1、Designation: B 937 04Standard Specification forCopper-Beryllium Seamless Tube (UNS Nos. C17500 andC17510)1This standard is issued under the fixed designation B 937; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes the requirements forcopper-beryllium alloy seamless tube in straight lengths.Copper-cobalt-b
3、eryllium alloy UNS No. C17500 and copper-nickel-beryllium alloy UNS No. C17510 will be the alloysfurnished whenever this specification 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 units, w
4、hich are provided forinformation only and are not considered standard.1.3 The following safety hazard caveat pertains only to thetest method(s) described in this specification. This standarddoes not purport to address all of the safety concerns, if any,associated with its use. It is the responsibili
5、ty of the user of thisstandard to establish appropriate safety and health practicesand to determine the applicability of regulatory limitationsprior 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 theex
6、tent referenced herein:2.2 ASTM Standards:2B 193 Test Method for Resistivity of Electrical ConductorMaterialsB 194 Specification for Copper-Beryllium Alloy Plate,Sheet, Strip, and Rolled BarB 251 Specification for General Requirements for WroughtSeamless Copper and Copper-Alloy TubeB 601 Classificat
7、ion for Temper Designations for Copperand Copper AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsE 255 Practice for Sampling Coppe
8、r and Copper Alloys forthe Determination of Chemical CompositionE 1004 Practice for Determining Electrical ConductivityUsing the Electromagnetic (Eddy-Current) Method3. General Requirements3.1 The following sections of Specification B 251 (as noted)constitute a part of this specification:3.1.1 Workm
9、anship, Finish, and Appearance,3.1.2 Number of Tests and Retests,3.1.3 Significance of Numerical Limits,3.1.4 Inspection,3.1.5 Rejection and Rehearing,3.1.6 Certification,3.1.7 Mill Test Report, and3.1.8 Packaging and Package Marking.4. Terminology4.1 For definitions of terms related to copper and c
10、opperalloys, refer to Terminology B 846.4.2 Definitions of Terms Specific to This Standard:4.2.1 average diameter (for round tubes only), ntheaverage of the maximum and minimum outside diameters, ormaximum and minimum inside diameters, whichever is appli-cable, as determined at any one cross section
11、 of the tube.4.2.2 lengths, nstraight pieces of the product4.2.2.1 ends, nstraight pieces, shorter than the nominallength, left over after cutting the product into mill lengths,stock lengths, or specific lengths. They are subject to minimumlength and maximum weight requirements.4.2.2.2 specific, adj
12、straight lengths that are uniform inlength, as specified, and subject to established length toler-ances.4.2.2.3 specific with ends, adjspecific lengths, includingends.4.2.2.4 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
13、.66, or 6.10 m) and subject to established lengthtolerances.4.2.2.5 stock with ends, adjstock lengths, including ends.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition
14、approved May 1, 2004. Published May 2004.2For referenced 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.1Copyright ASTM Inte
15、rnational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.2.3 tube, na hollow product of round or any other crosssection having a continuous periphery.4.2.3.1 tube, seamless, adja tube produced with a con-tinuous periphery in all stages of the operations.5. Ord
16、ering Information5.1 Include the following information when placing ordersfor product under this specification, as applicable:5.1.1 Quantity, number of pieces or pounds,5.1.2 Copper Alloy UNS No. designation (see 1.1),5.1.3 Temper (see section 8)5.1.4 Dimensions, including length if applicable. For
17、tubeor pipe specify either OD/ID, OD/wall, or ID/wall.5.1.5 How furnished: stock lengths with or without ends,specific lengths with or without ends,5.1.6 ASTM designation and year of issue,5.1.7 Special tests or exceptions, if any,5.1.8 Hardness tests, if required,5.1.9 Special tests such as tension
18、 test, if required,5.1.10 Special marking or packaging, if required,5.1.11 Inspection, if required (see Specification B 251),5.1.12 Certification, if required (see Specification B 251),5.1.13 Mill test report, if required (see Specification B 251).5.2 When material is purchased for agencies of the U
19、.S.government, this shall be specified in the contract or purchaseorder, and the material shall conform to the SupplementaryRequirements as defined in the current issue of SpecificationB 251.6. Materials and Manufacture6.1 Materials:6.1.1 The material of manufacture shall be UNS Alloy No.C17500 or C
