1、Designation: B763/B763M 131Standard Specification forCopper Alloy Sand Castings for Valve Applications1This standard is issued under the fixed designation B763/B763M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last
2、 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 Department of Defense.1NOTEDesignation was corrected editorially in October
3、 2013.1. Scope*1.1 This specification establishes requirements for copperalloy sand castings for valve applications. Nominal composi-tions of the alloys defined by this specification are shown inTable 1.2NOTE 1This specification does not cover Copper Alloy UNS Nos.C83600, C92200, C96200, and C96400.
4、 These alloys are also used invalve applications. They are covered by the following specifications:C83600: B62C92200: B61C96200: B369C96400: B3691.2 The castings produced under this specification are usedin products which may be manufactured in advance andsupplied for sale from stock by the manufact
5、urer.1.3 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in non-confo
6、rmance with the standard.2. Referenced Documents2.1 ASTM Standards:3B61 Specification for Steam or Valve Bronze CastingsB62 Specification for Composition Bronze or Ounce MetalCastingsB208 Practice for Preparing Tension Test Specimens forCopper Alloy Sand, Permanent Mold, Centrifugal, andContinuous C
7、astingsB369 Specification for Copper-Nickel Alloy CastingsB824 Specification for General Requirements for CopperAlloy CastingsE10 Test Method for Brinell Hardness of Metallic MaterialsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)3. General Requirements3.1 The fol
8、lowing sections of Specification B824 form apart of this specification.3.1.1 Terminology,3.1.2 Other Requirements,3.1.3 Dimensions, Mass, and Permissible Variations,3.1.4 Workmanship, Finish, and Appearance,3.1.5 Sampling,3.1.6 Number of Tests and Retests,3.1.7 Specimen Preparation,3.1.8 Test Method
9、s,3.1.9 Significance of Numerical Limits,3.1.10 Inspection,3.1.11 Rejection and Rehearing,3.1.12 Certification,3.1.13 Test Report,3.1.14 Product Marking,3.1.15 Packaging and Package Marking, and3.1.16 Supplementary Requirements.4. Ordering Information4.1 Include the following information when placin
10、g ordersfor product under this specification, as applicable:4.1.1 Specification title, number, and year of approval,4.1.2 Quantity of castings,4.1.3 Copper Alloy UNS Number and temper (as-cast,heat-treated, etc.),4.1.4 Pattern or drawing number and condition (as-cast,machined, etc.),1This specificat
11、ion is under the jurisdiction ofASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.05 onCastings and Ingots for Remelting.Current edition approved April 1, 2013. Published April 2013. Originallyapproved in 1986. Last previous edition approved in 2012 a
12、s B763 12. DOI:10.1520/B0763_B0763M-13E01.2The UNS system for copper and copper alloys (see Practice E527) is a simpleexpansion of the former standard designation system accomplished by the additionof a prefix “C” and a suffix “00”. The suffix can be used to accommodatecomposition variations of the
13、base alloy.3For 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 standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end o
14、f this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.1.5 When castings are purchased for agencies of the U.S.Government, the Supplementary Requirements of Specifica-tion B824 may be specified.4.2 The following requirements
15、 are optional and should bespecified in the purchase order when required.4.2.1 Chemical analysis of residual elements (6.3),4.2.2 Pressure test or soundness requirements (SpecificationB824),4.2.3 Approval of weld repair and records of repair (Section10),4.2.4 Certification (Specification B824),4.2.5
16、 Foundry test report (Specification B824),4.2.6 Witness inspection (Specification B824),4.2.7 Product marking (Specification B824),4.2.8 Castings for seawater service (5.1).5. Materials and Manufacture5.1 For better corrosion resistance in sea water applications,castings in Copper Alloy UNS No. C958
17、00 shall be given atemper anneal heat treatment at 1250 6 50F 675 6 10C for6-h minimum. Cooling shall be by the fastest means possiblethat will not cause excessive distortion or cracking.5.2 Copper Alloy UNS Nos. C94700, C95300, C95400,C95410, and C95500 may be supplied in the heat-treatedcondition
18、to obtain the higher mechanical properties shown inTable 4. Suggested heat treatments for these alloys and copperalloy UNS No. C95520 are given in Table 5. Actual practicemay vary by manufacturer.TABLE 1 Nominal CompositionsClassificationCopper AlloyUNS No.Commercial Designation Copper Tin Lead Zinc
19、 Nickel IronAlumi-numMan-ganeseSili-conBismuthSele-niumLeaded red brass C83450 88 212 2612 1 . . . . . .C83800 83-4-6-7 or commercial red brass 83 4 6 7 . . . . . . . . . . . . . . . . . . . . .Leaded semi-red brass C84400 81-3-7-9 or valve composition 81 3 7 9 . . . . . . . . . . . . . . . . . . .
