1、Designation: B 42 02e1Standard Specification forSeamless Copper Pipe, Standard Sizes1This standard is issued under the fixed designation B 42; 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 p
2、arentheses indicates 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.e1NOTEReferenced Documents were editorially corrected in November 2003.1. Sc
3、ope*1.1 This specification2covers seamless copper pipe in allnominal or standard pipe sizes, both regular and extra-strong,suitable for use in plumbing, boiler feed lines, and for similarpurposes.31.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parent
4、heses are providedfor information purposes only.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:B 153 Test Method for Expansion (Pin Test) of Copper andCopper-All
5、oy Pipe and Tubing4B 170 Specification for Oxygen-Free Electrolytic CopperRefinery Shapes4B 601 Practice for Temper Designations for Copper andCopper AlloysWrought and Cast4E 8 Test Methods for Tension Testing of Metallic Materials5E 29 Practice for Using Significant Digits in Test Data toDetermine
6、Conformance with Specifications6E 53 Test Method for Determination of Copper in Unal-loyed Copper by Gravimetry7E 62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Method)7E 243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Copper and Copper-Alloy Tubes8E 25
7、5 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical Composition7E 478 Test Methods for Chemical Analysis of CopperAlloys7E 527 Practice for Numbering Metals and Alloys (UNS)93. Terminology3.1 Definitions:3.1.1 lengthsstraight pieces of the product.3.1.1.1 standardunifor
8、m lengths recommended in a Sim-plified Practice Recommendation or established as a Commer-cial Standard.3.1.2 tube, seamlessa tube produced with a continuousperiphery in all stages of the operations.3.1.2.1 pipea seamless tube conforming to the particulardimensions commercially known as Nominal or S
9、tandard PipeSizes.3.2 Definitions of Terms Specific to This Standard:3.2.1 capable ofas used in this specification, the test neednot be performed by the producer of the material. However,should subsequent testing by the purchaser establish that thematerial does not meet these requirements the materi
10、al shall besubject to rejection.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Type of copper, if required,4.1.2 Temper (see 6.1),4.1.3 Pipe size, regular or extra-strong, (see 10.2),4.1.4 Length (see 10.3),4.1.5 Total length of e
11、ach size,4.1.6 If material is required to meet ASME Boiler andPressure Vessel Code,4.1.7 Certification, if required (see 18.1),4.1.8 Mill test report, if required (see 20.1),1This specification is under the jurisdiction of ASTM Committee B05 on Copperand Copper Alloys and is the direct responsibilit
12、y of Subcommittee B05.04 on Pipeand Tube.Current edition approved Apr. 10, 2002. Published June 2002. Originallypublished as B 42 22 T. Last previous edition B 42 98.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SB-42 in Section II of that Code.3The UNS system fo
13、r copper and copper alloys (see Practice E 527) is a simpleexpansion of the former standard designation system accomplished by the additionof a prefix “C” and a suffix “00.” The suffix can be used to accommodatecomposition variations of the base alloy.4Annual Book of ASTM Standards, Vol 02.01.5Annua
14、l Book of ASTM Standards, Vol 03.01.6Annual Book of ASTM Standards, Vol 14.02.7Annual Book of ASTM Standards, Vol 03.05.8Annual Book of ASTM Standards, Vol 03.03.9Annual Book of ASTM Standards, Vol 01.01.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International,
15、 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.1.9 Hydrostatic test, if required, and4.1.10 Pneumatic test, if required.4.2 In addition, when material is purchased for agencies ofthe U.S. Government, it shall conform to the SupplementaryRequirements as defined
16、 herein when specified in the contractor purchase order.5. Chemical Composition5.1 The material shall conform to the following chemicalrequirements:Copper (incl silver), min, % 99.9Phosphorus, max, % 0.045.2 The pipe shall be produced from one of the followingcoppers, and unless otherwise specified,
17、 anyone of them ispermitted to be furnished:Copper UNS No.Previously UsedDesignationType of CopperC10200 OF Oxygen-free without residual deoxi-dantsC10300 Oxygen-free, extra-low phosphorusC10800 Oxygen-free, low phosphorusC12000 DLP Phosphorized, low residual phos-phorusC12200 DHP Phosphorized, high
18、 residual phos-phorus5.3 When the copper is specified, the material shall conformto the chemical requirements specified in Table 1.5.4 These specification limits do not preclude the possiblepresence of other elements. When required, limits for unnamedelements are to be established by agreement betwe