20、17510, cast and worked into tubular form, and ofsuch purity and soundness as to be suitable for processing intothe products prescribed herein.6.1.2 The tube shall have heat traceable identity.6.2 Manufacture:6.2.1 The product shall be manufactured by a combinationof hot working or cold working, or b
21、oth; annealing; orprecipitation heat treatment, or both, as to produce a uniformwrought structure in the finished product, to meet the temperspecified.7. Chemical Composition7.1 The material shall conform to the chemical compositionrequirements in Table 1 for the copper alloy designated in theorderi
22、ng 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 elements7.3 For alloys in which copper is listed as “Remainder,”copper is the difference between t
23、he sum of results of allelements determined and 100 %. When all elements in Table 1are determined, the sum of results shall be 99.5 % min.8. Temper8.1 Tempers, as described in Classification B 601, availableunder this specification are: TB00 (solution treated (A), TF00(precipitation hardened (AT), T
24、D04 (solution heat-treated andcold worked: hard (H), and TH04 (hard and precipitationheat-treated (HT). These products meet property requirementsin Table 2.9. Precipitation Heat Treatment9.1 When material is purchased in the TB00 (A) or theTD04 (H) tempers, the precipitation heat treatment is per-fo
25、rmed by the purchaser.9.2 Conformance to the TF00 (AT) and TH04 (HT) speci-fication limits shown in Table 2, for products supplied in theTB00 (A) or the TD04 (H) tempers, shall be determined bytesting test specimens heat-treated at a uniform temperature of850 to 900F for the times shown in Table 3.9
26、.3 End products may be heat-treated at other times andtemperatures for specific applications. These special combina-tions of properties such as increased ductility, dimensionalaccuracy, and endurance strength may be obtained by specialprecipitation-hardening heat treatments. The mechanical re-quirem
27、ents of Table 2 do not apply to such special heattreatment. Specific test requirements as needed shall be agreedupon between the manufacturer or the supplier and the pur-chaser of the end product.9.4 TF00 (AT) and TH04 (HT) tempers as standard mill-hardened products has been precipitation heat-treat
28、ed andtested by the manufacturer. An appropriate time and tempera-ture has been used to produce properties within the specifica-tion limits shown in Table 2. Table 3 does not apply. Furtherthermal treatment of these tempers is not normally required.9.5 Material may be supplied with nonstandard prope
29、rties.Table 2 values would not apply. Specific test requirements asneeded shall be agreed upon between the manufacturer orsupplier and the purchaser of these end products.10. Physical Property Requirements10.1 Electrical ConductivityProduct furnished to thisspecification shall conform to the electri
30、cal conductivity re-quirement given in Table 2 for the applicable temper, whentested in accordance with Practice E 1004 or by convertingfrom resistivity measured in accordance with Test MethodB 193.11. Mechanical Property Requirements11.1 Mechanical property requirements are specified inTable 2.TABL
31、E 1 Chemical CompositionConcentration, %ElementCopper AlloyUNS No.C17500Copper AlloyUNS No.C17510Beryllium 0.4-0.7 0.2-0.6Cobalt 2.4-2.7 0.3 maxNickel 1.4-2.2Iron, max 0.10 0.10Aluminum, max 0.20 0.20Silicon, max 0.20 0.20Copper Remainder RemainderB93704211.2 Rockwell HardnessRockwell hardness is th
32、e productacceptance criteria, when tested in accordance with TestMethods E18 for product larger than38 in. (9.5 mm) innominal diameter or distance between parallel surfaces, andother shapes having a nominal cross sectional area larger than0.141 in.2(91 mm2).11.2.1 The referee product rejection crite
33、ria shall be tensileresults, when rested in accordance with Test Methods E8.11.3 Tension TestThe tension test will be used for quali-fication of all material when specifically required by thepurchaser, as in some government requirements.12. Purchases for the U.S. Government12.1 When specified in the
34、 contract or purchase order,product purchased for agencies of the U.S. government shallconform to the special government regulations specified in theSupplemental Requirements section of Specification B 251.13. Dimensions, Mass, and Permissible Variation13.1 The standard method of specifying wall thi
