1、Designation: B88M 05 (Reapproved 2011)Standard Specification forSeamless Copper Water Tube (Metric)1This standard is issued under the fixed designation B88M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision
2、. A number in parentheses 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. Scope1.1 This specification covers seamless copper water tu
3、besuitable for general plumbing, similar applications for theconveyance of fluids, and commonly used with solder, flared,or compression-type fittings. The type of copper water tubesuitable for any particular application is determined by theinternal or external fluid pressure, by the installation and
4、service conditions, and by local requirements. Means of joiningor bending are also factors that affect the selection of the typeof tube to be used.2NOTE 1Annealed tube is suitable for use with flared or compressionfittings, and with solder-type fittings, provided rounding and sizing of thetube ends
5、is performed where needed.NOTE 2Drawn temper tube is suitable for use with solder-typefittings. Types A and B tube, in the drawn temper, are suitable for use withcertain types and sizes of compression fittings.NOTE 3This specification is the metric companion of SpecificationB88.1.2 The tube shall be
6、 produced from the following coppers,and the manufacturer has the option to supply any one of them,unless otherwise specified:CopperUNS No.Previously UsedDesignationDescriptionC10200 OF Oxygen free withoutresidual deoxidantsC12000 DLP Phosphorus deoxidized,low residual phosphorusC12200 DHP Phosphoru
7、s deoxidized,high residual phosphorus1.3 The assembly of copper plumbing or fire sprinklersystems by soldering is described in Practice B828.1.4 Solders for joining copper potable water or fire sprinklersystems are covered by Specification B32. The requirementsfor acceptable fluxes for these systems
8、 are covered by Speci-fication B813.1.5 This specification is the SI companion to SpecificationB88.1.6 The following safety hazards caveat pertains only to thetest methods portion, Section 15, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associat
9、ed with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on dateof material purchase form
10、 a part of this specification to theextent referenced herein:2.2 ASTM Standards:3B32 Specification for Solder MetalB88 Specification for Seamless Copper Water TubeB153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubingB577 Test Methods for Detection of Cuprous Oxide (Hy-d
11、rogen Embrittlement Susceptibility) in CopperB601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastB813 Specification for Liquid and Paste Fluxes for Solder-ing of Copper and Copper Alloy TubeB828 Practice for Making Capillary Joints by Soldering ofCopper and Copper
12、Alloy Tube and FittingsE2 Methods of Preparation of Micrographs of Metals andAlloys (Including Recommended Practice for PhotographyAs Applied to Metallography); Replaced by E 88341This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsib
13、ility of Subcommittee B05.04 on Pipeand Tube.Current edition approved April 1, 2011. Published September 2011. Originallyapproved in 1983. Last previous edition approved in 2005 as B88M 05. DOI:10.1520/B0088M-05R11.2The UNS system for copper and copper alloys (see Practice E527) is a simpleexpansion
14、 of the former standard designation system accomplished by the additionof a prefix “C” and a suffix “00.” The suffix is permitted to be used to accommodatecomposition variations of the base alloy.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at
15、 serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, Wes
16、t Conshohocken, PA 19428-2959, United States.E3 Guide for Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with S
17、pecificationsE53 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 Electromagnetic (Eddy-Current) Exami-nation of Copper
18、 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. Terminology3.1 Definitions:3.1.1 coil, na length of the product wound into a series ofconnected
19、turns. The unqualified term “coil” as applied to tubeusually refers to a bunched coil.3.1.2 bunched, na coil in which the turns are bunched andheld together such that the cross section of the bunched turnsis approximately circular.3.1.3 double layer flat, na coil in which the product isspirally woun
20、d into two connected disk-like layers such thatone layer is on top of the other. (Sometimes called “doublelayer pancake coil” or “double layer spirally wound coil.”)3.1.4 level or traverse wound, na coil in which the turnsare wound into layers parallel to the axis of the coil such thatsuccessive tur
21、ns in a given layer are next to one another.(Sometimes called “helical coil.”)3.1.5 single layer flat, na coil in which the product isspirally wound into a single disk-like layer. (Sometimes called“pancake coil” or “single layer spirally wound coil.”)3.1.6 lengths, nstraight pieces of the product.3.
