1、Designation: B280 08B280 13Standard Specification forSeamless Copper Tube for Air Conditioning andRefrigeration Field Service1This standard is issued under the fixed designation B280; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. 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. Scope*1.1 This specification esta
3、blishes the requirements for seamless copper tube intended for use in the connection, repairs, oralternations of air conditioning or refrigeration units in the field.NOTE 1Fittings used for soldered or brazed connections in air conditioning and refrigeration systems are described in ASME Standard B1
4、6.22.NOTE 2The assembly of copper tubular systems by soldering is described in Practice B828.NOTE 3Solders for joining copper tubular systems are described in Specification B32. The requirements for acceptable fluxes for these systems aredescribed in Specification B813.1.2 The tube shall be produced
5、 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 deoxid
6、ized,high residual phosphorus1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 The following hazard statement pertains only to th
7、e test method described in Section 18.2.4 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 to establish appropriate safety and health practices and determine the applicabi
8、lity of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2B32 Specification for Solder MetalB153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and TubingB577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copp
9、erB601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB813 Specification for Liquid and Paste Fluxes for Soldering of Copper and Copper Alloy TubeB828 Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and FittingsB900 Practice for P
10、ackaging of Copper and Copper Alloy Mill Products for U.S. Government AgenciesE3 Guide for Preparation of Metallographic SpecimensE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications1 This specifi
11、cation is under the jurisdiction of ASTM CommitteeB05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe andTube.Current edition approved April 15, 2008April 1, 2013. Published May 2005April 2013. Originally approved in 1953. Last previous edition approved in
12、 20032008 asB280 03.B280 08. DOI: 10.1520/B0280-08.10.1520/B0280-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. ForAnnual Book ofASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM web
13、site.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prio
14、r editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942
15、8-2959. United States1E53 Test Method for Determination of Copper in Unalloyed Copper by GravimetryE62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)3E112 Test Methods for Determining Average Grain SizeE243 Practice for Electromagnetic (Eddy-Cur
16、rent) Examination of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)2.2 ASME Standards:4B1622 Wrought Copper and Copper Alloy Solder Joint
17、 Pressure Fittings3. Terminology3.1 Definitions:3.1.1 average diameter (for round tubes only), nthe average of the maximum and minimum outside diameters, or maximumand minimum inside diameters, whichever is applicable, as determined at any one cross section of the tube.3.1.2 bright anneal, na therma
18、l treatment carried out in a controlled 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 of connected turns. The unqualified term “coil” as applied to tubeusually refers to a bunched coil.3.
19、1.3.1 bunched, na coil in which the turns are bunched and held together such that the cross section of the bunched turnsis approximately circular.3.1.3.2 level or traverse wound, na coil in which the turns are wound into layers parallel to the axis of the coil such thatsuccessive turns in a given la
20、yer are next to one another. (Sometimes called “helical coil.”)3.1.3.3 single layer flat, na coil in which the product is spirally wound into a single disc-like layer. (Sometimes called“pancake coil” or “single layer spirally wound coil.”)3.1.3.4 double layer flat, na coil in which the product is sp
21、irally wound into two connected disc-like layers such that one layeris on top of the other. (Sometimes called “double layer pancake coil” or “double layer spirally wound coil.”)3.1.4 lengths, nstraight pieces of the product.3.1.4.1 specific, nstraight lengths that are uniform in length, as specified
