1、Designation: B 88M 05METRICStandard Specification forSeamless Copper Water Tube Metric1This standard is issued under the fixed designation B 88M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number i
2、n parentheses indicates the year of last reapproval. Asuperscript epsilon (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 specification covers seamless copper water tubesuitable
3、 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 andservice co
4、nditions, 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 is perform
5、ed 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 produced
6、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 Phosphorus deoxidiz
7、ed,high residual phosphorus1.3 The assembly of copper plumbing or fire sprinklersystems by soldering is described in Practice B 828.1.4 Solders for joining copper potable water or fire sprinklersystems are covered by Specification B32. The requirementsfor acceptable fluxes for these systems are cove
8、red by Speci-fication B 813.1.5 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, associated with its use. It is the responsibility of the userof this standard t
9、o 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 a part of this specification to theextent referenced herein:2.2 ASTM S
10、tandards:3B32 Specification for Solder MetalB88 Specification for Seamless Copper Water TubeB 153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubingB 577 Test Methods for Detection of Cuprous Oxide (Hy-drogen Embrittlement Susceptibility) in CopperB 601 Classification for
11、 Temper Designations for Copperand Copper AlloysWrought and CastB 813 Specification for Liquid and Paste Fluxes for Solder-ing Applications of Copper and Copper Alloy TubeB 828 Practice for Making Capillary Joints by Soldering ofCopper and Copper Alloy Tube and FittingsE2 Methods of Preparation of M
12、icrographs of Metals andAlloys4E3 Practice for Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE18 Test Methods for Rockwell Hardness and Rockwell1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the d
13、irect responsibility of Subcommittee B05.04 on Pipeand Tube.Current edition approved Oct. 1, 2005. Published October 2005. Originallyapproved in 1983. Last previous edition approved in 2003 as B 88M 03.2The UNS system for copper and copper alloys (see Practice E 527) is a simpleexpansion of the form
14、er 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 serviceastm
15、.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn.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,
16、 United States.Superficial Hardness of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE53 Test Methods for Determination of Copper in Unal-loyed Copper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopper Alloys
17、(Photometric Methods)E112 Test Methods for Determining the Average GrainSizeE 243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Copper and Copper-Alloy TubesE 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 527 Practice for Numbering Met
18、als and Alloys (UNS)3. Terminology3.1 Definitions:3.1.1 coil, na length of the product wound into a series ofconnected 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 sect
19、ion of the bunched turnsis approximately circular.3.1.3 double layer flat, na coil in which the product isspirally wound 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 t
20、raverse wound, na coil in which the turnsare wound into layers parallel to the axis of the coil such thatsuccessive turns 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. (
21、Sometimes called“pancake coil” or “single layer spirally wound coil.”)3.1.6 lengths, nstraight pieces of the product.3.1.7 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 continuous
22、periphery in all stages of the operations.3.1.9 tube, copper service, na bendable copper water tubefor underground water 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
23、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 material shall besubject to
24、 rejection.4. Ordering Information4.1 Include the following information for material orderedunder this specification.4.1.1 ASTM designation and year of issue (for example,B 88M 03),4.1.2 Copper UNS No. (not necessary unless a specificcopper is desired),4.1.3 Nominal or standard size (Column 1 of Tab
25、le 1) andwhether Type A, B, or C (Section 3),4.1.4 Temper (Section 7),TABLE 1 Dimensions, Mass, and Tolerances in Diameter and Wall Thickness for Metric Copper Water Tube Sizes(All tolerances are plus and minus except as otherwise indicated.)Nominal orStandardSize, mmOutsideDiameter,mmAverage Outsid
26、eDiameterATolerance, mmWall Thickness and Tolerances, mm Theoretical Mass, kg/mAnnealed DrawnType A Type B Type CType A Type B Type CWallThicknessToler-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
27、.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 0.19215 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
28、 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 1.0542 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
29、 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 130.0 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
30、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 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
31、.BMaximum deviation at any one point.CIndicates that the material is not generally available or that no tolerance has been established.B88M0524.1.5 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
32、 agencies ofthe U.S. Government, it shall conform to the SupplementaryRequirements as defined herein when specified 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 Gr
33、ain size determination (Section 8),4.2.3 Expansion test (9.1), and4.2.4 Microscopical Examination for Hydrogen Embrittle-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 characteristicspr
34、escribed in this specification, and shall be cold worked tosize.5.2 The tube shall be finished by such cold-working 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 str
35、aight lengths shall normallybe in the drawn temper. Upon agreement between the manu-facturer or supplier and the 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
36、 the specific type of copper.6.2 These specification limits do not preclude the presenceof other elements. When 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. Temper
37、7.1 The copper water tube shall be furnished in the tempersdesignated below. Current designations as defined in Classifi-cation B 601 are as follows:Annealed-ODrawn-H8. Mechanical Properties8.1 The tube shall conform to the mechanical propertyrequirements prescribed in Table 3. Tension tests and gra
38、insizedeterminations need not be made except when indicated by thepurchaser at the time of placing the order.Aconvenient 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, th
39、e tensile strengthand grain-size requirements of Table 3 shall be the basis foracceptance or rejection.9. Performance Requirements9.1 Expansion TestThe annealed (O) tube shall be capableof being expanded in accordance with Test Method B 153 withan expansion of the outside diameter in the following a
40、mount:Nominal orStandard Size, mmExpansion ofOutside Diameter, %15 and under 40Over 15 30The expanded tube shall show 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
41、TestAs an alternative to the expansion testfor tube standard sizes 105 mm and over in the annealedcondition, a section 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
42、 will pass over the tube freely throughout theflattened part. The tube so tested shall develop no cracks orflaws visible 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 Suscep
43、tibility to Hydro-gen Embrittlement:9.3.1 Tubes furnished in Copper UNS No. C10200 andC12000 shall be essentially free of cuprous oxide as deter-mined by Procedure A of Test Methods B 577. When CopperUNS No. C12200 is supplied, examination is not required. Incase of a dispute, Procedure C of Test Me
44、thods B 577 shall beused as the referee method.9.3.2 Tubes furnished in all coppers shall be capable ofpassing the embrittlement test specified in Procedure B of TestMethods B 577. The actual performance of the test is notrequired unless specifically requested in the ordering docu-ment. In case of a
45、 dispute, Procedure C of Test Methods B 577shall be used as the referee method.10. Nondestructive Testing10.1 Eddy-Current 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 E
46、 243, except the determination of “endeffect” is not required.10.1.1 The testing of tube of dimensions beyond the capa-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
47、be 22 % of the wall thickness. The notch-depthtolerance shall be 60.01 mm.Alternatively, at the option of themanufacturer 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
48、.0150.040AOxygen shall be 10 ppm max.BCopper + silver.B88M053are equipped to select a fraction of the maximum unbalancesignal, 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
49、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 to have beencaused by minor mechanical damage, soil, or moisture shall notbe cause for rejection of the tubes provided the tube dimen-sions are still within the prescribed limits and the tu