19、en manu-facturer or supplier and purchaser.5.4.1 The major element that is not analyzed shall bedetermined by difference between the sum of those elementsanalyzed and 100 %. By agreement between manufacturer andpurchaser, it is permitted to establish limits and requiredanalysis for elements not spec
20、ified.6. Temper6.1 All pipe shall normally be furnished in the O61 (an-nealed), H55 (light drawn), or H80 (hard drawn) temper, asprescribed in Practice B 601, and shall have the propertiesshown in Table 2.6.2 When pipe is required for bending, it shall be sospecified in the purchase order, and the p
21、ipe shall be furnishedin the temper agreed upon between the manufacturer orsupplier and the purchaser.7. Expansion Test7.1 Pipe ordered in the annealed (O) condition, selected fortest, shall withstand an expansion of 25 % of the outsidediameter when expanded in accordance with Test MethodB 153. The
22、expanded pipe shall show no cracking or rupturevisible to the unaided eye. Pipe ordered in the drawn (H)condition is not subject to this test.NOTE 1The term “unaided eye,” as used herein, permits the use ofcorrective spectacles necessary to obtain normal vision.7.2 As an alternative to the expansion
23、 test for pipe over 4 in.(102 mm) in diameter in the annealed condition, a section 4 in.in length shall be cut from the end of one of the lengths for aflattening test. This 4-in. specimen shall be flattened so that agage set at three times the wall thickness will pass over the pipefreely throughout
24、the flattened part. The pipe so tested shalldevelop no cracks or flaws visible to the unaided eye (Note 1)as a result of this test. In making the flattening test, theelements shall be slowly flattened by one stroke of the press.8. Microscopical Examination8.1 The pipe shall be made from copper that
25、is free ofcuprous oxide as determined by microscopical examination ata753 magnification. When Copper UNS No. C12200 issupplied, microscopical examination for cuprous oxide is notrequired.9. Nondestructive Testing9.1 The material shall be tested in the final size but ispermitted to be tested before t
26、he final anneal or heat treatment,when these thermal treatments are required, unless otherwiseagreed upon by the manufacturer or supplier and purchaser.9.2 Eddy-Current TestEach piece of material from18-in.up to and including 212-in. nominal outside diameter, or withinthe capabilities of the eddy-cu
27、rrent tester, shall be subjected toan eddy-current test. Testing shall follow the procedures ofPractice E 243, except for determination of “end effect.” Thematerial shall be passed through an eddy-current testing unitadjusted to provide information on the suitability of thematerial for the intended
28、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. Thenotch depth tolerance shall be 60.0005 in. (0.013 mm).Alternatively, when a manufacturer uses speed-insensitiveequipment that allows the selection of a maximum imbalance
29、signal, a maximum imbalance signal of 0.3 % is permitted tobe used.9.2.2 Material that does not actuate the signaling device ofthe eddy-current test shall be considered as conforming to theTABLE 1 Chemical RequirementsCopper UNS No. Copper (incl Silver), min, % Phosphorus, %C10200A99.95 .C10300 99.9
30、5B0.001 to 0.005C10800 99.95B0.005 to 0.012C12000 99.90 0.004 to 0.012C12200 99.9 0.015 to 0.040AOxygen in C10200 shall be 10 ppm max.BCopper + silver + phosphorus.TABLE 2 Tensile RequirementsTemper Designation Pipe SizeNominal orStandard, in.TensileStrength,min,ksiA(MPa)BYield Strength,Cmin,ksiA(MP
31、a)BStandard FormerO61 annealed all 30 (294) 9 (88)DH80 hard drawn18 2, incl 45 (310) 40 (280)H80 hard drawn over 2 38 (260) 32 (220)H55 light drawn 212, incl 36 (250) 30 (210)Aksi = 1000 psi.BSee Appendix X1.CAt 0.5 % extension under load.DLight-straightening operation is permitted.B4202e12requireme
32、nts of this test. Material with discontinuities indi-cated by the testing unit is permitted to be reexamined orretested, at the option of the manufacturer, to determinewhether the discontinuity is cause for rejection. Signals that arefound to have been caused by minor mechanical damage, soil,or mois
33、ture shall not be cause for rejection of the materialprovided the dimensions of the material are still withinprescribed limits and the material is suitable for its intendedapplication.9.3 Hydrostatic TestWhen specified, the material shallstand, without showing evidence of leakage, an internal hydro-
34、static pressure sufficient to subject the material to a fiber stressof 6000 psi (41 MPa), determined by the following equationfor thin hollow cylinders under tension. The material need notbe tested at a hydrostatic pressure of over 1000 psi (6.9 MPa)unless so specified.P 5 2St/D 2 0.8t! (1)where:P =