22、, and subject to established length tolerances.3.1.4.2 standard, nuniform lengths recommended in a Simplified Practice Recommendation or established as a CommercialStandard.3.1.5 tube, seamless, na tube produced with a continuous periphery in all stages of the operations.3.1.5.1 tube, air conditioni
23、ng, na seamless copper tube conforming to a standard series of sizes (Table 1) and to specifiedinternal cleanness requirements, normally furnished in drawn temper straight lengths with the ends capped or sealed.3.1.5.2 tube, refrigeration service, na seamless copper tube conforming to a standard ser
24、ies of sizes (Table 2) and to specialinternal cleanliness and dehydration requirements, normally furnished in soft temper coils and with ends capped or sealed.3.2 Definitions of Terms Specific to This Standard:3.2.1 capable ofthe test need not be performed by the producer of the material. However, i
25、f subsequent testing by thepurchaser establishes that the material does not meet these requirements, the material shall be subject to rejection.4. Ordering Information4.1 Include this information for contracts or purchase orders for products furnished to this specification:4.1.1 ASTM designation and
26、 year of issue (for example, B280 03),4.1.2 Copper UNS No. (not necessary unless a specific copper 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),4.1.6 Size (Tables 1 and 2),4.1.7
27、 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 specified in the contract or purchase order when required:4.2.1 Tensile test (Section 9),3 The l
28、ast approved version of this historical standard is referenced on www.astm.org.4 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.B280 1324.2.2 Expansion test (Section 10.1),4.2.3 Cleanness t
29、est (Sections 10.2 and 18.2.4),4.2.4 Microscopical Examination for Hydrogen Embrittlement, Procedure B (10.3.2),4.2.5 Certification (Section 22), and4.2.6 Test report (Section 23).5. Materials and Manufacture5.1 MaterialsThe material of manufacture shall be billets, bars, or tube and shall be of suc
30、h soundness as to be suitable forprocessing into the tubular products described.5.2 Manufacture:5.2.1 The tube shall be manufactured by such hot or cold working processes as to produce a homogeneous uniform wroughtstructure in the finished product. The tube shall be cold drawn to the finished size a
31、nd wall thickness.5.2.2 Coiled lengths specified O60, soft annealed temper, shall be bright annealed after coiling, then dehydrated, and capped,plugged, crimped, or otherwise closed at both ends so as to maintain the internal cleanness of the tubing under normal conditionsof handling and storage.5.2
32、.3 Straight lengths specified H58 hard-drawn temper shall be cleaned and capped, plugged, or otherwise closed at both endsso as to maintain the internal cleanness of the tubing under normal conditions of handling and storage.TABLE 1 Standard Dimensions and Weights, and Tolerances in Diameter and Wal
33、l Thickness for Straight LengthsNOTE 1Applicable to drawn temper tube only.Standard Size, in. Outside Diameter, in. (mm) Wall Thickness, in. (mm) Weight, lb/ft (kg/m)TolerancesAverageA OutsideDiameter, Plus and Minus,in. (mm)Wall B Thickness, Plus andMinus, in. (mm)14 0.250 (6.35) 0.025 (0.635) 0.06
34、8 (0.102) 0.001 (0.025) 0.0025 (0.06)38 0.375 (9.52) 0.030 (0.762) 0.126 (0.187) 0.001 (0.025) 0.003 (0.08)12 0.500 (12.7) 0.035 (0.889) 0.198 (0.295) 0.001 (0.025) 0.004 (0.09)12 0.500 (12.7) 0.035 (0.889) 0.198 (0.295) 0.001 (0.025) 0.004 (0.10)58 0.625 (15.9) 0.040 (1.02) 0.285 (0.424) 0.001 (0.0
35、25) 0.004 (0.10)34 0.750 (19.1) 0.042 (1.07) 0.362 (0.539) 0.001 (0.025) 0.004 (0.11)34 0.750 (19.1) 0.042 (1.07) 0.362 (0.539) 0.001 (0.025) 0.004 (0.10)78 0.875 (22.3) 0.045 (1.14) 0.455 (0.677) 0.001 (0.025) 0.004 (0.11)78 0.875 (22.3) 0.045 (1.14) 0.455 (0.677) 0.001 (0.025) 0.004 (0.10)118 1.12
36、5 (28.6) 0.050 (1.27) 0.655 (0.975) 0.0015 (0.038) 0.004 (0.13)118 1.125 (28.6) 0.050 (1.27) 0.655 (0.975) 0.0015 (0.038) 0.004 (0.10)138 1.375 (34.9) 0.055 (1.40) 0.884 (1.32) 0.0015 (0.038) 0.006 (0.14)138 1.375 (34.9) 0.055 (1.40) 0.884 (1.32) 0.0015 (0.038) 0.006 (0.15)158 1.625 (41.3) 0.060 (1.
