1、Designation: B75/B75M 11Standard Specification forSeamless Copper Tube1This standard is issued under the fixed designation B75/B75M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses
2、 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 specification2establishes the requirements forseamless round, rectang
3、ular, 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 w
4、ithout residual deoxidantsC10300 Oxygen-free, extra low phosphorusC10800 Oxygen-free, low phosphorusC12000 Phosphorus deoxidized, low residual phosphorusC12200 Phosphorus deoxidized, high residual phosphorus1.2 UnitsThe values stated in either inch-pound units orSI units are to be regarded separatel
5、y as standard. Within thetext, SI units are shown in brackets. The values stated in eachsystem may not be exact equivalents; therefore, each systemshall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with thestandard.1.3 The following hazard st
6、atement pertains only to the testmethods described in Sections 20.5.2.1, 21.2.9, and 21.2.10 ofthis specification: This 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 safe
7、ty and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3B153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubingB170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB193 Test
8、 Method for Resistivity of Electrical ConductorMaterialsB251 Specification for General Requirements for WroughtSeamless Copper and Copper-Alloy TubeB251M Specification for General Requirements forWrought Seamless Copper and Copper-Alloy Tube (Met-ric)B577 Test Methods for Detection of Cuprous Oxide
9、(Hy-drogen Embrittlement Susceptibility) in CopperB601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysE3 Guide for Preparation of Metallographic SpecimensE8/E8M Test Methods for Tension Testing of MetallicMaterialsE18 Te
10、st 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)4E112 Test Methods for Determining Average Grain SizeE243 Practice for Electromagn
11、etic (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 theUnified Numbering System (UNS)3. General Requirements3.1 The following sections of Spec
12、ification B251 or B251Mare a part of this specification.3.1.1 Terminology, General,3.1.2 Material and Manufacture,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Significance of Numerical Limits,3.1.5 Inspection,1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper A
13、lloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct. 15, 2011. Published November 2011. Originallypublished as B75 28T. Last previous edition approved in 2010 as B75 02 (2010).DOI: 10.1520/B0075_B0075M-11.2For ASME Boiler and Pressure Vessel Cod
14、e applications refer to relatedSpecification SB-75 in Section II of that Code.3For 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 on
15、the ASTM website.4Withdrawn. The last approved version of this historical standard 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.3.1.6 R
16、ejection and Rehearing,3.1.7 Certification,3.1.8 Mill Test Reports,3.1.9 Packaging and Package Marking, and3.1.10 Supplementary Requirements3.2 In addition, when a section with an identical title tothose referenced in section 3.1 appears in this specification, andis in conflict with the section appe
17、aring in Specification B251or B251M, the section in this specification shall prevail.4. Terminology4.1 DefinitionsFor definitions of terms related to copperand copper alloys, refer to Terminology B846.5. Ordering Information5.1 Include the following information in orders for prod-ucts.5.1.1 ASTM des
18、ignation and year of issue (for example,B75 02),5.1.2 Copper UNS No. (for example, C10100),5.1.3 Temper (Section 8),5.1.4 Dimensions; diameter or distance between parallelsurfaces, and wall thickness (Section 17),5.1.5 How furnished; coils or straight lengths,5.1.6 Number of pieces or footage; each
19、size and type,5.1.7 Total weight,5.2 The following options are available and shall be speci-fied at the time of placing the order, when required:5.2.1 Electrical mass resistivity test,5.2.2 Hydrogen embrittlement test,5.2.3 Hydrostatic test for pressures less than or equal to1000 psi (21.2.9),5.2.4
20、Hydrostatic test for pressures over 1000 psi (21.2.9.1),5.2.5 Pneumatic test,5.2.6 Certification, and5.2.7 Test report.5.2.8 Expansion Test5.2.9 When product is purchased for ASME Boiler andPressure Vessel Code application, and5.2.10 When product is purchased for agencies of the U.S.Government.6. Ma
21、terial and Manufacture6.1 MaterialThe material of manufacture shall be billets,bars, or tube of Copper UNS5No. C10100, C10200, C10300,C10800, C12000, or C12200, and shall be of such soundness asto be suitable for processing into the tubular products de-scribed.6.2 ManufactureThe tube shall be manufa
22、ctured 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 temper is required, the final drawing operationshall be such as to meet the specified temper. Whe
23、n annealedtemper is required, the tube shall be annealed subsequent to thefinal cold draw.7. Chemical Composition7.1 The material shall conform to the requirements in Table1 for the specified Copper UNS No. designation.7.1.1 These specification limits do not preclude the presenceof other elements. W
24、hen 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.8. Temper8.1 The requirements and size availability of tube in thecold-drawn tempers H55, H58, and H80, as defined in
25、 Classi-fication B601, are specified in Table 2 or Table 3.8.1.1 Rectangular, including square, tube shall normally besupplied only in H58 temper. When requested by the manu-facturer or supplier, and upon agreement with the purchaser,tube shall be supplied in H55 or H58 temper.8.1.1.1 For any combin
26、ation of diameter and wall thicknessnot listed under H80 temper, the requirements specified forH58 temper shall apply.8.2 The requirements and size availability of tube in theannealed tempers O50 and O60, as defined in ClassificationB601, are specified in Table 2 or Table 3.NOTE 1The purchaser shall
