1、Designation: B271/B271M 14aB271/B271M 15Standard Specification forCopper-Base Alloy Centrifugal Castings1This standard is issued under the fixed designation B271/B271M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of la
2、st 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 specification establishes re
3、quirements for centrifugal castings of copper-base alloys having the nominal compositionsshown in Table 1.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall
4、 be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.2. Referenced Documents2.1 The following documents in the current issue of the Book of Standards form a part of this specification to the extentreferenced herein:2.2 ASTM Standar
5、ds:2B208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and ContinuousCastingsB824 Specification for General Requirements for Copper Alloy CastingsB846 Terminology for Copper and Copper AlloysE10 Test Method for Brinell Hardness of Metallic Material
6、s2.3 ASME Code:3Boiler and Pressure Vessel Code3. Terminology3.1 Definitions of terms relating to copper alloys can be found in Terminology B846.4. Ordering Information4.1 Orders for centrifugal castings under this specification should include the following information:4.1.1 Specification title, num
7、ber, and year of issue,4.1.2 Quantity (length or number) of castings,4.1.3 Copper Alloy UNS Number (Table 1) and temper (as-cast, heat-treated, and so forth),4.1.4 Dimensions or drawing number and condition (as-cast, machined, and so forth),4.1.5 ASME Boiler and Pressure Vessel Code requirements (Se
8、ction 9),4.1.6 When castings are purchased for agencies of the U.S. Government, the Supplementary Requirements in SpecificationB824 may be specified.4.2 The following are optional and should be specified in the purchase order when required:4.2.1 Chemical analysis of residual elements (Section 6.3),4
9、.2.1 Pressure test or soundness requirements (Specification B824),1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on Castingsand Ingots for Remelting.Current edition approved Sept. 1, 2014July 1,
10、 2015. Published September 2014July 2015. Originally approved in 1954. Last previous edition approved in 2014 asB271/B271M 14.B271/B271M 14a. DOI: 10.1520/B0271_B0271M-14A.10.1520/B0271_B0271M-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at
11、serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http:/www.asme.org.This do
12、cument 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 editions a
13、s 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 19428-2959. Unit
14、ed States14.2.2 Approval of weld repair (Section 8),4.2.3 Certification (Specification B824),4.2.4 Foundry test report (Specification B824),4.2.5 Witness inspection (Specification B824),4.2.6 Product marking (Specification B824), and4.2.7 Castings for seawater service (Section X1.2).5. Materials and
15、 Manufacture5.1 Castings in Copper Alloy UNS No. C95520 are used in the heat treated condition only.6. Chemical Composition6.1 The centrifugal castings shall conform to the chemical requirement shown in Table 2 for the Copper Alloy UNS Numbersspecified in the purchase order.6.2 These specification l
16、imits do not preclude the presence of other elements. Limits may be established and analysis requiredfor unnamed elements agreed upon between the manufacturer or supplier and the purchaser. Copper or zinc may be given asremainder and may be taken as the difference between the sum of all elements ana
