1、Designation: B 75 02Standard Specification forSeamless Copper Tube1This standard is issued under the fixed designation B 75; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses indicat
2、es the year of last reapproval. A superscriptepsilon (e) 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, rectangular,
3、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-free without
4、 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 which are gi
5、ven in SI units.1.3 This specification is the companion to SI SpecificationB 75M; 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 standard
6、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 Documents2.1 ASTM S
7、tandards:B 75M Specification for Seamless Copper Tube Metric3B 153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and Tubing3B 170 Specification for Oxygen-Free Electrolytic CopperRefinery Shapes3B 193 Test Method for Resistivity of Electrical ConductorMaterials4B 251 Specificat
8、ion for General Requirements for WroughtSeamless Copper and Copper-Alloy Tube3B 577 Test Methods for Detection of Cuprous Oxide (Hy-drogen Embrittlement Susceptibility) in Copper3B 601 Classification for Temper Designations for Copperand Copper AlloysWrought and Cast3E 3 Guide for Preparation of Met
9、allographic Specimens5E 8 Test Methods for Tension Testing of Metallic Materials5E 18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic Materials5E 53 Test Methods for Determination of Copper in Unal-loyed Copper by Gravimetry6E 62 Test Methods for Chemical Analysis of
10、Copper andCopper Alloys (Photometric Methods)6E 112 Test Methods for Determining the Average GrainSize5E 243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Copper and Copper-Alloy Tubes7E 255 Practice for Sampling Copper and Copper Alloys forDetermination of Chemical Composition6E 527 P
11、ractice for Numbering Metals and Alloys (UNS)83. 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 theserequ
12、irements, the material 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.4. Ordering Information4.1 Include the following information in orders for prod-ucts.1This specification is under the
13、jurisdiction of ASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct. 10, 2002. Published November 2002. Originallypublished as B 75 28T. Last previous edition B 75 99.2For ASME Boiler and Pressure Vessel C
14、ode applications refer to relatedSpecification SB-75 in Section II of that Code.3Annual Book of ASTM Standards, Vol 02.01.4Annual Book of ASTM Standards, Vol 02.03.5Annual Book of ASTM Standards, Vol 03.01.6Annual Book of ASTM Standards, Vol 03.06.7Annual Book of ASTM Standards, Vol 03.03.8Annual Bo
15、ok of ASTM Standards, Vol 01.01.1*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.4.1.1 ASTM designation and year of issue (for example,B 75 99),4.1.2 Copper UNS No. (fo
16、r 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 footage; each size and type,4.1.7 Total weight,4.1.8 When product is purchased for ASM
17、E 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 required:4.2.1 Electrical mass resistivity test,4.2.2 Hydrogen embrittlement test
18、,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 UNS9No. C10100, C10200, C10300,C10800, C12000, or C12200, and shall be of such soundness asto be suitable
19、 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 shall becold drawn to the finished size and wall thickness. Whencold-drawn tempe
20、r 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 material shall conform to the requirements in Table1 for the specified Copper UNS No. d
21、esignation.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 be established and analysis required forunnamed elements.7. Temper7.1 The requirem
22、ents and size availability of tube in thecold-drawn tempers H55, H58, and H80, as defined in Classi-fication B 601, are specified in Table 2.7.1.1 Rectangular, including square, tube shall normally besupplied only in H58 temper. When requested by the manu-facturer or supplier, and upon agreement wit
23、h 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 and size availability of tube in theannealed tempers O50 and O60, as defined in
24、 ClassificationB 601, 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 basedon temper.8. Grain Size Requirements8.1 Tube in the annealed temper shall
25、 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 Copper UNS No. C10100, C10200,C10300, or C12000 shall have an electrical mass re
26、sistivity,Vg/m2, not to exceed the following limit for the specifiedcopper and temper when tested in accordance with TestMethod B 193:TemperCopper UNS No.C10100 C10200 C10300 C12000O60, O50 0.151 76 0.153 28 0.156 14 0.170 31H55, H58, H80 0.156 14 0.157 37 0.159 40 0.174 18NOTE 3Refer to Appendix X2
27、 for the International Annealed CopperStandard (IACS) electrical conductivity equivalents.10. Mechanical Property Requirements10.1 Tensile and Yield Strength:10.1.1 The tube shall conform to the requirements of Table2 for the specified temper and wall thickness.10.1.2 For any combination of diameter
28、 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 and wall thickness.10.2.1.1 The Rockwell Hardness values for tube in the H55,9Refer to Practice E 527 for explanat
29、ion of unified numbering system (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
30、.0.0150.0400.150.50ARefer to Table 1, Chemical Requirements, Grade 1, of Specification B 170 for impurity limits for Copper UNS No. C10100.BRefer to Table 1, Chemical Requirements, Grade 2, of Specification B 170 for impurity limits for Copper UNS No. C10200.CCopper (including silver).B75022H58, and
31、 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 distancesbetween parallel surfaces of316 in. and over.10.2.1.2 The Rockwell Hardness values
32、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 having inside major dis-tances between parallel surfaces of316 in. and over.10.3 St
33、raighteningIt 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, annealed tubes shall be capable ofwithstanding an expansion of the outside diameter of 40
34、% 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, and C12000 shall be essentially free of cuprous oxideas determined by Procedure A of
35、Test Methods B 577.13. 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 TestMethods B 577.14. Purchases for U.S. Government Agencies14.1 When the contract o
36、r 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 B 251.15. Nondestructive Test15.1 The tubes shall be tested in the drawn tempers or asdrawn before the final
37、-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.15.2.2 When tested in accordance with Practice E 243,tubes which do not actuate
38、the signaling device of the testingunit shall be considered as conforming to the requirements ofthe test.15.3 Hydrostatic Pressure TestWhen specified in thecontract or purchase order, each tube shall be capable ofwithstanding an internal hydrostatic pressure sufficient toproduce a fiber stress of 60
39、00 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 internal air pr
40、essure 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 SpecificationB 251:TABLE 2 Mecha
41、nical Property Requirements of Drawn-Temper and Annealed-Temper TubeTemper DesignationOutside Diameter,or MajorDistance BetweenOutside ParallelSurfaces, in.Wall Thickness, in.Rockwell HardnessAverageGrainSize, mmTensile Strength,ksiAYieldStrength,Bmin.,ksiAStandard Former Scale HardnessH55 light-dra
42、wnCall 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 max 0.040 min 30 min 9FO50 light anneal all 0.015 to 0.035 15TE65
43、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 hardness values shall apply only to tubes having a wall thickness
44、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 made on the inside surfaceof the tube. When suitable equipment is n
45、ot 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 thickness of 0.015 in. or over, to round tubes having an inside diame
46、ter 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 inside surface of the tube. When suitable equipment is not avail
47、able 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.B7502316.1.1 Wall Thickness TolerancesRefer to Tables 1 and 2.16.1.2 Tolerances for Diameter or Di
48、stance 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 to Table 8.16.1.6 Roundness, Squareness of Cut and Twist Tolerancesfor Rectangular and
49、 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 B 251 are apart of 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 Certification,17.1.8 Mill Test Reports,17.1.9 Packaging and Package Marking, and17.1.10 Supplementa
