1、Designation: B395/B395M 16Standard 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 the case of rev
2、ision, 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 This specifi
3、cation2establishes the requirements forcondenser, evaporator, and heat exchanger U-bend tubes thatare manufactured 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. Withinthe text, SI units are show
4、n in brackets. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 This specification is applicable to product 2 in. 50 mmor less, inclusi
5、ve, in diameter.1.4 The product shall be produced from one of the followingcoppers or copper alloys, as specified in the ordering informa-tion:Copper orCopper AlloyUNS No.Previously UsedDesignationType of MetalC10200 OFAoxygen-free without residual deoxidantsC10300 . oxygen-free, extra low phosphoru
6、sC10800 . oxygen-free, low phosphorusC12000 DLPAphosphorized, low residual phosphorusC12200 DHPAphosphorized, high residualphosphorusC14200 DPAAphosphorized, arsenicalC19200 . phosphorized, 1 % ironC23000 . red brassC44300 Type B admiralty metalC44400 Type C admiralty metalC44500 Type D admiralty me
7、talC60800 . aluminum bronzeC68700 Type B aluminum brassC70400 . 95-5 copper-nickelC70600 . 90-10 copper-nickelCopper orCopper AlloyUNS No.Previously UsedDesignationType of MetalC70620 . 90-10 copper-nickel-(modified for welding)C71000 . 80-20 copper-nickelC71500 . 70-30 copper-nickelC71520 . 70-30 c
8、opper-nickel-(modified for welding)C72200 . copper-nickelADesignations listed in Classification B224.1.5 The following safety hazard caveat pertains only to thetest methods described in this specification.1.5.1 This standard does not purport to address all of thesafety concerns, if any, associated w
9、ith its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. (WarningMercury has been designated by many regulatory agencies asa hazardous substance that can cause seri
10、ous medical issues.Mercury, or its vapor, has been demonstrated to be hazardousto health and corrosive to materials. Caution should be takenwhen handling mercury and mercury containing products. Seethe applicable product Safety Data Sheet (SDS) for additionalinformation. Users should be aware that s
11、elling mercuryand/or mercury containing products into your state or countrymay be prohibited by law.)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 Standards:3B153 Test Me
12、thod for Expansion (Pin Test) of Copper andCopper-Alloy Pipe and TubingB154 Test Method for Mercurous Nitrate Test for CopperAlloys1This specification is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipeand Tube.Cur
13、rent edition approved Oct. 1, 2016. Published November 2016. Originallyapproved in 1962. Last previous edition approved in 2013 as B395/B395M 13.DOI: 10.1520/B0395_B0395M-16.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-395 in Section II of that Code.3For refer
14、enced 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 standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyri
15、ght ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1B224 Classification of CoppersB601 Classification for Temper Designations for Copper andCopper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysB858 Test Method forAmmonia Va
16、por Test for DeterminingSusceptibility to Stress Corrosion Cracking in CopperAlloysB900 Practice for Packaging of Copper and Copper AlloyMill Products for U.S. Government AgenciesB968/B968M Test Method for Flattening of Copper andCopper-Alloy Pipe and TubeE3 Guide for Preparation of Metallographic S
17、pecimensE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE62 Test Methods for Chemical Analysis of Copper andCopp
18、erAlloys (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) Examina-tion of Copper and Copper-Alloy TubesE255 Practice for Sampl
19、ing Copper and Copper Alloys forthe Determination of Chemical CompositionE478 Test Methods for Chemical Analysis of Copper AlloysE2575 Test Method for Determination of Oxygen in Copperand Copper Alloys2.3 Other Standards:5ASME Boiler and Pressure Vessel Code3. Terminology3.1 For definitions of terms
20、 related to copper and copperalloys, 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 onewall-gage thickness contained within the length of the tube.3.2.2 squareness of cut, nthe maximum deviation of oneside of a cross sec
