1、Designation: B 280 03Standard Specification forSeamless Copper Tube for Air Conditioning andRefrigeration Field Service1This standard is issued under the fixed designation B 280; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、year of last revision. A number in 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 establis
3、hes the requirements for seam-less copper tube intended for use in the connection, repairs, oralternations of air conditioning or refrigeration units in thefield.NOTE 1Fittings used for soldered or brazed connections in airconditioning and refrigeration systems are described in ASME StandardB16.22.N
4、OTE 2The assembly of copper tubular systems by soldering isdescribed in Practice B 828.NOTE 3Solders for joining copper tubular systems are described inSpecification B 32. The requirements for acceptable fluxes for thesesystems are described in Specification B 813.1.2 The tube shall be produced from
5、 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 deoxidized,h
6、igh residual phosphorus1.3 Values stated in inch-pound units are the standard exceptfor grain size which is stated in SI units. SI values given inparentheses are for information only.1.4 The following hazard statement pertains only to the testmethod described in Section 18.2.4 of this specification:
7、 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 to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documen
8、ts2.1 ASTM Standards:2B 32 Specification for Solder MetalB 153 Test Method for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubeB 577 Test Methods for Detection of Cuprous Oxide (Hy-drogen Embrittlement Susceptibility) in CopperB 601 Classification for Temper Designations for Copperand Co
9、pper 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 FittingsE 3 Guide for Preparation of Metallographic SpecimensE 8 Test Metho
10、ds for Tension Testing of Metallic MaterialsE 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 53 Test Methods for Determination of Copper in Unal-loyed Copper by GravimetryE 62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometr
11、ic Methods)E 112 Test Methods for Determining the Average GrainSizeE 243 Practice for Electromagnetic (Eddy-Current) Exami-nation of Seamless Copper and Copper-Alloy TubesE 255 Practice for Sampling Copper and Copper Alloys forDetermination of Chemical CompositionE 527 Practice for Numbering Metals
12、and Alloys (UNS)2.2 ASME Standards:3B1622 Wrought Copper and Copper Alloy Solder JointPressure Fittings1This 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 Oct.
13、1, 2003. Published November 2003. Originallyapproved in 1953. Last previous edition approved in 2002 as B 280 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the
14、 standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harb
15、or Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3. Terminology3.1 Definitions:3.1.1 average diameter (for round tubes only), ntheaverage of the maximum and minimum outside diameters, ormaximum and minimum inside diameters, whichever is appli-cable, as determined at any one cro
16、ss section of the tube.3.1.2 bright anneal, na thermal treatment carried out in acontrolled atmosphere so that surface oxidation is reduced to aminimum and the surface remains relatively bright.3.1.3 coil, na length of the product wound into a series ofconnected turns. The unqualified term “coil” as
17、 applied to tubeusually refers to a bunched coil.3.1.3.1 bunched, na coil in which the turns are bunchedand held together such that the cross section of the bunchedturns is approximately circular.3.1.3.2 level or traverse wound, na coil in which the turnsare wound into layers parallel to the axis of
18、 the coil such thatsuccessive turns in a given layer are next to one another.(Sometimes called “helical coil.”)3.1.3.3 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.”)3.1.3.4 double
19、 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 lengths, nstraight pieces of the product.3.1.4.1 specific, nstraight len
20、gths that are uniform inlength, as specified, and subject to established length toler-ances.3.1.4.2 standard, nuniform lengths recommended in aSimplified Practice Recommendation or established as a Com-mercial Standard.3.1.5 tube, seamless, na tube produced with a continuousperiphery in all stages o
21、f the operations.3.1.5.1 tube, air conditioning, na seamless copper tubeconforming to a standard series of sizes (Table 6) and tospecified internal cleanness requirements, normally furnishedin drawn temper straight lengths with the ends capped orsealed.3.1.5.2 tube, refrigeration service, na seamles
22、s coppertube conforming to a standard series of sizes (Table 5) and tospecial internal cleanliness and dehydration requirements,normally furnished in soft temper coils and with ends cappedor sealed.3.2 Definitions of Terms Specific to This Standard:3.2.1 capable ofthe test need not be performed by t
23、heproducer of the material. However, if subsequent testing by thepurchaser establishes that the material does not meet theserequirements, the material shall be subject to rejection.4. Ordering Information4.1 Include this information for contracts or purchase ordersfor products furnished to this spec
24、ification:4.1.1 ASTM designation and year of issue (for example,B 280 03),4.1.2 Copper UNS No. (not necessary unless a specificcopper is desired),4.1.3 Dimensions; wall thickness, diameter, and so forth(Section 13),4.1.4 How furnished: coils or straight lengths,4.1.5 Temper (for example, O60 or H58)
25、,4.1.6 Size (Tables 5 and 6),4.1.7 Length (Section 13),4.1.8 Quantity (total pieces of each size and type),4.1.9 When product purchased for agencies of the U.S.Government (Section 12).4.2 The following options are available and shall be speci-fied in the contract or purchase order when required:4.2.
