1、Designation: B 43 98 (Reapproved 2004)Standard Specification forSeamless Red Brass Pipe, Standard Sizes1This standard is issued under the fixed designation B 43; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revi
2、sion. A number in parentheses 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.1. Scope*1.1 This specification2covers seamless red brass
3、 (CopperAlloy UNS No. C23000)3pipe in all nominal pipe sizes, bothregular and extra-strong. In the annealed temper (O61), thepipe is suitable for use in plumbing, boiler feed lines, and forsimilar purposes. In the drawn general purpose temper (H58),the pipe is suitable for architectural applications
4、, such as guardrailings and stair hand railings.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are providedfor information purposes only.1.3 The following hazard caveat pertains only to the testmethod portion, Section 9, of this specifica
5、tion. This standarddoes not purport to address all of the safety concerns, if any,associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.1.4 WarningMercury
6、 is a definite health hazard in useand disposal. (See 9.1.)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:4B 153 Test Method for Expansion (Pin Test) of Copper a
7、ndCopper-Alloy Pipe and TubingB 154 Test Method for Mercurous Nitrate Test for Copperand Copper AlloysB 601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastE 8 Test Methods of Tension Testing of Metallic MaterialsE 29 Practice for Using Significant Digits in Test Da
8、ta toDetermine Conformance with SpecificationsE 53 Test Methods for Determination of Copper in Unal-loyed Coppers by GravimetryE 62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E 112 Test Methods for Determining Average Grain SizeE 243 Practice for Electromagnet
9、ic (Eddy Current) Exami-nation of Copper and Copper Alloy TubesE 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 478 Test Methods for Chemical Analysis of CopperAlloysE 527 Practice for Numbering Metals and Alloys (UNS)3. Terminology3.1 Definitions:3.
10、1.1 tube, seamlessa tube produced with a continuousperiphery in all stages of the operations.3.1.1.1 pipea seamless tube conforming to the particulardimensions commercially known as nominal or standard pipesizes.3.1.2 lengthsstraight pieces of the product.3.1.2.1 standarduniform lengths recommended
11、in a Sim-plified Practice Recommendation or established as a Commer-cial Standard.3.2 Definition of Term 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 establis
12、h that thematerial does not meet these requirements the material shall besubject to rejection.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Temper (see 6.1),4.1.2 Pipe size, regular or extra-strong (see 11.2),4.1.3 Length (see 11
13、.3),4.1.4 Total length of each size, and1This specification is under the jurisdiction of ASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved May 1, 2004. Published May 2004. Originallyapproved in 1922. Last pr
14、evious edition approved in 1998 as B 43 98e1.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-43 in Section II of that Code.3The system for copper and copper alloys (see Practice E 527) is a simpleexpansion of the former standard designation system accomplished by
15、 the additionof a prefix “C” and a suffix “00.” The suffix can be used to accommodatecomposition variations of the base alloy.4For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information,
16、 refer to the standards Document Summary page onthe ASTM website.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.4.1.5 If material is required to meet ASME Boiler andP
17、ressure Vessel Code (see 6.1, 6.2, or 6.3),4.1.6 Certification, if required (see 20.1),4.1.7 Mill test report, if required (see 21.1),4.1.8 Hydrostatic test, if required, and4.1.9 Pneumatic test, if required.4.1.10 Mercurous Nitrate Test, if required (Section 9).5. Chemical Composition5.1 The materi
18、al shall conform to the following chemicalrequirements:Copper, % 84.0 to 86.0Lead, max, % 0.05Iron, max, % 0.05Zinc remainder5.2 These specification limits do not preclude the presenceof other elements. Limits for unnamed elements are to beestablished by agreement between manufacturer or supplierand
19、 purchaser.5.2.1 For copper alloys in which zinc is specified as theremainder, either copper or zinc shall be permitted to be takenas the difference between the sum of all the elements analyzedand 100 %.5.2.1.1 When all the elements in the table in 5.1 areanalyzed, their sum shall be 99.8 % minimum.
