1、Designation: B395/B395M 16B395/B395M 18Standard Specification forU-Bend Seamless Copper and Copper Alloy Heat Exchangerand Condenser Tubes1This standard is issued under the fixed designation B395/B395M; the number immediately following the designation indicates the yearof original adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1
3、 This specification2 establishes the requirements for condenser, evaporator, and heat exchanger U-bend tubes that aremanufactured from seamless copper and copper alloy tube.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text,SI
4、 units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in non-conformance with the standard.1.3 This specification is applicable to product 2 in. 50
5、mm or less, inclusive, in diameter.1.4 The product shall be produced from one of the following coppers or copper alloys, as specified in the ordering information:Copper orCopper AlloyUNS No.Previously UsedDesignation Type of MetalC10200 OFA oxygen-free without residual deoxidantsC10300 . oxygen-free
6、, extra low phosphorusC10800 . oxygen-free, low phosphorusC12000 DLPA phosphorized, low residual phosphorusC12200 DHPA phosphorized, high residualphosphorusC14200 DPAA phosphorized, arsenicalC19200 . phosphorized, 1 % ironC23000 . red brassC44300 Type B admiralty metalC44400 Type C admiralty metalC4
7、4500 Type D admiralty metalC60800 . aluminum bronzeC68700 Type B aluminum brassC70400 . 95-5 copper-nickelC70600 . 90-10 copper-nickelC70620 . 90-10 copper-nickel-(modified for welding)C71000 . 80-20 copper-nickelC71500 . 70-30 copper-nickelC71520 . 70-30 copper-nickel-(modified for welding)C72200 .
8、 copper-nickelA Designations listed in Classification B224.1.5 The following safety hazard caveat pertains only to the test methods described in this specification.1.5.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof
9、the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use. (WarningMercury has been designated by many regulatory agencies as ahazardous substance that can cause serious medical is
10、sues. Mercury, or its vapor, has been demonstrated to be hazardous to health1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe andTube.Current edition approved Oct. 1, 2016March 1, 2018. Pub
11、lished November 2016April 2018. Originally approved in 1962. Last previous edition approved in 20132016as B395/B395M 13.B395/B395M 16. DOI: 10.1520/B0395_B0395M-16.10.1520/B0395_B0395M-18.2 For ASME Boiler and Pressure Vessel Code applications see related Specification SB-395 in Section II of that C
12、ode.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 prior
13、 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 19428
14、-2959. United States1and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicableproduct Safety Data Sheet (SDS) for additional information. Users should be aware that selling mercury and/or mercurycontaining products into your state o
15、r country may be prohibited by law.)1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade O
16、rganization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:3B153 Test Method for Expansion (Pin Test) of Copper and
17、Copper-Alloy Pipe and TubingB154 Test Method for Mercurous Nitrate Test for Copper AlloysB224 Classification of CoppersB601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysB858 Test Method for Ammonia Vapor Test for Dete
18、rmining Susceptibility to Stress Corrosion Cracking in Copper AlloysB900 Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government AgenciesB968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and TubeE3 Guide for Preparation of Metallographic SpecimensE8/E8
19、M Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE53 Test Method for Determination of Copper in Unalloyed Copper by GravimetryE62 Test Methods for Chemical Analysis of Copper and Copper Alloys (
20、Photometric Methods) (Withdrawn 2010)4E112 Test Methods for Determining Average Grain SizeE118 Test Methods for Chemical Analysis of Copper-Chromium Alloys (Withdrawn 2010)4E243 Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy TubesE255 Practice for Sampling Copper