21、tion of tube from the opposite side, whenmeasured against the projected perpendicularity of the plane ofthe projected center of the tube at the ends.3.2.3 u-bend tube, na tube bent 180 in a single plane intoa U-shape.4. Ordering Information4.1 Include the following specified choices when placingorde
22、rs 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 (Section6),4.1.3 Temper (Section 7),4.1.4 DimensionsXdiameter and wall thickness of thetube (see 12.1 and 12.2),4.1.5 Schedule of bending radii (must inclu
23、de the number ofpieces 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 Table1), and4.1.8 Intended application, and4.1.9 If the product is to be for U.S. Government.4.2 The following options are available but may not bei
24、ncluded unless specified at the time of placing of the orderwhen required:4.2.1 Heat identification 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-nickelU-bend tubes (see 7.6),4.2.4 Dual-gage, a schedule of tubes required in dual-gage
25、and length of heavy gage section must be furnished with thisoption (see 5.2.2 and 12.2.3),4.2.5 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 fo
26、r agencies of the U.S.Government, it shall be in accordance with the requirementsspecified in the Supplementary Requirements section, whenspecified in the contract or purchase order.4.4 If product is ordered for ASME Boiler and PressureVessel Code Application (See Certification Section 21).5. Materi
27、als and Manufacture5.1 Materials:5.1.1 The material of manufacture shall be of the copperalloys defined in 1.4 and of such quality and purity that thefinished product shall have the properties and characteristicsprescribed in this specification for the applicable alloy andtemper.5.1.2 When specified
28、 in the contract or purchase order thatheat identification or traceability is required, the purchasershall specify the details desired.NOTE 1Due to the discontinuous nature of the processing of castinginto wrought products, it is not always practical to identify a specificcasting analysis with a spe
29、cific quantity of material.5.2 Manufacture:5.2.1 The product shall be manufactured by such hotworking, cold working and annealing processes as to producea uniform wrought structure in the finished product.5.2.2 Tubes required to be U-bent to a small radius shall, ifspecified, be furnished as dual-ga
30、ge tubes.5.2.2.1 These tubes shall be made prior to U-bending withthe wall thickness of the central section of the tube length,increased the equivalent of one Stubs or Birmingham WireGage (BWG) thicker than the wall thickness specified for thestraight leg portion of the U-bend tube.5.2.2.2 Unless ot
31、herwise specified, dual-gage tubes shall bemade to constant inside diameter; that is, the increased wall4The last approved version of this historical standard is referenced onwww.astm.org.5Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Two Park Ave.,
32、New York, NY 10016-5990, http:/www.asme.org.B395/B395M 162TABLE1ChemicalRequirementsCopperorCopperAlloyUNSNo.Composition,%CopperTinAluminumNickel,inclCobaltLead,maxIronZincManganeseArsenicAntimonyPhosphorusChromiumOtherNamedElementsC10200A,B99.95 min.10ppmmaxOC10300A99.95Cmin.0.0010.005.C10800A99.95
33、Cmin.0.0050.012.C12000A99.90 min.0.0040.012.C12200A99.9min.0.0150.040.C14200A99.4min.0.150.50.0.0150.040.C19200D98.5min.0.81.20.20max.0.010.04.C23000D84.086.0.0.050.05 maxremainder.C44300E70.073.00.91.2.0.070.06 maxremainder.0.020.06.C44400E70.073.00.91.2.0.070.06 maxremainder.0.020.10.C44500E70.073
34、.00.91.2.0.070.06 maxremainder.0.020.10.C60800A,Fremainder.5.06.5.0.100.10 max.0.020.35.C68700A,F76.079.0.1.82.5.0.070.06 maxremainder.0.020.06.C70400A,Fremainder.4.86.20.051.31.71.0max0.30to0.8.C70600A,Fremainder.9.011.00.051.01.81.0max1.0maxG.C70620A,F86.5min.9.011.00.021.01.80.50max1.0max.0.02max
35、.0.05Cmax0.02SmaxC71000A,F,Gremainder.19.023.00.05G1.0max1.0maxG1.0maxG.G.GC71500A,Fremainder.29.033.00.050.401.01.0max1.0max.C71520A,F65.0min.29.033.00.020.401.00.50max1.0max.0.02max.0.05Cmax0.02SmaxC72200A,D,Gremainder.15.018.00.05G0.501.01.0maxG1.0max.G0.300.70G,HASilvercountingascopper.BThisisah