20、6. Temper6.1 All pipe shall normally be furnished in the O61 (an-nealed) (see Classificiation B 601) condition.6.2 In the O61 (annealed) temper, the degree of annealingshall be sufficient to produce complete recrystallization with anaverage grain size not in excess of 0.050 mm. The surface ofthe tes
21、t specimen for grain size determination shall approxi-mate a radial longitudinal section and shall be prepared andexamined in accordance with Test Methods E 112.6.3 The pipe is permitted to be furnished in the H58 (drawngeneral purpose) temper, if agreed upon between the manufac-turer and the purcha
22、ser. (See Table 1.)7. Mechanical Properties7.1 Material in the O61 (annealed) temper specified to meetthe requirements of the ASME Boiler and Pressure Vessel Codeonly shall have tensile properties as prescribed in Table 1.7.2 All H58 (drawn general purpose) material shall have thetensile properties
23、as prescribed in Table 1.8. Expansion Test8.1 Specimens in the O61 (annealed) temper shall withstandan expansion of 25 % of the outside diameter when expandedin accordance with Test Method B 153. The expanded pipeshall show no cracking or rupture visible to the unaided eye.Pipe ordered in the drawn
24、(H) condition is not subject to thistest.NOTE 1The term “unaided eye,” as used herein, permits the use ofcorrective spectacles necessary to obtain normal vision.8.2 As an alternative to the expansion test for pipe over 4 in.(102 mm) in diameter in the O61 (annealed) condition, asection 4 in. in leng
25、th shall be cut from the end of one of thelengths for a flattening test. This 4-in. specimen shall beflattened so that a gage set at three times the wall thickness willpass over the pipe freely throughout the flattened part. The pipeso tested shall develop no cracks or flaws visible to the unaidedey
26、e (see Note 1) as a result of this test. In making the flatteningtest the elements shall be slowly flattened by one stroke of thepress.9. Mercurous Nitrate Test9.1 WarningMercury is a definite health hazard andtherefore equipment for the detection and removal of mercuryvapor produced in volatilizati
27、on is recommended. The use ofrubber gloves in testing is advisable.9.2 When the test is required to be performed, the testspecimens, cut 6 in. (152 mm) in length, shall, after propercleaning, withstand an immersion for 30 min without crackingin the standard mercurous nitrate solution prescribed in T
28、estMethod B 154. Immediately after removal from the solution,the specimen shall be wiped free of excess mercury andexamined for cracks.9.3 Product of the O61 (annealed) temper shall pass themercurous nitrate test when tested in accordance with TestMethod B 154.9.3.1 The test need not be performed ex
29、cept when indicatedin the contract or purchase order at the time of placing of theorder.10. Nondestructive Testing10.1 The material shall be tested in the final size but ispermitted to be tested prior to the final anneal or heat treatment,when these thermal treatments are required, unless otherwisea
30、greed upon by the manufacturer or supplier and purchaser.10.2 Eddy-Current TestEach piece of material from18 in.up to and including 212 in. nominal outside diameter or withinthe capabilities of the eddy-current tester, shall be subjected toan eddy-current test. Testing shall follow the procedures of
31、Practice 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 application.10.2.1 Notch-depth standards rounded to the nearest 0.001in. (0.025 mm) shall be 10
32、% of the nominal wall thickness.The notch depth tolerances shall be 60.0005 in. (0.013 mm).Alternatively, when a manufacturer uses speed insensitiveequipment that allows the selection of a maximum imbalancesignal, a maximum imbalance signal of 0.3 % is permitted tobe used.10.2.2 Material that does n
33、ot actuate the signaling device ofthe eddy-current test shall be considered as conforming to theTABLE 1 Tensile RequirementsTemper DesignationTensileStrength, min.ksi (MPa)Yield StrengthAmin. ksi (MPa)Elongation in2-in. min. %Standard FormerO61 Annealed 40.0 (276) 12.0 (83) 35H58 Drawn generalpurpos
34、e44.0 (303) 18.0 (124) . . .AAt 0.5 % extension under load.B 43 98 (2004)2requirements 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.
