1、Designation: B42 15B42 15aStandard Specification forSeamless Copper Pipe, Standard Sizes1This standard is issued under the fixed designation B42; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.Anumber in
2、parentheses 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 U.S. Department of Defense.1. Scope*1.1 This specification2 establishes the requirements for seamles
3、s copper pipe in all nominal or standard pipe sizes, both regularand extra-strong, suitable for use in plumbing, boiler feed lines, and for similar purposes.31.2 UnitsThe values stated in inch-pound units are to be regarded as the standard. The values given in parentheses aremathematical conversions
4、 to SI units, which are provided for information only and are not considered standard.1.3 The following safety hazard caveat pertains only to the test methods described in this specification.1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use.
5、It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:4B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tub
6、ingB170 Specification for Oxygen-Free Electrolytic CopperRefinery ShapesB577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in CopperB601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB846 Terminology for Copper and Copper All
7、oysB968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and TubeE8/E8M Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE53 Test Method for Determination of Copper in Unalloyed Co
8、pper by GravimetryE62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)5E243 Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemic
9、al CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)3. Terminology3.1 Definitions:3.1.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.4. Ordering Information
10、4.1 Include the following specified choices when placing orders for product under this specification as applicable:4.1.1 ASTM designation and year of issue,1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommitte
11、e B05.04 on Pipe andTube.Current edition approved May 15, 2015July 1, 2015. Published July 2015. Originally approved in 1922. Last previous edition approved in 20102015 as B42 10.B42 15.DOI: 10.1520/B0042-15.10.1520/B0042-15A.2 For ASME Boiler and Pressure Vessel Code applications, see related Speci
12、fication SB-42 in Section II of that Code.3 The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of aprefix “C” and a suffix “00.” The suffix can be used to accommodate composition variations of t
13、he base alloy.4 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.5 The last approved version of this historical
14、standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM
15、recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Bo
16、x C700, West Conshohocken, PA 19428-2959. United States14.1.2 Copper UNS No. designation, if required, (see Chemical Composition section),4.1.3 Temper (see Temper section and Table 2),4.1.4 Pipe size, regular or extra-strong, (see Dimensions section and Table 3),4.1.5 Length (see 10.3) if different
17、than standard,4.1.6 Total length of each size,4.2 The following options are available, but may not be included unless specified at the time of placing of the order whenrequired:4.2.1 If product is ordered for ASME Boiler and Pressure Vessel Code Application (See Certification Section).4.2.2 If produ
18、ct is required for bending (see 6.2) and the temper to be furnished,4.2.3 Certification, if required (see Certification section),4.2.4 Test report, if required (see Test Report section),4.2.5 Hydrostatic test, if required (see Nondestructive Testing section),4.2.5.1 If hydrostatic test pressure abov
19、e 1000 psi is required,4.2.6 Pneumatic test, if required (see Nondestructive Testing section).4.2.7 If product is purchased for agencies of the U.S. Government (see the Other Requirements section of this specification, and4.2.8 If specification number is required to be shown on each shipping unit (s
20、ee Packaging and Package Marking section)5. Chemical Composition5.1 The material shall conform to the following chemical requirements:Copper (incl silver), min, % 99.9Phosphorus, max, % 0.045.2 The pipe shall be produced from one of the following coppers, and unless otherwise specified, anyone of th
21、em is permittedto be furnished:Copper UNS No. Previously UsedDesignation Type of CopperC10200 OF Oxygen-free without residualdeoxidantsC10300 Oxygen-free, extra-low phosphorusC10800 Oxygen-free, low phosphorusC12000 DLP Phosphorized, low residualphosphorusC12200 DHP Phosphorized, high residualphosph
22、orus5.3 When the copper UNS No. designation is specified, the material shall conform to the chemical requirements specified inTable 1.5.4 These composition limits do not preclude the presence of other elements. By agreement between manufacturer or supplierand purchaser, limits may be established and