20、. .C84800 76-212-612-15, or semi-red brass 76 212 612 15 . . . . . . .Leaded yellow brass C85200 high-copper yellow brass 72 1 3 24 . . . . . . . . . . . . . . . . . . . . .C85400 commercial No. 1 yellow brass 67 1 3 29 . . . . . . . . . . . . . . . . . . . . .C85700 leaded naval brass 61 1 1 37 . .
21、 . . . . . . . . . . . . . . . . . . .High-strength yellowbrassC86200 high-strength manganese bronze 63 . . . . . . 27 . . . 3 4 3 . . . . . . . . .C86300 high-strength manganese bronze 61 . . . . . . 27 . . . 3 6 3 . . . . . . . . .C86400 leaded manganese bronze 58 1 1 38 . . . 11212 . . .C86500 No
22、. 1 manganese bronze 58 . . . . . . 39 . . . 1 1 1 . . . . . . . . .C86700 leaded manganese bronze 58 1 1 34 . . . 2 2 2 . . . . . . . . .Silicon bronze and silicon C87300 silicon bronze 95 . . . . . . . . . . . . . . . . . . 1 4 . . . . . .brass C87400 silicon brass 82 . . .12 14 . . . . 312 . .C87
23、500 silicon brass 82 . . . . . . 14 . . . . . . . . . . . . 4 . . . . . .C87600 silicon bronze 89 . . . . . . 6 . . . . . . . . . . . . 5 . . . . . .C87610 silicon bronze 92 . . . . . . 4 . . . . . . . . . . . . 4 . . . . . .C89530 Bismuth-Selenium 86.5 4.7 . . . 8.0 . . . . . . . . . . . . . . . 1.
24、5 .20C89535 Bismuth 86.5 3.0 . . . 7.0 .65 . . . . . . . . . . . . 1.4 . . .Bismuth brass C89720A67.5 1 . 29.8 . . 0.5 . 0.5 0.7 .Bismuth semi-red brass C89844 bismuth brass 8412 4 . 8 . . . . . 3 .Tin bronze and leaded tin C90300 88-8-0-4, or modified “G” bronze 88 8 . . . 4 . . . . . . . . . . . .
25、 . . . . . . . . .bronzeC90500 88-10-0-2, on “G” bronze 88 10 . . . 2 . . . . . . . . . . . . . . . . . . . . .C92300 87-8-1-4, or Navy PC 87 8 1 4 . . . . . . . . . . . . . . . . . . . . .C92600 87-10-1-2 87 10 1 2 . . . . . . . . . . . . . . . . . . . . .High-lead tin bronze C93200 83-7-7-3 83 7 7
26、 3 . . . . . . . . . . . . . . . . . . . . .C93500 85-5-9-1 85 5 9 1 . . . . . . . . . . . . . . . . . . . . .C93700 80-10-10 80 10 10 . . . . . . . . . . . . . . . . . . . . . . . .C93800 78-7-15 78 7 15 . . . . . . . . . . . . . . . . . . . . . . . .C94300 71-5-24 71 5 24 . . . . . . . . . . . . .