26、1 Expansion test (Section 10.1),4.2.2 Cleanness test (Sections 10.2 and 18.2.4),4.2.3 Microscopical Examination for Hydrogen Embrittle-ment, Procedure B (10.3.2),4.2.4 Certification (Section 22), and4.2.5 Test report (Section 23).5. Materials and Manufacture5.1 MaterialsThe material of manufacture s
27、hall be billets,bars, or tube and shall be of such soundness as to be suitablefor processing into the tubular products described.5.2 Manufacture:5.2.1 The tube shall be manufactured by such hot or coldworking processes as to produce a homogeneous uniformwrought structure in the finished product. The
28、 tube shall becold drawn to the finished size and wall thickness.5.2.2 Coiled lengths specified O60, soft annealed temper,shall be bright annealed after coiling, then dehydrated, andcapped, plugged, crimped, or otherwise closed at both ends soas to maintain the internal cleanness of the tubing under
29、 normalconditions of handling and storage.5.2.3 Straight lengths specified H58 hard-drawn tempershall be cleaned and capped, plugged, or otherwise closed atboth ends so as to maintain the internal cleanness of the tubingunder normal conditions of handling and storage.6. Chemical Composition6.1 The c
30、hemical composition shall conform to the chemi-cal requirements in Table 1 for the specific type of copper.6.1.1 These limits do not preclude the presence of otherelements. When included in the contract or purchase order, andagreed upon by the manufacturer or supplier and the purchaser,limits shall
31、be established and analysis required for unnamedelements.7. Temper7.1 Product under this specification shall be furnished ineither O60 (soft annealed) or H58 (drawn general purpose)TABLE 1 Chemical CompositionWeight %Element Copper UNS No.C10200AC12000 C12200Copper,Bmin 99.95 99.90 99.9Phosphorus .
32、. . 0.0040.012 0.0150.040AOxygen shall be 10 ppm max.BCopper + silver.B280032temper, as specified in the contract or purchase order anddefined in Classification B 601.7.1.1 Coils are normally furnished in O60 temper andstraight lengths in H58 temper.8. Grain Size8.1 Coiled lengths shall be furnished
33、 in the O60 temper andshall have a recrystallized average grain size of 0.035 mmminimum when determined in accordance with Test MethodsE 112.9. Tensile Requirements9.1 The tube shall conform to the tensile requirementsprescribed in Table 2.10. Performance Requirements10.1 Expansion Test:10.1.1 Tube
34、furnished in the O60 soft annealed temper shallbe capable of being expanded in accordance with Test MethodB 153 to the following extent:10.1.1.1 The expanded tube shall show no cracking or otherdefects visible to the unaided eye.10.1.2 Unless specified in the contract or purchase order,this test is
35、not required to be performed by the manufacturer.10.2 Cleanness of Interior Surface:10.2.1 When specified in the contract or purchase order, thistest shall be performed by the manufacturer.10.2.2 After evaporation of the cleaning solvent, the residueweight shall not exceed 0.0035 g/ft2(0.038 g/m2)of
36、theinterior surface. The maximum amount of residue in grams pertube shall not exceed the limits specified in Table 3 and Table4.10.3 Microscopical Examination for Susceptibility to Hy-drogen Embrittlement:10.3.1 Tubes furnished in Copper UNS No. C10200 andC12000 shall be essentially free of cuprous
37、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 Methods B 577 shall beused as the referee method.10.3.2 Tubes furnished in all coppers shall be capable ofpassing the embrittlement
38、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 dispute, Procedure C of Test Methods B 577shall be used as the referee method.11. Nondestructive Testing11.1 Electromagnetic (Ed