21、and Copper Alloys for the Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE2575 Standard Test Method for Determination of Oxygen in Copper and Copper Alloys (Withdrawn 2017)42.3 Other Standards:Standard:5ASME Boiler and Pressure Vessel Code Boiler and Pre
22、ssure Vessel Code3. Terminology3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.3.2 Definitions of Terms Specific to This Standard:3.2.1 dual-gage tube, na tube which has more than one wall-gage thickness contained within the length of the tube.3.2.2 square
23、ness of cut, nthe maximum deviation of one side of a cross section of tube from the opposite side, when measuredagainst the projected perpendicularity of the plane of the projected center of the tube at the ends.3.2.3 u-bend tube, na tube bent 180 in a single plane into a U-shape.4. Ordering Informa
24、tion4.1 Include the following specified choices when placing orders for product under this specification, as applicable:4.1.1 ASTM designation and year of issue,4.1.2 Copper or copper alloy UNS No. designation (Section 6),4.1.3 Temper (Section 7),4.1.4 DimensionsXdiameter and wall thickness of the t
25、ube (see 12.1 and 12.2),4.1.5 Schedule of bending radii (must include the number of pieces of each radii) (see 12.2.5),4.1.6 Length of U-bend tube legs (see 12.2.8),4.1.7 If the product is to be subsequently welded (see Table 1), and4.1.8 Intended application, and3 For referencedASTM standards, visi
26、t theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4 The last approved version of this historical standard is referenced on www.astm.org.5 Available
27、 from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.B395/B395M 182TABLE 1 Chemical RequirementsCopper orCopperAlloyUNS No.Composition,%Copper Tin AluminumNickel,inclCobaltLead,max Iron Zinc Manganese Arsen
28、ic Antimony Phosphorus ChromiumOtherNamedElementsC10200A,B 99.95min. . . . . . . . . . . 10 ppmmax OC10300A 99.95Cmin. . . . . . . . . 0.0010.005 . .C10800A 99.95Cmin. . . . . . . . . 0.0050.012 . .C12000A 99.90min. . . . . . . . . 0.0040.012 . .C12200A 99.9 min . . . . . . . . . 0.0150.040 . .C1420
29、0A 99.4 min . . . . . . . 0.150.50 . 0.0150.040 . .C19200D 98.5 min . . . . 0.81.2 0.20max. . . 0.010.04 . .C23000D 84.086.0 . . . 0.05 0.05maxremainder . . . . . .C44300E 70.073.0 0.91.2 . . 0.07 0.06maxremainder . 0.020.06 . . . .C44400E 70.073.0 0.91.2 . . 0.07 0.06maxremainder . . 0.020.10 . . .
30、C44500E 70.073.0 0.91.2 . . 0.07 0.06maxremainder . . . 0.020.10 . .C60800A,F remainder . 5.06.5 . 0.10 0.10max. . 0.020.35 . . . .C68700A,F 76.079.0 . 1.82.5 . 0.07 0.06maxremainder . 0.020.06 . . . .C70400A,F remainder . . 4.86.2 0.05 1.31.7 1.0max0.30 to0.8. . . . .C70600A,F remainder . . 9.011.0
31、 0.05 1.01.8 1.0max1.0 maxG . . . . .C70620A,F 86.5 min . . 9.011.0 0.02 1.01.8 0.50max1.0 max . . 0.02 max . 0.05C max0.02S maxC71000A,F,G remainder . . 19.023.0 0.05G 1.0max1.0maxG1.0maxG. . G . GC71500A,F remainder . . 29.033.0 0.05 0.401.0 1.0max1.0 max . . . . .C71520A,F 65.0 min . . 29.033.0 0
32、.02 0.401.0 0.50max1.0 max . . 0.02 max . 0.05C max0.02S maxC72200A,D,G remainder . . 15.018.0 0.05G 0.501.0 1.0maxG1.0 max . . .G 0.300.70 G,HA Silver counting as copper.B This is a high conductivity copper which has, in the annealed condition, a minimum conductivity of 101 % IACS.C Includes P.D Cu
33、 + sum of named elements, 99.8 % min.E Cu + sum of named elements, 99.6 % min.F Cu + sum of named elements, 99.5 % min.G When the product is for subsequent welding applications, and so specified by the purchaser, zinc shall be 0.50 %, max, lead 0.02 %, max, phosphorus 0.02 %, max, sulfur 0.02 %, max
34、, and carbon 0.05 %, max.H Silicon shall be 0.03 % max, titanium shall be 0.03 % max.B395/B395M1834.1.9 If the product is to be for U.S. Government.4.2 The following options are available but may not be included unless specified at the time of placing of the order whenrequired:4.2.1 Heat identificat
35、ion or traceability details (see 5.1.2).4.2.2 Tension test (see 9.1),4.2.3 Relief anneal of U-bent portion of copper-nickel U-bend tubes (see 7.6),4.2.4 Dual-gage, a schedule of tubes required in dual-gage and length of heavy gage section must be furnished with this option(see 5.2.2 and 12.2.3),4.2.
