1、Designation: B75 02 (Reapproved 2010)Standard Specification forSeamless Copper Tube1This standard is issued under the fixed designation B75; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.Anumber in paren
2、theses indicates the year of last reapproval.Asuperscriptepsilon () 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 specification2establishes the requirements forseamless round, rec
3、tangular, and square copper tube suitablefor general engineering applications.1.1.1 Tubes made from any of the following Copper UNSNo. designations shall be supplied unless otherwise specified inthe contract or purchase order:Copper UNS No. Type of CopperC10100 Oxygen-free electronicC10200 Oxygen-fr
4、ee without residual deoxidantsC10300 Oxygen-free, extra low phosphorusC10800 Oxygen-free, low phosphorusC12000 Phosphorus deoxidized, low residual phosphorusC12200 Phosphorus deoxidized, high residual phosphorus1.2 The values stated in inch-pound units are the standardexcept for grain size values wh
5、ich are given in SI units.1.3 This specification is the companion to SI SpecificationB75M; therefore no SI equivalents are presented in thisspecification.1.4 The following hazard statement pertains only to the testmethod described in Sections 20.5.2.1, 21.2.9, and 21.2.10 ofthis specification: This
6、standard does not purport to address allof the safety concerns, if any, associated with its use. It is theresponsibility 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
7、.1 ASTM Standards:3B75M Specification for Seamless Copper Tube (Metric)B153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubingB170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB193 Test Method for Resistivity of Electrical ConductorMaterialsB251 Specifi
8、cation for General Requirements for WroughtSeamless Copper and Copper-Alloy TubeB577 Test Methods for Detection of Cuprous Oxide (Hy-drogen Embrittlement Susceptibility) in CopperB601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastE3 Guide for Preparation of Metall
9、ographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)4
10、E112 Test Methods for Determining Average Grain SizeE243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnifie
11、d Numbering System (UNS)3. Terminology, Specific3.1 Definitions of Terms Specific to This Standard:3.1.1 capable ofthe test need not be performed by theproducer of the material. However, if subsequent testing by thepurchaser establishes that the material does not meet theserequirements, the material
12、 shall be subject to rejection.3.1.2 unaided eye, nvisual inspection without the use ofspecial equipment or enhancement excepting the use of cor-rective lenses.1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommitt
13、ee B05.04 on Pipeand Tube.Current edition approved Oct. 1, 2010. Published December 2010. Originallypublished as B75 28T. Last previous edition B75 02. DOI: 10.1520/B0075-02R10.2For ASME Boiler and Pressure Vessel Code applications refer to relatedSpecification SB-75 in Section II of that Code.3For
14、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.4Withdrawn. The last approved version of this historical standard
15、is referencedon www.astm.org.1*A Summary of 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. Ordering Information4.1 Include the following information in orders for prod-ucts.4.1.1
16、 ASTM designation and year of issue (for example,B75 99),4.1.2 Copper UNS No. (for example, C10100),4.1.3 Temper (Section 7),4.1.4 Dimensions; diameter or distance between parallelsurfaces, and wall thickness (Section 16),4.1.5 How furnished; coils or straight lengths,4.1.6 Number of pieces or foota
17、ge; each size and type,4.1.7 Total weight,4.1.8 When product is purchased for ASME Boiler andPressure Vessel Code application, and4.1.9 When product is purchased for agencies of the U.S.Government.4.2 The following options are available and shall be speci-fied at the time of placing the order, when
18、required:4.2.1 Electrical mass resistivity test,4.2.2 Hydrogen embrittlement test,4.2.3 Hydrostatic test,4.2.4 Pneumatic test,4.2.5 Certification, and4.2.6 Test report.5. Material and Manufacture5.1 MaterialThe material of manufacture shall be billets,bars, or tube of Copper UNS5No. C10100, C10200,
19、C10300,C10800, C12000, or C12200, and shall be of such soundness asto be suitable for processing into the tubular products de-scribed.5.2 ManufactureThe tube shall be manufactured by suchhot- and cold-working processes as to produce a homogeneous,uniform wrought structure in the finished product. It
20、 shall becold drawn to the finished size and wall thickness. Whencold-drawn temper is required, the final drawing operationshall be such as to meet the specified temper. When annealedtemper is required, the tube shall be annealed subsequent to thefinal cold draw.6. Chemical Composition6.1 The materi