27、 confer with the manufacturer or supplierfor the availability of product in a specific temper.NOTE 2Refer to Appendix X1 for recommended applications basedon temper.9. Grain Size Requirements9.1 Tube in the annealed temper shall conform to the grainsize specified in Table 2 or Table 3.10. Physical P
28、roperty Requirements10.1 Electrical ResistivityWhen specified in the contractor purchase order, tube ordered for electrical conductor appli-cation produced from Copper UNS No. C10100, C10200,5Refer to Practice E527 for explanation of unified numbering system (UNS).TABLE 1 Chemical RequirementsElemen
29、tComposition, %Copper UNS No.C10100AC10200BC10300 C10800 C12000 C12200CopperC, min 99.99 99.95 . . 99.90 99.9CopperC+phosphorus, min. . 99.95 99.95 . .Phosphorus . . 0.0010.005 0.0050.012 0.0040.012 0.0150.040ARefer to Table 1, Chemical Requirements, Grade 1, of Specification B170 for impurity limit
30、s 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/B75M 112C10300, or C12000 shall have an electrical mass resistivity,Vg/m2, not to exceed the following limit for the speci
31、fiedcopper 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 31TemperCopper UNS No.C10100 C10200 C10300 C12000H55, H58, H80 0.156 14 0.157 37 0.159 40 0.174 18NOTE 3Refer to Appendix X2 for the Internati
32、onal Annealed CopperStandard (IACS) electrical conductivity equivalents.11. Mechanical Property Requirements11.1 Tensile and Yield Strength Requirements:TABLE 2 Mechanical Property Requirements of Drawn-Temper and Annealed-Temper Tube (inch-pound values)Temper DesignationOutside Diameter,or MajorDis
33、tance BetweenOutside ParallelSurfaces, in.WallThickness, in.Rockwell HardnessAverageGrainSize, mmTensile Strength,ksiAYieldStrength,Bmin.,ksiACode Name 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 0.25
34、0, incl 30TD55 min 45 min 40O60 soft anneal all 0.015 to 0.035 15TE60 max 0.040 min 30 min 9F,G0.035 and over FE50 max 0.040 min 30 min 9F,GO50 light anneal all 0.015 to 0.035 15TE65 max 0.040 max 30 min 9F,G0.035 and over FE55 max 0.040 max 30 min 9F,GAksi = 1000 psi.BYield strength to be determine
35、d 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 of 0.020 in. or over, to round tubes having an inside diameter of516 in. or over, and torectangular including squ
36、are 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 not available for determining the specified Rockwell hardness, other Rockwell scales and values shall be specified
37、 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 diameter of516 in. or over, and torectangular including square tubes having an inside major distance between parallel
38、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 available for determining the specified Rockwell hardness, other Rockwellscales and values shall be specified subject
39、to agreement between purchaser and supplier.FLight-straightening operation is acceptable.GAlternative Tensile and Yield values to those listed in Table 2 are acceptable upon agreement between the purchaser and supplier.TABLE 3 Mechanical Property Requirements of Drawn-Temper and Annealed-Temper Tube
40、 (SI Values)Temper DesignationOutsideDiameter,or MajorDistanceBetweenOutside ParallelSurfaces, mmWall Thickness, mmRockwell HardnessAverageGrainSize, mmTensileStrength,AMPaYieldStrength,Amin,MPaStandard Former Scale HardnessH55 light-drawnBall all 30TC30 to 60 250325 205H58 drawn (generalpurpose)all
41、 all 30TC30 min 250 min 205H80 hard-drawnBup to 102 0.508 to 6.35, incl 30TC55 min 310 min 275O60 soft anneal all 0.381 to 0.889 15TD60 max 0.040 min 205 min 62E,F0.889 and over FD50 max 0.040 min 205 min 62E,FO50 light anneal all 0.381 to 0.889 15TD65 max 0.040 max 205 min 62E,F0.889 and over FD55
42、max 0.040 max 205 min 62E,FAYield strength to be determined at 0.5 % extension under load.BLight-drawn and hard-drawn tempers are normally available in round tubes only.CRockwell hardness values shall apply only to tubes having a wall thickness of 0.508 mm or over, to round tubes having an inside di
43、ameter of 8.0 mm or over, and torectangular including square tubes having an inside major distance between parallel surfaces of 5.0 mm or over. Rockwell hardness tests shall be made on the insidesurface of the tube. When suitable equipment is not available for determining the specified Rockwell hard
44、ness, other Rockwell scales and values shall be specified subjectto agreement between purchaser and supplier.DRockwell hardness values shall apply only to tubes having a wall thickness of 0.40 mm or over, to round tubes having an inside diameter of 8.0 or over, and torectangular including square tub
45、es having an inside major distance between parallel surfaces of 5.0 mm 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 available for determining the specified Rockwell hardness, other R
46、ockwellscales and values shall be specified subject to agreement between purchaser and supplier.ELight-straightening operation shall be permitted.FAlternative Tensile and Yield values to those listed in Table 3 are acceptable upon agreement between the purchaser and supplier.B75/B75M 11311.1.1 The t
47、ube shall conform to the requirements of Table2 or Table 3 for the specified temper and wall thickness.11.1.2 For any combination of diameter and wall thicknessnot listed under H80, the requirements for H58 shall apply.11.2 Rockwell Hardness Requirements:11.2.1 The tube shall conform to the requirem
48、ents of Table2 or Table 3 for the specified temper and wall thickness.11.2.1.1 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. 0.508 mmand over,(b) Round tubes having an inside diameter of516 in. 8.
49、0mm and over,(c) Rectangular and square tubes having major distancesbetween parallel surfaces of316 in. 5 mm and over.11.2.1.2 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. 0.40 mm andover;(b) Round tubes having an inside diameter of516 in. 8 mmand over;(c) Rectangular and square tubes having inside major dis-tances between parallel surfaces of316 in. 5 mm and over.11.3 StraighteningIt shall not be prohibited to use lightstraightening for tube