17、lyzed and 100 %. When all named elements inTable 2 are analyzed, their sum shall be as specified in Table 3.6.3 It is recognized that residual elements may be present in cast copper-base alloys. Analysis shall be made for residualelements only when specified in the purchase order.7. Mechanical Prope
18、rties7.1 Mechanical properties shall be determined from test bar castings cast in accordance with Practice B208 and shall meet therequirements shown in Table 4.TABLE 1 Nominal CompositionsClassification Copper AlloyUNS No. CommercialDesignation Copper Tin Lead Zinc Nickel Iron Alum-inum Mang-anese S
19、iliconLeaded red brass C83600 85-5-5-5 85 5 5 5 . . . . .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 . . . . .C84800 76-212-612-15 or semi-red brass 76 212 612 15 . . . . .Leaded yellow brass C85200 high copper yellow
20、brass 72 1 3 24 . . . . .C85400 commercial No. 1 yellow brass 67 1 3 29 . . . . .Yellow brass C85470A 62.5 2.5 . 34.3 . . 0.5 . .Leaded yellow brass C85700 leaded naval brass 61 1 1 37 . . . . .High-strength yellow brass C86200 high-strength manganese bronze 63 . . 27 . 3 4 3 .C86300 high-strength m
21、anganese bronze 61 . . 27 . 3 6 3 .C86400 leaded manganese bronze 58 1 1 38 . 1 12 12 .C86500 No. 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 4brass C87400 silicon brass 82 . 12 14 . . . . 3
22、12C87500 silicon brass 82 . . 14 . . . . 4C87600 silicon bronze 89 . . 6 . . . . 5Tin bronze and leaded C90300 88-8-0-4, or modified “G” bronze 88 8 . 4 . . . . .tin bronze C90500 88-10-0-2, or “G” bronze 88 10 . 2 . . . . .C92200 88-6-2-4 or “M” bronze 88 6 2 4 . . . . .C92300 87-8-1-4, or Navy PC
23、87 8 1 4 . . . . .High-lead tin bronze C93200 83-7-7-3 83 7 7 3 . . . . .C93500 85-5-9-1 85 5 9 1 . . . . .C93600 81-7-12 81 7 12 . . . . . .C93700 80-10-10 80 10 10 . . . . . .C93800 78-7-15 78 7 15 . . . . . .C94300 71-5-24 71 5 24 . . . . . .Aluminum bronze C95200 Grade A 88 . . . . 3 9 . .C95300
24、 Grade B 89 . . . . 1 10 . .C95400 Grade C 85 . . . . 4 11 . .C95410 84 . . . 2 4 10 . .C95900 82.5 . . . . 4.5 13 . .Nickel aluminum bronze C95500 Grade D 81 . . . 4 4 11 . .C95520 78.5 . . . 5.5 5.0 11 . .C95800 81.3 . . . 4.5 4 9 1.2 .Leaded nickel bronze C97300 12 % leaded nickel silver 57 2 9 2
25、0 12 . . . .C97600 20 % leaded nickel silver 64 4 4 8 20 . . . .C97800 25 % leaded nickel silver 66 5 2 2 25 . . . .A Phosphorus 0.13B271/B271M 152TABLE 2 Chemical RequirementsComposition, % max Except as IndicatedCopper AlloyUNS No. Copper Tin Lead Zinc IronNickel inclCobalt Aluminum Manganese Anti
26、mony Sulfur Phosphorus Other SiliconC83600 84.086.0 4.06.0 4.06.0 4.06.0 0.30 1.0A 0.005 . 0.25 0.08 0.05B . 0.005C83800 82.083.8 3.34.2 5.07.0 5.08.0 0.30 1.0A 0.005 . 0.25 0.08 0.03B . 0.005C84400 78.082.0 2.33.5 6.08.0 7.010.0 0.40 1.0A 0.005 . 0.25 0.08 0.02B . 0.005C84800 75.077.0 2.03.0 5.57.0
27、 13.017.0 0.40 1.0A 0.005 . 0.25 0.08 0.02B . 0.005C85200 70.074.0 0.72.0 1.53.8 20.027.0 0.6 1.0A 0.005 . 0.20 0.05 0.02 . 0.05C85400 65.070.0 0.501.5 1.53.8 24.032.0 0.7 1.0A 0.35 . . . . . 0.05C85470 60.065.0 1.04.0 0.09 Rem 0.20 . 0.101.0 . . . 0.020.25 . .C85700 58.064.0 0.501.5 0.81.5 32.040.0
28、 0.7 1.0A 0.8 . . . . . 0.05C86200 60.066.0 0.20 0.20 22.028.0 2.04.0 1.0A 3.04.9 2.55.0 . . . . .C86300 60.066.0 0.20 0.20 22.028.0 2.04.0 1.0A 5.07.5 2.55.0 . . . . .C86400 56.062.0 0.501.5 0.501.5 34.042.0 0.402.0 1.0A 0.501.5 0.101.5 . . . . .C86500 55.060.0 1.0 0.40 36.042.0 0.402.0 1.0A 0.501.
29、5 0.101.5 . . . . .C86700 55.060.0 1.5 0.501.5 30.038.0 1.03.0 1.0A 1.03.0 0.103.5 . . . . .C87300 94.0 min . 0.09 0.25 0.20 . . 0.81.5 . . . . 3.54.5C87400 79.0 min . 1.0 12.016.0 . . 0.8 . . . . . 2.54.0C87500 79.0 min . 0.09 12.016.0 . . 0.50 . . . . . 3.05.0C87600 88.0 min . 0.09 4.07.0 0.20 . .