21、al shall conform to the requirements in Table1 for the specified Copper UNS No. designation.6.1.1 These specification limits do not preclude the presenceof other elements. When included in the contract or purchaseorder, and agreed upon by the manufacturer or supplier and thepurchaser, limits shall b
22、e established and analysis required forunnamed elements.7. Temper7.1 The requirements and size availability of tube in thecold-drawn tempers H55, H58, and H80, as defined in Classi-fication B601, are specified in Table 2.7.1.1 Rectangular, including square, tube shall normally besupplied only in H58
23、 temper. When requested by the manu-facturer or supplier, and upon agreement with the purchaser,tube shall be supplied in H55 or H58 temper.7.1.1.1 For any combination of diameter and wall thicknessnot listed under H80 temper, the requirements specified forH58 temper shall apply.7.2 The requirements
24、 and size availability of tube in theannealed tempers O50 and O60, as defined in ClassificationB601, are specified in Table 2.NOTE 1The purchaser shall confer with the manufacturer or supplierfor the availability of product in a specific temper.NOTE 2Refer to Appendix X1 for recommended applications
25、 basedon temper.8. Grain Size Requirements8.1 Tube in the annealed temper shall conform to the grainsize specified in Table 2.9. Physical Property Requirements9.1 Electrical ResistivityWhen specified in the contract orpurchase order, tube ordered for electrical conductor applica-tion produced from C
26、opper UNS No. C10100, C10200,C10300, or C12000 shall have an electrical mass resistivity,Vg/m2, not to exceed the following limit for the specifiedcopper and temper when tested in accordance with TestMethod B193:TemperCopper UNS No.C10100 C10200 C10300 C12000O60, O50 0.151 76 0.153 28 0.156 14 0.170
27、 31H55, H58, H80 0.156 14 0.157 37 0.159 40 0.174 18NOTE 3Refer to Appendix X2 for the International Annealed CopperStandard (IACS) electrical conductivity equivalents.10. Mechanical Property Requirements10.1 Tensile and Yield Strength:5Refer to Practice E527 for explanation of unified numbering sys
28、tem (UNS).TABLE 1 Chemical RequirementsElementComposition, %Copper UNS No.C10100AC10200BC10300 C10800 C12000 C12200 C14200CopperC, min 99.99 99.95 . . 99.90 99.9 99.40CopperC+phosphorus, min. . 99.95 99.95 . . .PhosphorusArsenic.0.0010.005.0.0050.012.0.0040.012.0.0150.040.0.0150.0400.150.50ARefer to
29、 Table 1, Chemical Requirements, Grade 1, of Specification B170 for impurity limits for Copper UNS No. C10100.BRefer to Table 1, Chemical Requirements, Grade 2, of Specification B170 for impurity limits for Copper UNS No. C10200.CCopper (including silver).B75 02 (2010)210.1.1 The tube shall conform
30、to the requirements of Table2 for the specified temper and wall thickness.10.1.2 For any combination of diameter and wall thicknessnot listed under H80, the requirements for H58 shall apply.10.2 Rockwell Hardness:10.2.1 The tube shall conform to the requirements of Table2 for the specified temper an
31、d wall thickness.10.2.1.1 The Rockwell Hardness values for tube in the H55,H58, and H80 temper shall apply only to the following:(a) Tubes having a wall thickness of 0.020 in. and over,(b) Round tubes having an inside diameter of516 in. andover,(c) Rectangular and square tubes having major distances
32、between parallel surfaces of316 in. and over.10.2.1.2 The Rockwell Hardness values for tube in the O60and O50 temper shall apply only to the following:(a) Tubes having a wall thickness of 0.015 in. and over;(b) Round tubes having an inside diameter of516 in. andover;(c) Rectangular and square tubes
33、having inside major dis-tances between parallel surfaces of316 in. and over.10.3 StraighteningIt shall not be prohibited to use lightstraightening for tube in the O60 and O50 temper.11. Performance Requirements11.1 Expansion Test for Round TubeWhen specified in thecontract or purchase order, anneale
34、d tubes shall be capable ofwithstanding an expansion of the outside diameter of 40 % fortube34 in. and under and 30 % for tube over34 in. The tubeshall show no cracking or rupture visible to the unaided eye.12. Microscopical Examination12.1 Tubes furnished in Copper UNS No. C10100, C10200,C10300, an
35、d C12000 shall be essentially free of cuprous oxideas determined by Procedure A of Test Methods B577.13. Hydrogen Embrittlement13.1 When specified in the contract or purchase order, tubesproduced in all designated copper material shall be capable ofconforming to the requirements of Procedure B of Te
36、stMethods B577.14. Purchases for U.S. Government Agencies14.1 When the contract or purchase order stipulates thepurchase is for an agency of the U.S. Government, the tubesfurnished shall conform to the conditions specified in theSupplementary Requirements of Specification B251.15. Nondestructive Tes
37、t15.1 The tubes shall be tested in the drawn tempers or asdrawn before the final-annealed temper unless otherwiseagreed upon between the manufacturer and the purchaser.15.2 Electromagnetic (Eddy-Current) Test:15.2.1 Each tube up to and including 318 in. in outsidediameter shall be subjected to test.