23、 analysis required for unnamed elements.6. Temper6.1 The standard tempers as prescribed in Classification B601, for products described in this specification are:6.1.1 Annealed O616.1.2 Light Drawn H556.1.3 Hard Drawn H806.2 When pipe is required for bending, it shall be so specified in the purchase
24、order, and the pipe shall be furnished in the temperagreed upon between the manufacturer or supplier and the purchaser.7. Mechanical Property Requirements7.1 Tensile Strength Requirements:TABLE 1 Chemical RequirementsCopper UNS No. Copper (incl Silver), min, % Phosphorus, %C10200A 99.95 .C10300 99.9
25、5B 0.001 to 0.005C10800 99.95B 0.005 to 0.012C12000 99.90 0.004 to 0.012C12200 99.9 0.015 to 0.040A Oxygen in C10200 shall be 10 ppm max.B Copper + silver + phosphorus.B42 15a27.1.1 Product furnished under this specification shall conform to the tensile requirements prescribed in Table 2, when teste
26、din accordance with Test Methods E8/E8M.8. Performance Requirements8.1 Expansion Test:8.1.1 Pipe ordered in the annealed (O61) temper, selected for test, shall withstand an expansion of 25 % of the outside diameterwhen expanded in accordance with Test Method B153. The expanded pipe shall show no cra
27、cking or rupture visible to the unaidedeye. Pipe ordered in the drawn tempers H55 or H80 are not subject to this test.NOTE 1The term “unaided eye,” as used herein, permits the use of corrective spectacles necessary to obtain normal vision.8.2 Flattening Test:8.2.1 As an alternative to the expansion
28、test for pipe over 4 in. (102 mm) in diameter in the annealed temper, a flattening testin accordance with Test Method B968/B968M shall be performed.8.3 Microscopical Examination:8.3.1 The pipe shall be made from copper that is free of cuprous oxide as determined by microscopical examination inaccord
29、ance with Method A of Test Methods B577 at a 75 magnification.8.3.2 When Copper UNS No. C12200 is supplied, microscopical examination for cuprous oxide is not required.9. Other Requirements9.1 Nondestructive Testing:9.1.1 The material shall be tested in the final size but is permitted to be tested b
30、efore the final anneal or heat treatment, whenthese thermal treatments are required, unless otherwise agreed upon by the manufacturer or supplier and purchaser.9.2 Eddy-Current TestEach piece of material from 18-in. up to and including 212-in. nominal outside diameter, or within thecapabilities of t
31、he eddy-current tester, shall be subjected to an eddy-current test. Testing shall follow the procedures of PracticeE243, except for determination of “end effect.” The material shall be passed through an eddy-current testing unit adjusted toprovide information on the suitability of the material for t
32、he intended application.9.2.1 Notch-depth standards rounded to the nearest 0.001 in. (0.025 mm) shall be 10 % of the nominal wall thickness. The notchdepth tolerance shall be 60.0005 in. (0.013 mm).Alternatively, when a manufacturer uses speed-insensitive equipment that allowsthe selection of a maxi
33、mum imbalance signal, a maximum imbalance signal of 0.3 % is permitted to be used.9.2.2 Material that does not actuate the signaling device of the eddy-current test shall be considered as conforming to therequirements of this test. Material with discontinuities indicated by the testing unit is permi
34、tted to be reexamined or retested, atthe option of the manufacturer, to determine whether the discontinuity is cause for rejection. Signals that are found to have beencaused by minor mechanical damage, soil, or moisture shall not be cause for rejection of the material provided the dimensions ofthe m
35、aterial are still within prescribed limits and the material is suitable for its intended application.9.3 Hydrostatic TestWhen specified, the material shall stand, without showing evidence of leakage, an internal hydrostaticpressure sufficient to subject the material to a fiber stress of 6000 psi (41
36、 MPa), determined by the following equation for thinhollow cylinders under tension. The material need not be tested at a hydrostatic pressure of over 1000 psi (6.9 MPa) unless sospecified.P 52St/D 20.8t! (1)where:P = hydrostatic pressure, psi (or MPa);TABLE 2 Tensile RequirementsTemper Designation P
37、ipe SizeNominal orStandard, in.TensileStrength,min,ksiA (MPa)BYield Strength,Cmin,min.ksiA (MPa)BCode NameCode NameO61 annealed all 30 (294) 9 (88)DO61 annealed all 30 (205) 9 (60)DH80 hard drawn 18 2, incl 45 (310) 40 (280)H80 hard drawn 18 2, incl 45 (310) 40 (275)H80 hard drawn over 2 38 (260) 32
38、 (220)H55 light drawn 212, incl 36 (250) 30 (210)H55 light drawn 212, incl 36 (250) 30 (205)A ksi = 1000 psi.B See Appendix X1.C At 0.5 % extension under load.D Light-straightening operation is permitted.B42 15a3t = wall thickness of the material, in. (or mm);D = outside diameter of the material in.