30、 0.25 . . . . 3.55.5C90300 86.089.0 7.59.0 0.30 3.05.0 0.20 1.0A 0.005 . 0.20 0.05 0.05 . 0.005C90500 86.089.0 9.011.0 0.30 1.03.0 0.20 1.0A 0.005 . 0.20 0.05 0.05 . 0.005C92200 86.090.0 5.56.5 1.02.0 3.05.0 0.25 1.0A 0.005 . 0.25 0.05 0.05 . 0.005C92300 85.089.0 7.59.0 0.301.0 2.55.0 0.25 1.0A 0.00
31、5 . 0.25 0.05 0.05 . 0.005C93200 81.085.0 6.37.5 6.08.0 1.04.0 0.20 1.0A 0.005 . 0.35 0.08 0.15 . 0.005C93500 83.086.0 4.36.0 8.010.0 2.0 0.20 1.0A 0.005 . 0.30 0.08 0.05 . 0.005C93600 79.083.0 6.08.0 11.013.0 1.0 0.20 1.0A 0.005 . 0.55 0.08 0.15 . 0.005C93700 78.082.0 9.011.0 8.011.0 0.8 0.7C 0.50A
32、 0.005 . 0.50 0.08 0.10 . 0.005C93800 75.079.0 6.37.5 13.016.0 0.8 0.15 1.0A 0.005 . 0.8 0.08 0.05 . 0.005C94300 67.072.0 4.56.0 23.027.0 0.8 0.15 1.0A 0.005 . 0.8 0.08 0.05 . 0.005C95200 86.0 min . . . 2.54.0 . 8.59.5 . . . . . .C95300 86.0 min . . . 0.81.5 . 9.011.0 . . . . . .C95400 83.0 min . .
33、. 3.05.0 1.5 10.011.5 0.50 . . . . .C95410 83.0 min . . . 3.05.0 1.52.5 10.011.5 0.50 . . . . .C95500 78.0 min . . . 3.05.0 3.05.5 10.011.5 3.5 . . . . .C95520 74.5 min 0.25 0.03 0.30 4.05.5 4.26.0 10.511.5 1.5 . . . Cr 0.05Co 0.200.15C95800 79.0 min . 0.03 . 3.54.5D 4.05.0D 8.59.5 0.81.5 . . . . 0.
34、10C95900 rem. . . . 3.05.0 0.50 12.013.5 1.5 . . . . .C97300 53.058.0 1.53.0 8.011.0 17.025.0 1.5 11.014.0 0.005 0.50 0.35 0.08 0.05 . 0.15C97600 63.067.0 3.54.5 3.05.0 3.09.0 1.5 19.021.5 0.005 1.0 0.25 0.08 0.05 . 0.15C97800 64.067.0 4.05.5 1.02.5 1.04.0 1.5 24.027.0 0.005 1.0 0.20 0.08 0.05 . 0.1
35、5A In determining copper minimum copper may be calculated as copper plus nickel.B For Continuous Castings, P shall be 1.5 % max.C Iron shall be 0.35 % max. when used for Steel-backed.D Iron content shall not exceed nickel content.B271/B271M1538. Weld Repair8.1 The castings shall not be weld repaired
36、 without customer approval.9. ASME Requirements9.1 When specified in the purchase order to meet ASME Boiler and Pressure Vessel Code requirements castings in CopperAlloyUNS Nos. C95200 and C95400 shall comply with the following:9.1.1 Certification requirements of Specification B824.9.1.2 Foundry tes
37、t report requirements of Specification B824.9.1.3 Castings shall be marked with the manufacturers name, the Copper Alloy UNS No., and the casting quality factor. Inaddition, heat numbers or serial numbers that are traceable to heat numbers shall be marked on all pressure-containing castingsindividua
38、lly weighing 50 lb 22.7 kg or more. Pressure-containing castings weighing less than 50 lb 22.7 kg shall be markedwith either the heat number or a serial number that will identify the casting as to the month in which it was poured. Marking shallbe in such a position as to not injure the usefulness of
39、 the casting.10. General Requirements10.1 The following sections of Specification B824 form a part of this specification. In the event of a conflict between thisspecification and Specification B824, the requirements of this specification shall take precedence.10.1.1 Terminology,10.1.2 Other Requirem