35、 hydrostatic pressure, psi (or MPa);t = wall thickness of the material, in. (or mm);D = outside diameter of the material in. (or mm); andS = allowable stress of the material, psi (or MPa).9.4 Pneumatic TestWhen specified, the material shall besubjected to an internal air pressure of 60 psi (415 kPa)
36、minimum for 5 s without showing evidence of leakage. The testmethod used shall permit easy visual detection of any leakage,such as by having the material under water or by the pressure-differential method. Any evidence of leakage shall be cause forrejection.10. Dimensions and Permissible Variations1
37、0.1 For the purpose of determining conformance with thedimensional requirements prescribed in this specification, anymeasured value outside the limiting values for any dimensionsshall be sufficient cause for rejection.10.2 Standard Dimensions, Wall Thickness, and DiameterTolerancesThe standard dimen
38、sions, wall thickness, anddiameter tolerances shall be in accordance with Table 3.10.3 Length and Length TolerancesThe standard length ofcopper pipe is 12 ft (3.66 m) with a tolerance of 612 in. (13mm).10.4 Roundness:10.4.1 For drawn unannealed pipe in straight lengths, theroundness tolerances shall
39、 be as follows:t/d (ratio ofWall Thickness toOutside Diameter)Roundness Tolerances asPercent of Outside Diameter(Expressed to the Nearest0.001 in. (0.025 mm)0.01 to 0.03, incl 1.5Over 0.03 to 0.05, incl 1.0Over 0.05 to 0.10, incl 0.8Over 0.10 0.710.4.2 Compliance with the roundness tolerance shall b
40、edetermined by taking measurements on the outside diameteronly, irrespective of the manner in which the pipe dimensionsare specified.10.4.3 The deviation from roundness is measured as thedifference between major and minor diameters as determined atany one cross section of the tube.10.5 Squareness of
41、 CutThe departure from squareness ofthe end of any pipe shall not exceed the following:Outside Diameter,in. (mm) ToleranceUp to58 (15.9), incl 0.010 in. (0.25 mm)Over58 (15.9) 0.016 in./in. (0.016 mm/mm) of diameter10.6 Straightness ToleranceFor pipe of H (drawn) tem-pers of Nominal Pipe Sizes from1
42、4 to 12 in. inclusive, themaximum curvature (depth of arc) shall not exceed12 in. (13mm) in any 10-ft (3048-mm) portion of the total length. For Htemper pipe of other sizes, and for the O611 (annealed) temper,no numerical values are established, however, the straightnessof the pipe shall be suitable
43、 for the intended application.11. Workmanship, Finish, and Appearance11.1 The material shall be free of defects of a nature thatinterfere with normal commercial applications. It shall be wellcleaned and free of dirt.12. Sampling12.1 SamplingThe lot size, portion size, and selection ofsample pieces s
44、hall be as follows:12.1.1 Lot SizeThe lot size shall be as follows:Pipe Size, in. Lot Weight, lb (kg)Up to 112 , incl 5 000 (2270) or fraction thereofOver 112 to 4, incl 10 000 (4550) or fraction thereofOver 4 40 000 (18 100) or fraction thereof12.1.2 Portion SizeSample pieces shall be taken for tes
45、tpurposes from each lot according to the following schedule:Number of Pieces in Lot Number of Sample Pieces to be TakenA1to50 151 to 200 2201 to 1500 3Over 1500 0.2 % of total number of pieces in the lot, butnot to exceed ten sample piecesAEach sample piece shall be taken from a separate tube.13. Nu
46、mber of Tests and Retests13.1 Chemical AnalysisSamples for chemical analysisshall be taken in accordance with Practice E 255. Drillings,millings, and so forth shall be taken in approximately equalweight from each of the sample pieces selected in accordancewith 12.1.2 and combined into one composite
47、sample. Theminimum weight of the composite sample that is to be dividedinto three equal parts shall be 150 g.13.1.1 Instead of sampling in accordance with PracticeE 255, the manufacturer shall have the option of determiningconformance to chemical composition as follows: Conform-ance shall be determi
48、ned by the manufacturer by analyzingsamples taken at the time the castings are poured or samplestaken from the semifinished product. If the manufacturerdetermines the chemical composition of the material during theB4202e13course of manufacture, he shall not be required to sample andanalyze the finis
49、hed product. The number of samples taken fordetermination of chemical composition shall be as follows:13.1.1.1 When samples are taken at the time the castings arepoured, at least one sample shall be taken for each group ofcastings poured simultaneously from the same source ofmolten metal.13.1.1.2 When samples are taken from the semifinishedproduct, a sample shall be taken to represent each 10 000 lb(4550 kg) or fraction thereof, except that not more than onesample shall be required per piece.13.1.1.3 Because of the discontinuous nature of the process