36、5 Flattening Test (Section 10.2).4.2.6 Expansion Test (Section 10.1).4.2.7 Certification, if required (see Section 21), and4.2.8 Mill Test Report, if required (see Section 22).4.3 If product is purchased for agencies of the U.S. Government, it shall be in accordance with the requirements specified i
37、nthe Supplementary Requirements section, when specified in the contract or purchase order.4.4 If product is ordered for ASME Boiler and Pressure Vessel Code Application (See Certification Section 21).5. Materials and Manufacture5.1 Materials:5.1.1 The material of manufacture shall be of the copper a
38、lloys defined in 1.4 and of such quality and purity that the finishedproduct shall have the properties and characteristics prescribed in this specification for the applicable alloy and temper.5.1.2 When specified in the contract or purchase order that heat identification or traceability is required,
39、 the purchaser shallspecify the details desired.NOTE 1Due to the discontinuous nature of the processing of casting into wrought products, it is not always practical to identify a specific castinganalysis with a specific quantity of material.5.2 Manufacture:5.2.1 The product shall be manufactured by
40、such hot working, cold working and annealing processes as to produce a uniformwrought structure in the finished product.5.2.2 Tubes required to be U-bent to a small radius shall, if specified, be furnished as dual-gage tubes.5.2.2.1 These tubes shall be made prior to U-bending with the wall thicknes
41、s of the central section of the tube length, increasedthe equivalent of one Stubs or Birmingham Wire Gage (BWG) thicker than the wall thickness specified for the straight leg portionof the U-bend tube.5.2.2.2 Unless otherwise specified, dual-gage tubes shall be made to constant inside diameter; that
42、 is, the increased wallthickness shall be obtained by increasing the outside diameter of the finished tube in the central heavy gage section.5.2.3 The bent portion of the U-bend tube shall be substantially uniform in curvature.6. Chemical Composition6.1 The material shall conform to the chemical com
43、position requirements specified in Table 1 for the copper or copper alloyUNS No. designation specified in the ordering information.6.1.1 Results of analysis on a product (check) sample shall conform to the composition requirements within the permittedanalytical variance specified in Table 1.6.2 Thes
44、e composition limits do not preclude the presence of unnamed elements. By agreement between the manufacturer andpurchaser, limits may be established and analysis required for unnamed elements.6.3 Copper Alloy UNS No. C19200Copper may be taken as the difference between the sum of all the elements ana
45、lyzed and100 %.6.4 For copper alloys in which copper is specified as the remainder, copper may be taken as the difference between the sum ofall the elements analyzed and 100 %.6.5 For copper alloys in which zinc is specified as the remainder, either copper or zinc may be taken as the difference betw
46、eenthe sum of all the elements analyzed and 100 %.7. Temper7.1 Tempers, as defined in Classification B601, are as follows:7.2 Prior to U-bending, tubes of Copper Alloy UNS Nos. C23000, C44300, C44400, C44500, C60800, C68700, C70400,C70600, C70620, C71000, C71500, C71520, and C72200 shall be in the a
47、nnealed temper (O61), unless otherwise specified in thepurchase order.B395/B395M 1847.3 Prior to bending, U-bend tubes of Copper Alloy UNS Nos. C10200, C10300, C10800, C12000, C12200, and C14200 shallbe in light drawn temper (H55). Tubes of Copper Alloy UNS Nos. C70400, C70600, C70620, and C72200 sh
48、all, if specified, bemade in the light-drawn temper (H55).7.4 Prior to bending, U-bend tubes of Copper Alloy UNS No. C19200 shall be in the annealed (O61) or light drawn temper(H55) as specified.7.5 Prior to bending, U-bend tubes of Copper Alloy UNS No. C71500 or C71520 shall be made in the drawn, s
49、tress-relievedtemper (HR50), when specified.7.6 The U-bend portion of tubes furnished in CopperAlloy UNS Nos. C23000, C44300, C44400, C44500, C60800, and C68700shall be relief annealed (HR) after bending. If specified, the U-bend portion of tubes furnished in CopperAlloy UNS Nos. C70400,C70600, C70620, C71000, C71500, C71520, and C72200 shall be relief annealed (HR) after bending.NOTE 2Some tubes, when subjected to aggressive environments, may be subject to stress-corrosion cracking failure because of the residual tensilest
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