37、52) 1.14 (1.70) 0.002 (0.051) 0.006 (0.15)218 2.125 (54.0) 0.070 (1.78) 1.75 (2.60) 0.002 (0.051) 0.007 (0.18)258 2.625 (66.7) 0.080 (2.03) 2.48 (3.69) 0.002 (0.051) 0.008 (0.20)318 3.125 (79.4) 0.090 (2.29) 3.33 (4.96) 0.002 (0.051) 0.009 (0.23)358 3.625 (92.1) 0.100 (2.54) 4.29 (6.38) 0.002 (0.051
38、) 0.010 (0.25)418 4.125 (105) 0.110 (2.79) 5.38 (8.01) 0.002 (0.051) 0.011 (0.28)A The average outside diameter of a tube is the average of the maximum and minimum outside diameters as determined at any one cross section of the tube.B The tolerances listed represent the maximum deviation at any poin
39、t.TABLE 2 Standard Dimensions and Weights, and Tolerances in Diameter and Wall Thickness for Coil LengthsStandard Size, in. Outside Diameter, in. (mm) Wall Thickness, in. (mm) Weight, lb/ft (kg/m)TolerancesAverageA OutsideDiameter, Plus and Minus,in. (mm)WallB Thickness, Plusand Minus, in. (mm)18 0.
40、125 (3.18) 0.030 (0.762) 0.0347 (0.0516) 0.002 (0.051) 0.003 (0.08)316 0.187 (4.75) 0.030 (0.762) 0.0575 (0.0856) 0.002 (0.051) 0.003 (0.08)14 0.250 (6.35) 0.030 (0.762) 0.0804 (0.120) 0.002 (0.051) 0.003 (0.08)516 0.312 (7.92) 0.032 (0.813) 0.109 (0.162) 0.002 (0.051) 0.003 (0.08)38 0.375 (9.52) 0.
41、032 (0.813) 0.134 (0.199) 0.002 (0.051) 0.003 (0.08)12 0.500 (12.7) 0.032 (0.813) 0.182 (0.271) 0.002 (0.051) 0.003 (0.08)58 0.625 (15.9) 0.035 (0.889) 0.251 (0.373) 0.002 (0.051) 0.004 (0.11)34 0.750 (19.1) 0.035 (0.889) 0.305 (0.454) 0.0025 (0.064) 0.004 (0.11)78 0.875 (22.3) 0.045 (1.14) 0.455 (0
42、.677) 0.003 (0.076) 0.004 (0.11)118 1.125 (28.6) 0.050 (1.27) 0.655 (0.975) 0.0035 (0.089) 0.005 (0.13)138 1.375 (34.9) 0.055 (1.40) 0.884 (1.32) 0.004 (0.10) 0.006 (0.15)158 1.625 (41.3) 0.060 (1.52) 1.14 (1.70) 0.0045 (0.11) 0.006 (0.15)A The average outside diameter of a tube is the average of th
43、e maximum and minimum outside diameters as determined at any one cross section of the tube.B The tolerances listed represent the maximum deviation at any point.B280 1336. Chemical Composition6.1 The chemical composition shall conform to the chemical requirements in Table 3 for the specific type of c
44、opper.6.1.1 These limits do not preclude the presence of other elements. When included in the contract or purchase order, and agreedupon by the manufacturer or supplier and the purchaser, limits shall be established and analysis required for unnamed elements.7. Temper7.1 Product under this specifica
45、tion shall be furnished in either O60 (soft annealed) or H58 (drawn general purpose) temper, asspecified in the contract or purchase order and defined in Classification B601.7.1.1 Coils are normally furnished in O60 temper and straight lengths in H58 temper.8. Grain Size8.1 Coiled lengths shall be f
46、urnished in the O60 temper and shall have a recrystallized grain size of 0.040 mm minimum whendetermined in accordance with Test Methods E112.9. Tensile Requirements9.1 The tube shall conform to the tensile requirements prescribed in Table 4.9.2 Tensile tests need not be performed except when specif
47、ied in the contract or purchase order.10. Performance Requirements10.1 Expansion Test:10.1.1 Tube furnished in the O60 soft annealed temper shall be capable of being expanded in accordance with Test MethodB153 to the following extent:10.1.1.1 The expanded tube shall show no cracking or other defects
48、 visible to the unaided eye.10.1.2 Unless specified in the contract or purchase order, this test is 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, this test shall be performed by the manufacturer.10.2.2 Af
49、ter evaporation of the cleaning solvent, the residue weight shall not exceed 0.0035 g/ft2 (0.038 g/m 2) of the interiorsurface. The maximum amount of residue in grams per tube shall not exceed the limits specified in Table 5 and Table 6.10.3 Microscopical Examination for Susceptibility to Hydrogen Embrittlement:10.3.1 Tubes furnished in Copper UNS No. C10200 and C12000 shall be essentially free of cuprous oxide as determined byProcedureAof Test Methods B577. When Copper UNS No. C12200 is supplied, examination is not require
