials and Manufacture6.1 Mat
25、erial:6.1.1 The material of manufacture shall be Alloy C17200, billets, cast and worked into tubular form, andbars or tube of CopperAlloy UNS No. C17200, of such purity and soundness as to be suitable for processing into the products prescribed herein.6.1.2 The tube shall have heat traceable identit
26、y.B643 1226.2 ManufactureThe :6.2.1 The product shall be manufactured by a combination of such hot andworking, cold working, annealing, or precipitationheat treatment, or both, as to produce a uniform wrought structure in the finished product, to meet the temper specified. product.7. Chemical Compos
27、ition7.1 The material shall conform to the chemical requirements shown in Table 1 .7.2These composition limits do not preclude the presence of other elements. Limits may be established and analysis requiredfor unnamed elements by agreement between the manufacturer and purchaser. Copper may be given
28、as remainder and may be takenas the difference between the sum of all elements analyzed and 100%. When all elements in for the copper alloy UNS No. C17200specified in this ordering information.7.2 These composition limits do not preclude the presence of other elements. By agreement between the manuf
29、acturer andpurchaser, limits may be established and analysis required for unnamed elements.7.3 For alloys in which copper is listed as “remainder,” copper is the difference between the sum of results of all elementsdetermined and 100 %. When all elements in Table 1 are analyzed, their sum shall be 9
30、9.5% minimum. are determined, the sumof the results shall be 99.5 % minimum.8. Temper8.1Tempers available under this specification are solution heat-treated TB00 (A) and cold drawn hard TD04 (H), to beprecipitation heat-treated by the user (see8.1 The standard tempers for products described in this
31、specification are given in Table 2 ). Also available are products alreadyprecipitation heat-treated by the manufacturer, tempers TF00 (AT) and TH04 (HT). These products meet property requirements inand Table 3and normally require no further heat treatment by the user. .8.1.1 Solution heat-treated TB
32、00 (A).8.1.2 Heat Treated and Cold Worked to hard temper TD04 (H).8.1.3 Precipitation Hardened TF00 (AT).8.1.4 Hard and Precipitation Heat Treated TH04 (HT).8.2 Tempers available under this specification are defined in Classification B601.9. Precipitation Heat Treatment9.1 When material is purchased
33、 in the TB00(A) or the TD04(H) tempers, the precipitation heat treatment is performed by thepurchaser.9.2 When testing for conformance to the TF00(AT) and the TH04(HT) property requirements shown in Table 3 for productssupplied in the TB00(A) and TD04(H) tempers, the appropriate test specimens shall
34、 be heat treated for times and temperatureswithin those stated in Table 4. The times and temperatures used by the manufacturer to qualify the material will be stated on themill test report. The use of other times and temperatures, within the allowable ranges, shown in Table 4, may produce properties
35、other than those stated on the mill test report. This will not be cause for rejection.9.3 This material may be heat-treated at other times and temperature for specific applications. These special combinations ofproperties, such as increased ductility, dimensional accuracy, endurance life, may be obt
36、ained by special precipitation-hardeningheat treatments. The mechanical requirements of Table 3 do not apply to such special heat treatments. Specific test requirementsas needed shall be agreed upon between the manufacturer, or supplier, and the purchaser of the end product.9.4 TF00 (AT) and TH04 (H
37、T) tempers are standard mill-hardened products that have been precipitation heat-treated and testedby the manufacturer.An appropriate time and temperature has been used to produce properties within the specification limits shownin Table 3. Table 4 does not apply. Further, thermal treatments of these
38、 tempers is not normally required.10. Physical Property Requirements10.1 Microstructure and Grain Size10.1.1 The product in the precipitation heat-treated condition shall have a microstructure with a minimum of second phase(beta) constituents.TABLE 1 Chemical RequirementsElementComposition, %Copper
39、Alloy UNS No. C17200Beryllium 1.802.00Additive elements:Nickel + cobalt, min 0.20Nickel + cobalt + iron, max 0.6Aluminum, max 0.20Silicon, max 0.20Copper remainderB643 12310.1.2 Grain size, if required, shall be agreed upon between the purchaser and the manufacturer or the supplier and shall bedeter
40、mined in accordance with Test Methods E112.11. Mechanical Property Requirements11.1Mechanical property requirements are as specified in Tables 2 and 311.1 Rockwell Hardness Requirement :11.1.1 Product furnished under this specification shall conform to the Rockwell hardness requirements in Table 2 a
41、nd Table 3,when tested in accordance with Test Method E18.11.1.2 Acceptance or rejection based on mechanical properties shall depend only on Rockwell hardness.11.1.3 Where agreement on Rockwell hardness tests cannot be reached, the tensile strength requirements of Table 2 and Table3 shall be the bas
42、is for acceptance or rejection.11.2 Rockwell HardnessRockwell hardness normally is used as the acceptance or rejection test for any product form for anytemper.11.3Tension TestTension test properties apply for acceptance or rejection, only when specifically required in the contract orpurchase order.
43、Tension Strength Requirements :11.2.1 When specified in the contract or purchase order, product furnished under this specification shall conform to the tensilestrength requirements in Table 2 and Table 3, when tested in accordance with Test Method E8/E8M.11.2.2 Only when specified in the contract or
44、 purchase order, acceptance or rejection based upon mechanical properties shalldepend only on tensile strength.12. Dimensions, Mass,Mass and Permissible Variations12.1 General:12.1.1 The standard method of specifying wall thickness shall be in decimal fractions of an inch.12.1.2 For the purpose of d
45、etermining conformance with the dimensional requirements prescribed in this specification, anymeasured value outside the specified values for any dimension may be cause for rejection.12.1.3 Tolerances on a given tube may be specified with respect to any two, but not all three, of the following: outs
46、ide diameter,inside diameter, wall thickness.TABLE 2 Mechanical Property Requirements Before Precipitation Heat TreatmentTemper DesignationADiameter Distance BetweenCross-SectionalParallel Surfaces, in. (mm)RockwellHardness,BB ScaleTensile StrengthCStandard Former ksiD(MPa)TB00 Solution-heat treated
47、 (A)34 (19.1) and over 4585 6085 (410570)TD04 Hard (H)34 (19.1) and over 88103 85115 (590800)AStandard designations defined in Classification B601.BHardness values shown apply only to direct determinations, not converted values.CHardness is the normal commercial acceptance criterion. Mechanical prop
48、erties apply only when specifically required.Dksi = 1000 psi.TABLE 3 Tensile Strength and Hardness Requirements After Precipitation Heat TreatmentATemper DesignationBDiameter or DistanceBetween Cross-SectionalParallel Surfaces, in. (mm)RockwellHardness, C,minTensile StrengthCYield Strength (min) (0.
49、2 %Offset)Elongation(min) in4 3 DStandard Former ksiD(MPa) ksi (MPa)TF00 AT58 (15.9) and over 36 165190E(11401310) 130 (900) 3 %TH04 HT58 (15.9) to 1 (25.4) incl 38 180215E(12401480) 155 (1070) 4 %Over 1 (25.4) to 2 (50.8) incl 37 175215E(12101480) 150 (1040) 4 %Over 2 (50.8) to 312 (88.9)incl37 175215E(12101480) 140 (970) 4 %AThese values apply to mill products. See 9.3 for exceptions in end products.BStandard designations defined in Classification B601.CHardness is the normal commercial acceptance criterion. Mechanical properties apply only w