22、1.7 standard, nuniform lengths recommended in a sim-plified practice recommendation or established as a commer-cial standard.3.1.8 tube, seamless, na tube produced with a continuousperiphery in all stages of the operations.3.1.9 tube, copper service, na bendable copper water tubefor underground wate
23、r service.3.1.10 tube, copper water, na seamless copper tube con-forming to the particular dimensions commercially known asCopper Water Tube and designated as Types A, B, and C.3.2 Definitions of Terms Specific to This Standard:3.2.1 capable ofas used in this specification, the test neednot be perfo
24、rmed by the producer of the material. However,should subsequent testing by the purchaser establish that thematerial does not meet these requirements, the material shall besubject to rejection.4. Ordering Information4.1 Include the following information for material orderedunder this specification.4.
25、1.1 ASTM designation and year of issue (for example,B88M 03),4.1.2 Copper UNS No. (not necessary unless a specificcopper is desired),4.1.3 Nominal or standard size (Column 1 of Table 1) andwhether Type A, B, or C (Section 3),TABLE 1 Dimensions, Mass, and Tolerances in Diameter and Wall Thickness for
26、 Metric Copper Water Tube Sizes(All tolerances are plus and minus except as otherwise indicated.)Nominal orStandardSize, mmOutsideDiameter,mmAverage OutsideDiameterATolerance, mmWall Thickness and Tolerances, mm Theoretical Mass, kg/mAnnealed DrawnType A Type B Type CType A Type B Type CWallThicknes
27、sToler-anceBWallThicknessToler-anceBWallThicknessToler-anceB6 6.0 0.05 0.03 0.80 0.08 0.70 0.07 0.60C0.117 0.104 0.0918 8.0 0.05 0.03 0.90 0.09 0.80 0.08 0.60C0.179 0.162 0.12510 10.0 0.05 0.03 0.90 0.09 0.80 0.08 0.60C0.230 0.207 0.15812 12.0 0.06 0.03 1.2 0.1 0.90 0.09 0.60 0.06 0.364 0.280 0.1921
28、5 15.0 0.06 0.03 1.2 0.1 1.0 0.1 0.70 0.07 0.465 0.393 0.28118 18.0 0.06 0.03 1.2 0.1 1.0 0.1 0.70 0.07 0.566 0.477 0.34022 22.0 0.06 0.03 1.6 0.15 1.1 0.1 0.80 0.08 0.917 0.646 0.47628 28.0 0.07 0.04 1.6 0.15 1.2 0.1 0.90 0.09 1.19 0.903 0.68535 35.0 0.10 0.04 1.6 0.15 1.4 0.15 1.1 0.1 1.50 1.32 1.
29、0542 42.0 0.10 0.05 1.8 0.2 1.5 0.15 1.2 0.1 2.03 1.71 1.3754 54.0 0.10 0.05 2.1 0.2 1.7 0.15 1.5 0.15 3.06 2.50 2.2167 67.0 0.12 0.05 2.4 0.25 2.0 0.2 1.6 0.15 4.35 3.65 2.9479 79.0 0.12 0.05 2.8 0.3 2.3 0.25 1.8 0.2 5.99 4.95 3.90105 105.0 0.12 0.05 3.4 0.35 2.8 0.3 2.4 0.25 9.70 8.04 6.92130 130.
30、0 0.12 0.05 4.0 0.4 3.1 0.3 2.7 0.25 14.2 11.0 9.65156 156.0 0.12 0.05 4.8 0.5 3.5 0.35 3.1 0.3 20.3 15.0 13.3206 206.0 0.15 + 0.050.106.8 0.7 5.0 0.5 4.3 0.45 38.0 28.2 24.4257 257.0 0.20 + 0.050.158.5 0.85 6.3 0.65 5.4 0.55 59.3 44.4 38.2308 308.0 0.20 + 0.050.1510.3 1.0 7.1 0.7 6.4 0.65 86.1 60.0
31、 54.2AThe average outside diameter of a tube is the average of the maximum and minimum outside diameter, as determined at any one cross section of the tube.BMaximum deviation at any one point.CIndicates that the material is not generally available or that no tolerance has been established.B88M 05 (2
32、011)24.1.4 Temper (Section 7),4.1.5 Length (see 11.5),4.1.6 How furnished: straight or coils,4.1.7 Quantity (pieces) of each size and type,4.1.8 In addition, when material is purchased for agencies ofthe U.S. Government, it shall conform to the SupplementaryRequirements as defined herein when specif
33、ied in the contractor purchase order.4.2 The following options are available and shall be speci-fied in the contract or purchase order when required:4.2.1 Tension test (Section 8),4.2.2 Grain size determination (Section 8),4.2.3 Expansion test (9.1), and4.2.4 Microscopical Examination for Hydrogen E
34、mbrittle-ment, Procedure B (9.3.2).5. Materials and Manufacture5.1 The material shall be of such quality and purity that thefinished product shall have the properties and characteristicsprescribed in this specification, and shall be cold worked tosize.5.2 The tube shall be finished by such cold-work
35、ing andannealing operations as are necessary to produce the requiredtemper and surface finish.5.3 Tube when furnished in coils shall be annealed aftercoiling.5.4 Tube when furnished in straight lengths shall normallybe in the drawn temper. Upon agreement between the manu-facturer or supplier and the