35、ckness shallbe in decimal fractions of an inch.13.1.1 For the purpose of determining conformance with thedimensional requirements prescribed in this specification, anymeasured value outside the specified values for any dimensionmay be cause for rejection.13.1.2 Tolerances on a given tube may be spec
36、ified withrespect to any two, but not all three, of the following: outsidediameter, inside diameter, wall thicknessNOTE 1Blank spaces in the tolerance tables indicate either that thematerial is not generally available or no tolerances have been established.13.2 Wall-Thickness Tolerances-Wall-thickne
37、ss tolerancesshall be in accordance with Table 4 and Table 5.13.3 Diameter Tolerances-Diameter Tolerances shall be inaccordance with Table 6.13.4 Length Tolerances-Length tolerances shall be in accor-dance with Table 713.5 Squareness-For tube in straight lengths, the departurefrom squareness of the
38、end shall not exceed the following:Specified OutsideDiameter, in. (mm) Tolerance, in./in. (mm/mm)34 (19.1) and over 0.062TABLE 2 Tensile Strength and Rockwell Hardness RequirementsATemper Designation As SuppliedStandard FormerTensileStrengthKsiB(MPaC)RockwellHardness,B ScaleElectricalConductivityIAC
39、S min, %TB00 Solution heat-treated (A) 35-55 (240-380) 50 max 20TD04 Solution heat-treated andcold-worked hard (H)65-80 (450-550) 60-80 20After Precipitation Heat TreatmentTF00 Precipitation hardened (AT) 100-130 (690-895)D92-100 45TH04 Hard and precipitation heat-treated (HT)110-140 (760-965)D95-10
40、2 48AThese values apply to mill products. See Section 10 for exceptions in end products.Bksi = 1000 psi.CSee Appendix.DThe upper limits in the tensile strength column are for design guidance only.TABLE 3 Precipitation Heat-Treatment Time for Acceptance TestsTemper Designation Copper Alloy UNSNo. 175
41、00 At900F (482C), hCopper Alloy UNSNo. C17510 At850F (454C)Ato900F (482C)A,hStandard FormerTB00 Solution heat-treated (A) 3 3TD04 Solution heat-treated and cold-worked:hard (H)22ASpecific temperature used must conform with suppliers certification.TABLE 4 Wall-Thickness TolerancesTB00 (A) and TF00 (A
42、T) 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)5/8to1(15.9 to 25.4)Over 1 to 2(25.4 to 50.8)Over 2 to 4(50.8 to 102)Over 4(102)Over 0.
43、125 (3.2) to 0.250 (6.5) incl 60.014 (0.36) 60.017 (0.43) 60.020 (0.51) 60.030 (0.76)Over 0.250 (6.5) to 0.500 (12.7) incl 60.017 (0.43) 60.023 (0.58) 60.032 (0.81) 60.053 (1.35)Over 0.500 (12.7) to 1.000 (25.4) incl 60.030 (0.76) 60.053 (1.35) 60.083 (2.11)Over 1.000 (25.4) 60.068 (1.73) 60.098 (2.
44、49)AWhen tube is ordered by outside and inside diameters, the maximum plus and minus deviation of the wall thickness from the nominal at any point shall not exceedthe values given in this table more than 50 %.B93704313.6 Straightness-Refer to Table 7 of Specification B 251.14. Workmanship, Finish an
45、d Appearance14.1 The product shall be free of defects, but blemishes ofa nature that do not interfere with the intended application areacceptable.15. Sampling15.1 Refer to sampling section in Specification B 251.15.2 SamplingSample pieces shall be taken from a heatand lot of material processed simul
46、taneously in the sameequipment, as follows:15.2.1 HeatA heat shall be the result of castings pouredsimultaneously from the same source of molten metal15.2.2 LotThe lot shall be a heat, or fraction thereof.16. Specimen Preparation16.1 Chemical AnalysisSample preparation shall be inaccordance with Pra
47、ctice E 255.16.1.1 Analytical specimen preparation shall be the respon-sibility of the reporting laboratory.16.2 Tension TestsSample preparation shall be in accor-dance with Specification B 251.16.3 Rockwell HardnessThe test specimens shall be of asize and shape to permit testing by the available te
48、st equipmentand shall permit testing in a plane parallel to the direction ofdeformation given to the product.16.3.1 The surface of the test specimens shall be sufficientlysmooth and even to permit the accurate determination ofhardness.16.3.2 Each specimen shall be free of scale and foreignmatter and
49、 care shall be taken to avoid change in condition,that is, heating or cold working17. Test Methods17.1 Chemical AnalysesThe chemical composition shall,in cases of disagreement, be determined in accordance with theapplicable method in Annex A1 of Specification B 194.17.2 Tension TestsTension tests, when required, shall bemade according to Test Methods E8.18. Test Report18.1 When specified in the contract or purchase order, areport of test results shall be furnished.19. Keywords19.1 beryllium copper tube; UNS No. C17500; UNS No.C17510TABLE