27、 . . . . . . . . . . .Nickel-tin bronze and C94700 nickel-tin bronze grade “A” 88 5 . . . 2 5 . . . . . . . . . . . . . . . . . .leaded nickel-tinbronzeC94800 leaded nickel-tin bronze grade “B” 87 5 1 2 5 . . . . . . . . . . . . . . . . . .C94900 leaded nickel-tin bronze grade “C” 80 5 5 5 5 . . . .
28、 . . . . . . . . . . . . . .Aluminum bronze C95200 Grade A 88 . . . . . . . . . . . . 3 9 . . . . . . . . . . . .C95300 Grade B 89 . . . . . . . . . . . . 1 10 . . . . . . . . . . . .C95400 Grade C 85 . . . . . . . . . . . . 4 11 . . . . . . . . . . . .C95410 84 . . . . . . . . . 2 4 10 . . . . . .
29、. . . . . .Silicon aluminum bronze C95600 Grade E 91 . . . . . . . . . . . . . . . 7 . . . 2 . . . . . .Nickel aluminum bronze C95500 Grade D 81 . . . . . . . . . 4 4 11 . . . . . . . . . . . .C95800 81.3 . . . . . . . . . 4.5 4 9 1.2 . . . . . . . . .Leaded nickel bronze C97300 12 % leaded nickel s
30、ilver 57 2 9 20 12 . . . . . . . . . . . . . . . . . .C97600 20 % leaded nickel silver 64 4 4 8 20 . . . . . . . . . . . . . . . . . .C97800 25 % leaded nickel silver 66 5 2 2 25 . . . . . . . . . . . . . . . . . .Special alloys C99400 87 . . . . . . 4.4 3.0 3.0 1.6 . . . 1.0 . . . . . .C99500 87 .
31、. . . . . 1.5 4.5 4.0 1.7 . . . 1.3 . . . . . .AAntimony 0.07, Boron 0.001.B763/B763M 1312TABLE2ChemicalRequirementsComposition,%max,exceptasindicatedCopperAlloy UNSNo.MajorElementsResidualElementsCopperTinLeadZincIronNickelinclCobaltAlu- minumManga-neseSili-conBis-muthSeleniumIronAnti-monyNickelinc
32、lCobaltSulfurPhos-phorusAlu-minumManga-neseSili-conLeadC8345087.089.02.03.51.53.05.57.5.0.82.0.0.300.25.0.080.030.005.0.005.C8380082.083.83.34.25.07.05.08.0.1.0A.0.300.25.0.080.030.005.0.005.C8440078.082.02.33.56.08.07.010.0.1.0A.0.400.25.0.080.020.005.0.005.C8480075.077.02.03.05.57.013.017.0.1.0A.0
33、.400.25.0.080.020.005.0.005.C8520070.074.00.72.01.53.820.027.0.0.60.201.00.050.020.005.0.05.C8540065.070.00.501.51.53.824.032.0.0.7.1.0.0.35.0.05.C8570058.064.00.501.50.81.532.040.0.0.7.1.0.0.8.0.05.C8620060.066.00.200.2022.028.02.04.0.3.04.92.55.0.1.0.C8630060.066.00.200.2022.028.02.04.0.5.07.52.55
34、.0.1.0.C8640056.062.00.501.50.501.534.042.00.402.0.0.501.50.101.5.1.0.C8650055.060.01.00.4036.042.00.402.0.0.501.50.101.5.1.0.C8670055.060.01.50.501.530.038.01.03.0.1.03.01.03.5.1.0.C8730094.0min.0.090.25.0.81.53.55.0.0.20.C8740079.0min.1.012.016.0.2.54.0.0.8.C8750079.0min.0.0912.016.0.3.05.0.0.50.C
35、8760088.0min.0.094.07.00.20.3.55.5.0.25.C8761090.0min.0.093.05.00.20.3.05.0.0.25.C8953084.089.03.56.0.207.09.0.1.0.1.02.0.10.30.30.20.05.01.01.C8953584.089.02.55.5.255.09.0.301.0.82.0.50.30.20.0.40.01.01.C89720B63.0min0.601.5.26.032.0.0.351.5.0.401.00.502.0.0.10.0.10.0.02.0.10.0.09C8984483.086.03.05