40、ents,10.1.3 Dimensions, Mass, and Permissible Variations,10.1.4 Workmanship, Finish, and Appearance,10.1.5 Sampling,10.1.6 Number of Tests and Retests,10.1.7 Specimen Preparation,10.1.8 Test Methods,10.1.9 Significance of Numerical Limits,10.1.10 Inspection,10.1.11 Rejection and Rehearing,10.1.12 Ce
41、rtification,10.1.13 Test Report,10.1.14 Packaging and Package Marking, and10.1.15 Supplementary Requirements.11. Sampling11.1 Test bars shall be made in accordance with Practice B208.11.2 At the manufacturers option test bars may be removed from the casting instead of from a separately cast coupon.T
42、ABLE 3 Sum of All Named Elements AnalyzedCopper AlloyUNS No.Copper PlusNamed Elements% minCopper AlloyUNS No.Copper PlusNamed Elements% minC83600 99.3 C92200 99.3C83800 99.3 C92300 99.3C84400 99.3 C93200 99.2C84800 99.3 C93500 99.4C85200 99.1 C93600 99.3C85400 98.9 C93700 99.0C85470 99.5 C93800 98.9
43、C85700 98.7 C94300 99.0C86200 99.0 C95200 99.0C86300 99.0 C95300 99.0C86400 99.0 C95400 99.5C86500 99.0 C95410 99.5C86700 99.0 C95500 99.5C87300 99.5 C95520 99.5C87400 99.2 C95800 99.5C87500 99.5 C95900 99.5C87600 99.5 C97300 99.0C90300 99.4 C97600 99.7C90500 99.7 C97800 99.6B271/B271M 15411.3 Separ
44、ately cast test bars representing castings in CopperAlloy UNS Nos. C95300HT, C95400HT, C95410HT, C95500HT,C95520HT, C95800 temper annealed, and C95900 annealed shall be heat treated with the castings.12. Test Methods12.1 Analytical chemical methods are given in Specification B824.12.1.1 Test methods
45、 to be followed for the determination of elements resulting from contractual or purchase order agreementshall be as agreed upon between the manufacturer or supplier and the purchaser.12.2 Brinell hardness readings shall be taken on the grip end of the tension test bar and shall be made in accordance
46、 with TestMethod E10, with the exception that a 3000 kg load shall be used.13. Product Marking13.1 When specified in the purchase order the castings shall be marked with the alloy number.14. Keywords14.1 centrifugal castings; copper alloy castings; copper-base alloy castingsTABLE 4 Mechanical Requir
47、ementsCopper AlloyUNS No.Tensile Strength, min Yield Strength,A min Elongation in 2 in.or 50 mm, min, %Brinell Hardness No.B3000-kG Load, minksiC MPaD ksiC MPaDC83600 30 207 14 97 20 .C83800 30 207 13 90 20 .C84400 29 200 13 90 18 .C84800 28 193 12 83 16 .C85200 35 241 12 83 25 .C85400 30 207 11 76
48、20 .C85470 50 345 21 150 15 .C85700 40 276 14 97 15 .C86200 90 621 45 310 18 .C86300 110 758 60 414 12 .C86400 60 414 20 138 15 .C86500 65 448 25 172 20 .C86700 80 552 32 221 15 .C87300 45 310 18 124 20 .C87400 50 345 21 145 18 .C87500 60 414 24 165 16 .C87600 60 414 30 207 16 .C87610 45 310 18 124
49、20 .C90300 40 276 18 124 20 .C90500 40 276 18 124 20 .C92200 34 234 16 110 22 .C92300 36 248 16 110 18 .C93200 30 207 14 97 15 .C93500 28 193 12 83 15 .C93600 32 221 16 110 15 .C93700 30 207 12 83 15 .C93800 26 179 14 97 12 .C94300 24 165 . . 10 .C95200 65 450 25 170 20 110C95300 65 450 25 170 20 110C95300(HT) 80 550 40 275 12 160C95400 75 515 30 205 12 150C95400(HT) 90 620 45 310 6 190C95410 75 515 30 205 12 150C95410(HT) 9