35、 Signals that arefound to have been caused by minor mechanical damage, soilor moisture 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.10.3 Hydrostatic TestWhen specifie
36、d, the material shallstand, without showing evidence of leakage, an internal hydro-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 pr
37、essure of over 1000 psi (6.9 MPa)unless so specified.P 5 2St/D 2 0.8t!where:P = 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).10.3.1 For material less than12 i
38、n. (12.7 mm) in outsidediameter and less than 0.060 in. (1.5 mm) in wall thickness, thetest is permitted to be made at the option of the manufacturerby pneumatically testing to the requirements of 10.4.10.4 Pneumatic TestWhen specified, the material shall besubjected to an internal air pressure of 6
39、0 psi (415 kPa)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.11. Dimensions and Permissi
40、ble Variations11.1 For the purpose of determining conformance with thedimensional requirements prescribed in this specification, anymeasured value outside the limiting values for any dimensionsmay be cause for rejection.11.2 Standard Dimensions, Wall Thickness, and DiameterTolerancesThe standard dim
41、ensions, wall thickness, anddiameter tolerances shall be in accordance with Table 2.11.3 Length and Length TolerancesThe standard length ofred brass pipe is 12 ft (3.66 m) with a tolerance of 612 in. (13mm).11.4 Squareness of CutThe departure from squareness ofthe end of any pipe shall not exceed th
42、e 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 diameter11.5 RoundnessThe roundness tolerance for straightlength tubes with a wall thickness to outside diameter ratio of0.01 to 0.05 (inclusive) shall be 6 % of the nomi
43、nal outsidediameter. For tubes with a wall thickness to outside diameterratio over 0.05, the roundness tolerance shall be 3 % of thenominal outside diameter.11.5.1 The measurement for roundness shall be made fromthe outside diameter. The deviation from roundness is mea-sured as the difference betwee
44、n the major and minor diametersas determined at any one cross section of the tube. The majorand minor diameters are the diameters of two concentric circlesjust enclosing the outside surface of the tube at the crosssection.11.6 Straightness ToleranceFor pipe of H58 (drawn gen-eral purpose) temper of
45、Nominal Pipe Sizes from14 to 12 in.inclusive, the maximum curvature (depth of arc) shall notexceed12 in. (13 mm) in any 10-ft (3048-mm) portion of thetotal length. For H58 temper pipe of other sizes, and for theO61 (annealed) temper, no numerical values are established,however, the straightness of t
46、he pipe shall be suitable for theintended application.12. Workmanship, Finish and Appearance12.1 The material shall be free of defects of a nature thatinterfere with normal commercial applications. It shall be wellcleaned and free of dirt.13. Sampling13.1 SamplingThe lot size, portion size, and sele
47、ction ofsample pieces shall be as follows:13.1.1 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 thereof13.1.2 Portion SizeSample pieces
48、 shall be taken for testpurposes from each lot according to the following schedule:Number of Piecesin LotNumber of Sample Piecesto be TakenAA1to50 151 to 200 2201 to 1500 3Over 1500 0.2 % of total number of piecesin the lot, but not to exceed10 sample piecesAEach sample piece shall be taken from a s
49、eparate tube.13.1.3 Sampling for Visual and Dimensional ExaminationMinimum sampling for visual and dimensional examinationshall be as follows:Lot size (Pieces/lot) Sample size2 to 8 Entire lot9to90 891 to 150 12151 to 280 19281 to 500 21501 to 1200 271201 to 3200 353201 to 100 000 3810 001 to 350 000 46In all cases, the acceptance number is zero and the rejectionnumber is one. Rejected lots are permitted to be screened andB 43 98 (2004)3resubmitted for visual and dimensional examination. All de-fective items shall be replaced with acceptable items pr
