1、Designation: B643 12 (Reapproved 2016)Standard 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 year of last revisio
2、n. 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 U.S. Department of Defense.1. Scope*1.1 This specification establishes requirements
3、 for copper-beryllium alloy seamless tube in straight lengths. CopperAlloyUNS C17200 will be the alloy furnished whenever Specifica-tion B643 is specified.1.2 UnitsThe values stated in inch-pound units are to beregarded as standard. The values given in parentheses aremathematical conversions to SI u
4、nits that are provided forinformation only and are not considered standard.1.3 The following safety hazard caveat pertains only to thetest methods described in this specification.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is therespon
5、sibility of the user of this standard to establish appro-priate safety and health practices and determine the 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
6、to theextent referenced herein:2.2 ASTM Standards:2B194 Specification for Copper-BerylliumAlloy Plate, Sheet,Strip, and Rolled BarB251 Specification for General Requirements for WroughtSeamless Copper and Copper-Alloy TubeB601 Classification for Temper Designations for Copper andCopper AlloysWrought
7、 and CastB846 Terminology for Copper and Copper AlloysE3 Guide for Preparation of Metallographic SpecimensE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conf
8、ormance with SpecificationsE112 Test Methods for Determining Average Grain SizeE255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)3. Terminology3.1 DefinitionsFor terms rela
9、ting to copper and copperalloys, refer to Terminology B846.3.2 Definitions of Terms Specific to This Standard:3.2.1 stock, nstraight lengths that are mill cut and storedin 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 lengthtolerances
10、.4. General Requirements4.1 The following sections of Specification B251 constitutea 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 Packagin
11、g and Package Marking.5. Ordering Information5.1 Include the following information when placing ordersfor product under this specification, as applicable:5.1.1 ASTM designation and year of issue,5.1.2 Copper (Alloy) UNS No. designation (see 1.1),5.1.3 Temper (see Section 8),5.1.4 Dimensions, specify
12、 O.D./I.D., O.D./wall, or I.D./walland include length if applicable,5.1.5 How furnished, stock lengths with or without ends,specific lengths with or without ends,5.1.6 Quantity: total weight or number or pieces,5.1.7 Special tests or exceptions, if any,1This specification is under the jurisdiction o
13、fASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct. 1, 2016. Published October 2016. Originallyapproved in 1978. Last previous edition approved in 2012 as B643 12. DOI:10.1520/B0643-12R16.2For referenced
14、 ASTM standards, visit the ASTM website, 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.*A Summary of Changes section appears at the end of this standardCopyright A
15、STM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.1.8 Hardness tests, if required,5.1.9 Special tests such as tension test or grain size, ifrequired,5.1.10 Special marking or packaging, if required,5.1.11 Inspection, if required (see Specificati
16、on B251),5.1.12 Certification, if required (see Specification B251),and5.1.13 Mill test report, if required (see Specification B251).5.2 If the product is purchased for agencies of the U.S.Government (see Supplementary Requirements section ofSpecification B251, for additional requirements, if specif
17、ied).6. Materials and Manufacture6.1 Material:6.1.1 The material of manufacture shall be billets, cast barsor tube of Copper Alloy UNS No. C17200, of such purity andsoundness as to be suitable for processing into the productsprescribed herein.6.1.2 The tube shall have heat traceable identity.6.2 Man
18、ufacture:6.2.1 The product shall be manufactured by such hotworking, cold working, annealing, or precipitation heattreatment, or both, as to produce a uniform wrought structurein the finished product.7. Chemical Composition7.1 The material shall conform to the chemical requirementsin Table 1 for the