36、.0.7.010.0.1.0A.2.04.0.0.300.25.0.080.050.005.0.0050.20C9030086.089.07.59.00.303.05.0.1.0A.0.200.20.0.050.050.005.0.005.C9050086.089.09.011.00.301.03.0.1.0A.0.200.20.0.050.050.005.0.005.C9230085.089.07.59.00.301.02.55.0.1.0A.0.250.25.0.050.050.005.0.005.C9260086.088.59.310.50.81.51.32.5.0.7A.0.200.2
37、5.0.050.030.005.0.005.C9320081.085.06.37.56.08.01.04.0.1.0A.0.200.35.0.080.150.005.0.005.C9350083.086.04.36.08.010.02.0.1.0A.0.200.30.0.080.050.005.0.005.C9370078.082.09.011.08.011.00.8.0.50A.0.70.50.0.080.100.005.0.005.C9380075.079.06.37.513.016.00.8.1.0A.0.150.8.0.080.050.005.0.005.C9430067.072.04
38、.56.023.027.00.8.1.0A.0.150.8.0.080.080.005.0.005.C9470085.090.04.56.00.09C1.02.5.4.56.0.0.250.15.0.050.050.0050.200.005.C9480084.089.04.56.00.301.01.02.5.4.56.0.0.250.15.0.050.050.0050.200.005.C9490079.081.04.06.04.06.04.06.0.4.06.0.0.300.25.0.080.050.0050.100.005.C9520086.0min.2.54.0.8.59.5.C95300
39、86.0min.0.81.5.9.011.0.C9540083.0min.3.05.01.510.011.50.50.C9541083.0min.3.05.01.52.510.011.50.50.C9550078.0min.3.05.03.05.510.011.53.5.C9560088.0min.0.256.08.0.1.83.2.C9580079.0min.0.03.3.54.5D4.05.0D8.59.50.81.5.0.10.C9730053.058.01.53.08.011.017.025.01.511.014.0.0.35.0.080.050.0050.500.15.C976006
40、3.067.03.54.53.05.03.09.01.519.021.5.0.25.0.080.050.0051.00.15.C9780064.067.04.05.51.02.51.04.01.524.027.0.0.20.0.080.050.0051.00.15.C99400remainder.0.090.55.01.03.01.03.50.52.00.500.52.0.C99500remainder.0.090.52.03.05.03.55.50.52.00.500.52.0.AIndeterminingcopperminimumcoppermaybecalculatedascopperp
41、lusnickel.BAntimony0.020.20,Boron0.00050.01.CItispossiblethatthemechanicalrequirementsofCopperAlloyUNSNo.C94700(heattreated)willnotbeobtainediftheleadcontentexceeds0.01%.DIroncontentshallnotexceedthenickelcontent.B763/B763M 13135.3 Separately cast test bar coupons representing castingsmade in Copper
42、 Alloy UNS Nos. C94700HT, C95300HT,C95400HT, C95410HT, and C95500HT shall be heat treatedwith the castings.6. Chemical Composition6.1 The castings shall conform to the requirements formajor elements shown in Table 2.6.2 These specification limits do not preclude the presenceof other elements. Limits
43、 may be established and analysisrequired for unnamed elements agreed upon between themanufacturer or supplier and the purchaser. Copper or zincmay be given as remainder and may be taken as the differencebetween the sum of all elements analyzed and 100 %. When allnamed elements in Table 2 are analyze
44、d, their sum shall be asspecified in Table 3.6.3 It is recognized that residual elements may be present incast copper alloys. Analysis shall be made for residual ele-ments only when specified in the purchase order.7. Mechanical Properties7.1 Mechanical properties shall be determined from sepa-rately cast test bars, and shall conform with the requirementsshown in Table 4.8. Sampling8.1 Copper Alloy UNS Nos. C86200, C86300, C86400,C86500, C86700, C95200, C95300, C95400, C95410,C95500, C95600, C95800, C99400, and C99500 test barcastings shall be cast to the form and dimensions shown inFigs. 1