36、 purchaser, the manufacturer shallhave the option to supply annealed straight length tubing.6. Chemical Composition6.1 The material shall conform to the chemical requirementsin Table 2 for the specific type of copper.6.2 These specification limits do not preclude the presenceof other elements. When
37、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 copper water tube shall be furnished in the tempersdesignated below. Current designations as defined in
38、Classifi-cation B601 are as follows:Annealed-ODrawn-H8. Mechanical Properties8.1 The tube shall conform to the mechanical propertyrequirements prescribed in Table 3. Tension tests and grainsizedeterminations need not be made except when indicated by thepurchaser at the time of placing the order.Acon
39、venient methodof indicating that these tests are to be made is to state that “TestProcedure T is required” (see 4.2.1). Where agreement on theRockwell hardness tests cannot be reached, the tensile strengthand grain-size requirements of Table 3 shall be the basis foracceptance or rejection.9. Perform
40、ance Requirements9.1 Expansion TestThe annealed (O) tube shall be capableof being expanded in accordance with Test Method B153 withan expansion of the outside diameter in the following amount:Nominal orStandard Size, mmExpansion ofOutside Diameter, %15 and under 40Over 15 30The expanded tube shall s
41、how no cracking or rupture visibleto the unaided eye.NOTE 4The term “unaided eye” as used herein permits the use ofcorrective spectacles necessary to obtain normal vision.9.2 Flattening TestAs an alternative to the expansion testfor tube standard sizes 105 mm and over in the annealedcondition, a sec
42、tion 100 mm in length shall be cut from the endof one of the lengths for a flattening test. This100-mm testspecimen shall be flattened so that a gage set at three times thewall thickness will pass over the tube freely throughout theflattened part. The tube so tested shall develop no cracks orflaws v
43、isible to the unaided eye as a result of this test. Inmaking the flattening test the elements shall be slowly flattenedby one stroke of the press.9.3 Microscopical Examination for Susceptibility to Hydro-gen Embrittlement:9.3.1 Tubes furnished in Copper UNS No. C10200 andC12000 shall be essentially
44、free of cuprous oxide as deter-mined by Procedure A of Test Methods B577. When CopperUNS No. C12200 is supplied, examination is not required. Incase of a dispute, Procedure C of Test Methods B577 shall beused as the referee method.9.3.2 Tubes furnished in all coppers shall be capable ofpassing the e
45、mbrittlement test specified in Procedure B of TestMethods B577. The actual performance of the test is notrequired unless specifically requested in the ordering docu-ment. In case of a dispute, Procedure C of Test Methods B577shall be used as the referee method.10. Nondestructive Testing10.1 Eddy-Cur
46、rent TestUnless otherwise specified, eachtube up to and including 79 mm in outside diameter shall besubjected to an eddy-current test. Testing shall follow theprocedure of Practice E243, except the determination of “endeffect” is not required.10.1.1 The testing of tube of dimensions beyond the capa-
47、bilities of the eddy-current test apparatus shall be subject tonegotiation between the producer and the purchaser.10.1.2 Notch-depth standards, rounded to the nearest 0.03mm, shall be 22 % of the wall thickness. The notch-depthtolerance shall be 60.01 mm.Alternatively, at the option of themanufactur
48、er using speed insensitive eddy-current units thatTABLE 2 Chemical CompositionWeight %Element Copper UNS No.C10200AC12000 C12200Copper,Bmin 99.95 99.90 99.9Phosphorus . 0.0040.012 0.0150.040AOxygen shall be 10 ppm max.BCopper + silver.B88M 05 (2011)3are equipped to select a fraction of the maximum u
49、nbalancesignal, the following percent maximum unbalance signals shallbe used:Nominal or Standard Tube Size, mmUnbalance SignalMagnitude, max %Up to and incl 12 0.215 to 54, incl 0.3Over 54 to 79, incl 0.410.1.3 Tubes that do not actuate the signalling device of theeddy-current testers shall be considered as conforming to therequirements of this test. Tubes with discontinuities indicatedby the testing unit shall, at the option of the manufacturer, bereexamined or retested to determine whether the discontinuityis cause for rejection. Signals that are found