19、 copper alloy UNS No. C17200 specified inthis ordering information.7.2 These composition limits do not preclude the presenceof other elements. By agreement between the manufacturer andpurchaser, limits may be established and analysis required forunnamed elements.7.3 For alloys in which copper is lis
20、ted as “remainder,”copper is the difference between the sum of results of allelements determined and 100 %. When all elements in Table 1are determined, the sum of the results shall be 99.5 % mini-mum.8. Temper8.1 The standard tempers for products described in thisspecification are given in Table 2 a
21、nd Table 3.8.1.1 Solution heat-treated TB00 (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 inClassification B601.9. Precipitation Heat
22、Treatment9.1 When material is purchased in the TB00(A) or theTD04(H) tempers, the precipitation heat treatment is per-formed by the purchaser.9.2 When testing for conformance to the TF00(AT) and theTH04(HT) property requirements shown in Table 3 for prod-ucts supplied in the TB00(A) and TD04(H) temp
23、ers, theappropriate test specimens shall be heat treated for times andtemperatures within those stated in Table 4. The times andtemperatures used by the manufacturer to qualify the materialwill be stated on the mill test report. The use of other times andtemperatures, within the allowable ranges, sh
24、own in Table 4,may produce properties other than those stated on the mill testreport. This will not be cause for rejection.9.3 This material may be heat-treated at other times andtemperature for specific applications. These special combina-tions of properties, such as increased ductility, dimensiona
25、laccuracy, endurance life, may be obtained by specialprecipitation-hardening heat treatments. The mechanical re-quirements of Table 3 do not apply to such special heattreatments. Specific test requirements as needed shall be agreedupon between the manufacturer, or supplier, and the purchaserof the e
26、nd product.9.4 TF00 (AT) and TH04 (HT) tempers are standard mill-hardened products that have been precipitation heat-treated andtested by the manufacturer. An appropriate time and tempera-ture has been used to produce properties within the specifica-tion limits shown in Table 3. Table 4 does not app
27、ly. Further,thermal treatments of these tempers is not normally required.10. Physical Property Requirements10.1 Microstructure and Grain Size10.1.1 The product in the precipitation heat-treated condi-tion shall have a microstructure with a minimum of secondphase (beta) constituents.10.1.2 Grain size
28、, if required, shall be agreed upon betweenthe purchaser and the manufacturer or the supplier and shall bedetermined in accordance with Test Methods E112.11. Mechanical Property Requirements11.1 Rockwell Hardness Requirement:11.1.1 Product furnished under this specification shall con-form to the Roc
29、kwell hardness requirements in Table 2 andTable 3, when tested in accordance with Test Methods E18.11.1.2 Acceptance or rejection based on mechanical prop-erties shall depend only on Rockwell hardness.11.1.3 Where agreement on Rockwell hardness tests cannotbe reached, the tensile strength requiremen
30、ts of Table 2 andTable 3 shall be the basis for acceptance or rejection.11.2 Tension Strength Requirements:11.2.1 When specified in the contract or purchase order,product furnished under this specification shall conform to theTABLE 1 Chemical RequirementsElementComposition, %Copper Alloy UNS No. C17
31、200Beryllium 1.802.00Additive elements:Nickel + cobalt, min 0.20Nickel + cobalt + iron, max 0.6Aluminum, max 0.20Silicon, max 0.20Copper remainderB643 12 (2016)2tensile strength requirements in Table 2 and Table 3, whentested in accordance with Test Methods E8/E8M.11.2.2 Only when specified in the c
32、ontract or purchaseorder, acceptance or rejection based upon mechanical proper-ties shall depend only on tensile strength.12. Dimensions, Mass and Permissible Variations12.1 General:12.1.1 The standard method of specifying wall thicknessshall be in decimal fractions of an inch.12.1.2 For the purpose
33、 of determining conformance with thedimensional requirements prescribed in this specification, anymeasured value outside the specified values for any dimensionmay be cause for rejection.12.1.3 Tolerances on a given tube may be specified withrespect to any two, but not all three, of the following: ou