38、15.2.2 When tested in accordance with Practice E243, tubeswhich do not actuate the signaling device of the testing unitshall be considered as conforming to the requirements of thetest.15.3 Hydrostatic Pressure TestWhen specified in thecontract or purchase order, each tube shall be capable ofwithstan
39、ding an internal hydrostatic pressure sufficient toTABLE 2 Mechanical Property Requirements of Drawn-Temper and Annealed-Temper TubeTemper DesignationOutside Diameter,or MajorDistance BetweenOutside ParallelSurfaces, in.Wall Thickness, in.Rockwell HardnessAverageGrainSize, mmTensile Strength,ksiAYie
40、ldStrength,Bmin.,ksiAStandard Former Scale HardnessH55 light-drawnCall all 30TD30 to 60 3647 30H58 drawn (generalpurpose)all all 30TD30 min 36 min 30H80 hard-drawnCup to 4 0.020 to 0.250, incl 30TD55 min 45 min 40O60 soft anneal all 0.015 to 0.035 15TE60 max 0.040 min 30 min 9F0.035 and over FE50 ma
41、x 0.040 min 30 min 9FO50 light anneal all 0.015 to 0.035 15TE65 max 0.040 max 30 min 9F0.035 and over FE55 max 0.040 max 30 min 9FAksi = 1000 psi.BYield strength to be determined at 0.5 % extension under load.CLight-drawn and hard-drawn tempers are normally available in round tubes only.DRockwell ha
42、rdness values shall apply only to tubes having a wall thickness of 0.020 in. or over, to round tubes having an inside diameter of516 in. or over, and torectangular including square tubes having an inside major distance between parallel surfaces of316 in. or over. Rockwell hardness tests shall be mad
43、e on the inside surfaceof the tube. When suitable equipment is not available for determining the specified Rockwell hardness, other Rockwell scales and values shall be specified subject toagreement between purchaser and supplier.ERockwell hardness values shall apply only to tubes having a wall thick
44、ness of 0.015 in. or over, to round tubes having an inside diameter of516 in. or over, and torectangular including square tubes having an inside major distance between parallel surfaces of316 in. or over. For all other tube no Rockwell values shall apply. Rockwellhardness tests shall be made on the
45、inside surface of the tube. When suitable equipment is not available for determining the specified Rockwell hardness, other Rockwellscales and values shall be specified subject to agreement between purchaser and supplier.FLight-straightening operation is acceptable.B75 02 (2010)3produce a fiber stre
46、ss of 6000 psi without leakage. The tubeneed not be subjected to a pressure gage reading over 1000 psiunless specifically stipulated in the contract or purchase order.15.4 Pneumatic Pressure TestWhen specified in the con-tract or purchase order, each tube shall be capable of with-standing an interna
47、l air pressure of 60 psi, minimum, for 5 swithout leakage.16. Dimensions, Mass, and Permissible Variations16.1 The dimensions and tolerances for product furnished tothis specification shall be as specified in the following tablesand related sections of the current edition of SpecificationB251:16.1.1
48、 Wall Thickness TolerancesRefer to Tables 1 and 2.16.1.2 Tolerances for Diameter or Distance Between Par-allel SurfacesRefer to Tables 3 and 4.16.1.3 Length TolerancesRefer to Tables 5 and 6.16.1.4 Straightness ToleranceRefer to Table 7.16.1.5 Corner Radius for Rectangular Including SquareTubeRefer
49、to Table 8.16.1.6 Roundness, Squareness of Cut and Twist Tolerancesfor Rectangular and Square TubesRefer to titled sections.16.2 Length Tolerances for Tube in CoilsRefer to Table 3,Table 4, and Table 5 of this specification.17. General Requirements17.1 The following sections of Specification B251 are a partof this specification.17.1.1 Terminology, General,17.1.2 Material and Manufacture,17.1.3 Workmanship, Finish, and Appearance,17.1.4 Significance of Numerical Limits,17.1.5 Inspection,17.1.6 Rejection and Rehearing,17.1.7 Certificati