39、dy-Current) Examination:11.1.1 Each straight length of tube up to and including 318in. (79.4 mm) in outside diameter, shall be subjected toexamination.11.1.2 Tubes that do not actuate the signaling device on thetesting unit, after having been adjusted to provide informationon the suitability of the
40、tube for the intended application, shallconform to the requirements of this test. Testing shall be inaccordance with Practice E 243.11.1.3 Testing of coiled lengths shall be subject to negotia-tion between the manufacturer and the purchaser.11.1.4 For tubes too large for the testing unit, the testme
41、thod to be used shall be by agreement between the manu-facturer and the purchaser.12. Purchases for Agencies of the U.S. Government12.1 When specified in the contract or purchase order,product purchased for agencies of the U.S. Government shallconform to the requirements stipulated in the Supplement
42、aryRequirements.13. Dimensions, Mass, and Permissible Variations13.1 The standard dimensions and weights per foot for thevarious nominal sizes are given in Tables 5 and 6.TABLE 2 Tensile RequirementsFormTemper DesignationTensile Strength,minElongation in2 in. (50.8mm), min, %Standard Former ksiAMPaB
43、Coiled lengths O60 soft annealed 30 205 40Straight lengths H58 drawn generalpurpose36 250 . . .Aksi = 1000 psi.BSee Appendix X1.TABLE 3 Interior Surface Residue Limits of Soft Coiled LengthsStandardSize, in.WallThickness, in.(mm)Internal Area per Length of Tube,ft2(m2)ResidueALimit per 50-ft(15.2-m)
44、 Coil,g1 ft (0.305 m) 50 ft (15.2 m)18 0.030 (0.762) 0.0171 (0.001 59) 0.85 (0.0795) 0.0030316 0.030 (0.762) 0.0333 (0.003 09) 1.67 (0.155) 0.005814 0.030 (0.762) 0.0498 (0.004 67) 2.49 (0.234) 0.0087516 0.032 (0.813) 0.6050 (0.006 04) 3.25 (0.302) 0.011438 0.032 (0.813) 0.0815 (0.007 57) 4.08 (0.37
45、9) 0.014312 0.032 (0.813) 0.1142 (0.0106) 5.71 (0.530) 0.020058 0.035 (0.889) 0.1453 (0.0135) 7.26 (0.675) 0.025434 0.035 (0.889) 0.1780 (0.0165) 8.90 (0.827) 0.031234 0.042 (1.07) 0.1744 (0.0162) 8.72 (0.810) 0.030578 0.045 (1.14) 0.2055 (0.0191) 10.28 (0.955) 0.0360118 0.050 (1.27) 0.2683 (0.0249)
46、 13.42 (1.24) 0.0470138 0.055 (1.40) 0.3312 (0.0308) 16.56 (1.54) 0.0580158 0.060 (1.52) 0.3940 (0.0366) 19.70 (1.83) 0.0690AResidue limit 0.0035-g/ft2(0.038-g/m2) inside area.TABLE 4 Interior Surface Residue Limits of Straight LengthsStandardSize, in.WallThickness, in.(mm)Internal Area per Length o
47、f Tube,ft2(m2)ResidueALimit per 20-ft(6.10-m)StraightLength, g1 ft (0.305 m) 20 ft (6.10 m)38 0.030 (0.762) 0.0824 (0.007 65) 1.65 (0.153) 0.005812 0.035 (0.889) 0.1126 (0.0105) 2.25 (0.210) 0.007958 0.040 (1.02) 0.1427 (0.0133) 2.85 (0.266) 0.010034 0.042 (1.07) 0.1744 (0.0162) 3.49 (0.324) 0.01227
48、8 0.045 (1.14) 0.2055 (0.0191) 4.11 (0.382) 0.0144118 0.050 (1.27) 0.2683 (0.0249) 5.37 (0.498) 0.0188138 0.055 (1.40) 0.3312 (0.0308) 6.62 (0.616) 0.0232158 0.060 (1.52) 0.3940 (0.0366) 7.88 (0.732) 0.0276218 0.070 (1.78) 0.5197 (0.0423) 10.39 (0.846) 0.0364258 0.080 (2.03) 0.6453 (0.0599) 12.91 (1
49、.120) 0.0453318 0.090 (2.29) 0.7710 (0.0716) 15.42 (1.43) 0.0540358 0.100 (2.54) 0.8966 (0.0833) 17.93 (1.67) 0.0628418 0.110 (2.79) 1.0220 (0.0949) 20.44 (1.90 0.0717AResidue limit 0.0035-g/ft2(0.038-g/m2) inside area.B28003313.2 Wall Thickness and DiameterThe tolerances for wallthickness and diameter shall conform to the requirementsspecified in Tables 7 and 5.13.3 Lengths and Tolerances:13.3.1 Standard Lengths and TolerancesThe standardlength for coils shall be 50 ft (15.2 m). The length tolerancesfor 50-ft coils shall be +12 in
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