34、tsidediameter, inside diameter, wall thickness.NOTE 1Blank spaces in the tolerance tables indicate either that thematerial is not generally available or no tolerances have been established.12.2 Wall-Thickness TolerancesWall-thickness tolerancesshall be in accordance with Table 5 and Table 6.12.3 Dia
35、meter TolerancesDiameter tolerances shall be inaccordance with Table 7.12.4 Length TolerancesLength tolerances shall be in ac-cordance with Table 8.12.5 SquarenessFor tube in straight lengths, the departurefrom squareness of the end shall not exceed the following:Specified OutsideDiameter, in. (mm)
36、Tolerance, in./in. (mm/mm)34 (19.1) and over116 (1.6)12.6 StraightnessRefer to Table 7 of Specification B251.13. Sampling13.1 SamplingThe lot size, portion size, and selection ofsample pieces shall be as follows:13.1.1 Lot SizeThe lot size shall be 10 000 lb or fractionthereof.13.1.2 Portion SizeTwo
37、 sample pieces shall be taken fromeach lot.14. Number of Tests and Retests14.1 Test:14.1.1 Section 8, on Tests, of Specification B251 constitutesthis part of this specification.14.2 Other Tests:14.2.1 Test specimens shall be taken from the sample piecesselected in accordance with 13.1 for any other
38、tests required onthe contract or purchase order.14.2.1.1 In the case of product produced to the TB00 orTD04 condition, two test specimens shall be taken from eachsample piece. One is to be tested in the as-sampled conditionand one in the precipitation heat-treated condition.14.2.1.2 In the case of p
39、roduct produced to the precipitationheat-treated condition, one specimen from each sample shall betested.TABLE 2 Mechanical Property Requirements Before Precipitation Heat TreatmentTemper DesignationADiameter Distance BetweenCross-SectionalParallel Surfaces, in. (mm)RockwellHardness,BB ScaleTensile
40、StrengthCStandard Former ksiD(MPa)TB00 Solution-heat treated (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
41、 the normal commercial acceptance criterion. Mechanical properties 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)Rock
42、wellHardness, C,minTensile StrengthCYield Strength (min) (0.2 %Offset)Elongation(min) in 4 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(12
43、101480) 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 app
44、ly only when specifically required.Dksi = 1000 psi.EThe upper limits in the tensile strength column are for design guidance only.TABLE 4 Standard Precipitation Heat-Treatment Time forAcceptance TestsTemper DesignationDiameterTime at600to 675F(316 to357C), hBefore HardeningStandard FormerTF00TH04Solu
45、tion-heat treated (A)Hard (H)all sizesall sizes3423B643 12 (2016)314.2.2 If microstructure and grain-size are required on thecontract or purchase order, the following shall occur:14.2.2.1 In the case of product produced to the TB00 orTD04 condition, one specimen shall be taken from eachsample, preci
46、pitation heat-treated, and tested.14.2.2.2 In the case of product produced to the precipitationheat-treated condition, one specimen from each sample shall betested.14.3 Retests:14.3.1 Section 8, on Retests, of Specification B251 consti-tutes this part of this specification.TABLE 5 Wall-Thickness Tol
47、erancesTD04 (H) and TH04 (HT) TempersANOTE 1Maximum Deviation of Any PointThe following tolerances are plus and minus: if tolerances all plus or all minus are desired double thevalues given.Wall Thickness, in. (mm)Outside Diameter, in. (mm)Over58 to1 (15.9 to 25.4),inclOver 1 to 2(25.4 to 50.8),incl
48、Over 2 to 4(50.8 to 102),inclOver 4 to 7(102 to 173),inclOver 7 to 12(173 to 305),incl. . . .Over 0.034 (0.864), to 0.057 (1.45) incl 0.0045 (0.11) 0.0045 (0.11) 0.0065 (0.17) 0.009 (0.23) .Over 0.057 (1.45) to 0.082 (2.08) incl 0.005 (0.13) 0.005 (0.13) 0.0075 (0.19) 0.010 (0.25) 0.013 (0.33)Over 0
49、.082 (2.08) to 0.119 (3.02) incl 0.0065 (0.17) 0.0065 (0.17) 0.009 (0.23) 0.011 (0.28) 0.014 (0.36)Over 0.119 (3.02) to 0.164 (4.17) incl 0.007 (0.18) 0.0075 (0.19) 0.010 (0.25) 0.013 (0.33) 0.015 (0.38)Over 0.164 (4.17) to 0.219 (5.56) incl 0.009 (0.23) 0.010 (0.25) 0.012 (0.30) 0.015 (0.38) 0.018 (0.46)Over 0.219 (5.56) to 0.283 (7.19) incl 0.012 (0.30) 0.013 (0.33) 0.015 (0.38) 0.018 (0.46) 0.020 (0.51)Over 0.283 (7.19) to 0.379 (9.62) incl 0.014 (0.36) 0.015 (0.38) 0.018 (0.46) 6 %B6%BOver 0.379 (9.62) . 6 %B6%B6%B6%BAWhen tube is