39、 (or mm); andS = allowable stress of the material, psi (or MPa).9.4 Pneumatic TestWhen specified, the material shall be subjected to an internal air pressure of 60 psi (415 kPa) minimumfor 5 s without showing evidence of leakage. The test method used shall permit easy visual detection of any leakage
40、 such as byhaving the material under water or by the pressure-differential method. Any evidence of leakage shall be cause for rejection.9.5 Purchases for U.S. GovernmentIf the product is purchased for agencies of the U.S. Government, when specified in thecontract or purchase order, the product furn
41、ished shall conform to the conditions specified in the Supplementary Requirements ofthis specification.10. Dimensions and Permissible Variations10.1 For the purpose of determining conformance with the dimensional requirements prescribed in this specification, anymeasured value outside the limiting v
42、alues for any dimensions shall be sufficient cause for rejection.10.2 Standard Dimensions, Wall Thickness, and Diameter TolerancesThe standard dimensions, wall thickness, and diametertolerances shall be in accordance with Table 3.10.3 Length and Length TolerancesThe standard length of copper pipe is
43、 12 ft (3.66 m) with a tolerance of 612 in. (13 mm).10.4 Roundness:10.4.1 For pipe of H (drawn) tempers in straight lengths, the roundness tolerances shall be as follows:TABLE 3 Standard Dimensions, Weights, and TolerancesNOTE 1All tolerances plus and minus except as otherwise indicated.Nominal orSt
44、andardPipe Size,in.OutsideDiameter,in. (mm)Average OutsideDiameterTolerance,A in.(mm) All MinusWallThickness,in. (mm)Tolerance,Bin. (mm)Theoretical Weight,lb/ft (kg/m)Regular18 0.405 (10.3) 0.004 (0.10) 0.062 (1.57) 0.004 (0.10) 0.259 (0.385)14 0.540 (13.7) 0.004 (0.10) 0.082 (2.08) 0.005 (0.13) 0.4
45、57 (0.680)38 0.675 (17.1) 0.005 (0.13) 0.090 (2.29) 0.005 (0.13) 0.641 (0.954)12 0.840 (21.3) 0.005 (0.13) 0.107 (2.72) 0.006 (0.15) 0.955 (1.42)34 1.050 (26.7) 0.006 (0.15) 0.114 (2.90) 0.006 (0.15) 1.30 (1.93)1 1.315 (33.4) 0.006 (0.15) 0.126 (3.20) 0.007 (0.18) 1.82 (2.71)114 1.660 (42.2) 0.006 (
46、0.15) 0.146 (3.71) 0.008 (0.20) 2.69 (4.00)112 1.900 (48.3) 0.006 (0.15) 0.150 (3.81) 0.008 (0.20) 3.20 (4.76)2 2.375 (60.3) 0.008 (0.20) 0.156 (3.96) 0.009 (0.23) 4.22 (6.28)212 2.875 (73.0) 0.008 (0.20) 0.187 (4.75) 0.010 (0.25) 6.12 (9.11)3 3.500 (88.9) 0.010 (0.25) 0.219 (5.56) 0.012 (0.30) 8.76
47、 (13.0)312 4.000 (102) 0.010 (0.25) 0.250 (6.35) 0.013 (0.33) 11.4 (17.0)4 4.500 (114) 0.012 (0.30) 0.250 (6.35) 0.014 (0.36) 12.9 (19.2)5 5.562 (141) 0.014 (0.36) 0.250 (6.35) 0.014 (0.36) 16.2 (24.1)6 6.625 (168) 0.016 (0.41) 0.250 (6.35) 0.014 (0.36) 19.4 (28.9)8 8.625 (219) 0.020 (0.51) 0.312 (7
48、92) 0.022 (0.56) 31.6 (47.0)10 10.750 (273) 0.022 (0.56) 0.365 (9.27) 0.030 (0.76) 46.2 (68.7)12 12.750 (324) 0.024 (0.61) 0.375 (9.52) 0.030 (0.76) 56.5 (84.1)Extra Strong18 0.405 (10.3) 0.004 (0.10) 0.100 (2.54) 0.006 (0.15) 0.371 (0.552)14 0.540 (13.7) 0.004 (0.10) 0.123 (3.12) 0.007 (0.18) 0.62
49、5 (0.930)38 0.675 (17.1) 0.005 (0.13) 0.127 (3.23) 0.007 (0.18) 0.847 (1.26)12 0.840 (21.3) 0.005 (0.13) 0.149 (3.78) 0.008 (0.20) 1.25 (1.86)34 1.050 (26.7) 0.006 (0.15) 0.157 (3.99) 0.009 (0.23) 1.71 (2.54)1 1.315 (33.4) 0.006 (0.15) 0.182 (4.62) 0.010 (0.25) 2.51 (3.73)114 1.660 (42.2) 0.006 (0.15) 0.194 (4.93) 0.010 (0.25) 3.46 (5.15)112 1.900 (48.3) 0.006 (0.15) 0.203 (5.16) 0.011 (0.28) 4.19 (6.23)2 2.375 (60.3) 0.008 (0.20) 0.221 (5.61) 0.012 (0.30) 5.80 (8.63)212 2.875 (73.0) 0.008 (0.20) 0.280 (7.11) 0.015 (0.38) 8.85 (13.2)3 3.5
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