36、ighconductivitycopperwhichhas,intheannealedcondition,aminimumconductivityof101%IACS.CIncludesP.DCu+sumofnamedelements,99.8%min.ECu+sumofnamedelements,99.6%min.FCu+sumofnamedelements,99.5%min.GWhentheproductisforsubsequentweldingapplications,andsospecifiedbythepurchaser,zincshallbe0.50%,max,lead0.02%
37、,max,phosphorus0.02%,max,sulfur0.02%,max,andcarbon0.05%,max.HSiliconshallbe0.03%max,titaniumshallbe0.03%max.B395/B395M 163thickness shall be obtained by increasing the outside diameterof the finished tube in the central heavy gage section.5.2.3 The bent portion of the U-bend tube shall be substan-ti
38、ally uniform in curvature.6. Chemical Composition6.1 The material shall conform to the chemical compositionrequirements 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 shallconform to t
39、he composition requirements within the permittedanalytical variance specified in Table 1.6.2 These composition limits do not preclude the presenceof unnamed elements. By agreement between the manufacturerand purchaser, limits may be established and analysis requiredfor unnamed elements.6.3 Copper Al
40、loy UNS No. C19200Copper may be takenas the difference between the sum of all the elements analyzedand 100 %.6.4 For copper alloys in which copper is specified as theremainder, copper may be taken as the difference between thesum of all the elements analyzed and 100 %.6.5 For copper alloys in which
41、zinc is specified as theremainder, either copper or zinc may be taken as the differencebetween the sum of all the elements analyzed and 100 %.7. Temper7.1 Tempers, as defined in Classification B601, are asfollows:7.2 Prior to U-bending, tubes of Copper Alloy UNS Nos.C23000, C44300, C44400, C44500, C
42、60800, C68700,C70400, C70600, C70620, C71000, C71500, C71520, andC72200 shall be in the annealed temper (O61), unless other-wise specified in the purchase order.7.3 Prior to bending, U-bend tubes of Copper Alloy UNSNos. C10200, C10300, C10800, C12000, C12200, and C14200shall be in light drawn temper
43、 (H55). Tubes of Copper AlloyUNS Nos. C70400, C70600, C70620, and C72200 shall, ifspecified, be made in the light-drawn temper (H55).7.4 Prior to bending, U-bend tubes of Copper Alloy UNSNo. C19200 shall be in the annealed (O61) or light drawntemper (H55) as specified.7.5 Prior to bending, U-bend tu
44、bes of Copper Alloy UNSNo. C71500 or C71520 shall be made in the drawn, stress-relieved temper (HR50), when specified.7.6 The U-bend portion of tubes furnished in Copper AlloyUNS Nos. C23000, C44300, C44400, C44500, C60800, andC68700 shall be relief annealed (HR) after bending. Ifspecified, the U-be
45、nd portion of tubes furnished in CopperAlloy UNS Nos. C70400, C70600, C70620, C71000, C71500,C71520, and C72200 shall be relief annealed (HR) afterbending.NOTE 2Some tubes, when subjected to aggressive environments, maybe subject to stress-corrosion cracking failure because of the residualtensile st
46、resses developed in straightening. For such applications, it issuggested that tubes of Copper Alloy UNS Nos. C23000, C44300,C44400, C44500, C60800, and C68700 be subjected to a stress relieving(HR) thermal treatment subsequent to straightening. If required, this mustbe specified on the purchase orde
47、r or contract. Tolerances for roundnessand length, and the condition of straightness, for tube so ordered, shall beto the requirements agreed upon by the manufacturer and purchaser.8. Grain Size for Annealed Tempers8.1 Grain size shall be the standard requirement for allproduct in annealed tempers.8
48、.2 Acceptance or rejection based upon grain size shalldepend only on the average grain size of a test specimen takenfrom each of two sample portions and each specimen shall bewithin the limits of 0.010 to 0.045 mm when determined inaccordance with Test Methods E112.8.3 The requirements of this secti
49、on do not apply to productof the light-drawn temper (H55) drawn, stress-relieved temper(HR50), or to the U-bent portion of the product.9. Mechanical Property Requirements9.1 Tensile Strength Requirements:9.1.1 Product specified to meet the requirements of ASMEBoiler and Pressure Vessel Code shall have tensile propertiesas prescribed in Table 2 for product specified in inch-poundunits or Table 3 for product specified in SI
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