1、Designation: B121/B121M 11B121/B121M 16Standard Specification forLeaded Brass Plate, Sheet, Strip, and Rolled Bar1This standard is issued under the fixed designation B121/B121M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the y
2、ear 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 specification estab
3、lishes the requirements for copper-zinc-lead alloys (leaded brass) leaded brass plate, sheet, strip, androlled bar. The following alloys are covered:Nominal Composition, %Copper Alloy Previously UsedUNS No.2 Designation Copper Zinc Lead IronC33500 2 65.0 34.5 0.5 .C33500 2 63.5 36.0 0.5 .C34000 3 65
4、.0 34.0 1.0 .C34000 3 63.5 35.5 1.0 .C34200 5 65.0 33.0 2.0 .C34200 5 63.5 34.5 2.0 .C35000 . 61.5 37.4 1.1 .C35300 4 61.2 37.0 1.8 .C35300 4 61.5 36.7 1.8 .C35600 6 61.2 36.3 2.5 .C35600 6 61.5 36.0 2.5 .1.2 UnitsThe values Values stated in either inch-pound units or SI units are to be regarded sep
5、arately as standard. Within thetext, the SI units are shown in brackets. The values stated in each system aremay not be exact equivalents; therefore, each systemshall be used independently of the other. Combining values from the two systems may result in nonconformancenon-conformancewith the specifi
6、cation.standard.2. Referenced Documents2.1 The following documents in the current issue of Book of Standards form a part of this specification to the extent referencedherein:2.1 ASTM Standards:3B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and R
7、olled BarB248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar(Metric)B601 Classification for Temper Designations for Copper and Copper AlloysWrought and CastB846 Terminology for Copper and Copper AlloysE8E8/E8M Test Methods for Tension
8、Testing of Metallic MaterialsE8ME112 Test Methods for Tension Testing of Metallic Materials MetricDetermining Average Grain Size (Withdrawn 2008)E76E255 Test Methods for ChemicalAnalysis of Nickel-CopperAlloysPractice for Sampling Copper and CopperAlloys for theDetermination of Chemical Composition
9、(Withdrawn 2003)E478 Test Methods for Chemical Analysis of Copper AlloysE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)1 This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee
10、 B05.01 on Plate,Sheet, and Strip.Current edition approved Oct. 1, 2011April 1, 2016. Published November 2011April 2016. Originally approved in 1939. Last previous edition approved in 20062011 asB121/B121M 01 (2006).B121/B121M 11. DOI: 10.1520/B0121_B0121M-11. 10.1520/B0121_B0121M-16.2 The UNS syste
11、m for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of aprefix “C” and suffix “00.” The suffix can be used to accommodate composition variations of the base alloy3 For referencedASTM standards, visit theASTM
12、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.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indic
13、ation 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 as appropriate. In all cases only the current versionof the standard as published by ASTM is to be co
14、nsidered 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. United States13. General Requirements3.1 The following sections of SpecificationSpecifications B248 or B
15、248M constitute a part of this specification:3.1.1 TerminologyDefinitions,Terminology3.1.2 Materials and Manufacture,Manufacture3.1.3 Workmanship, Finish, and Appearance,Appearance3.1.4 Samplingexcept for chemical analysis,analysis3.1.5 Number of Tests and Retests,Retests3.1.6 Specimen Preparation,P
16、reparation3.1.7 Test Methodsexcept for chemical analysis,analysis3.1.8 Significance of Numerical Limits,Limits3.1.9 Inspection,Inspection3.1.10 Rejection and Rehearing,Rehearing3.1.11 Certification,Certification3.1.12 Test Reports (Mill),3.1.13 Packaging and Package Marking, andMarking3.1.14 Supplem
17、entary Requirements.Requirements3.2 In addition, when a section with a title identical to that referenced in 3.14.1 , above, appears in this specification, it containsadditional requirements,requirements which supplement those appearing in SpecificationSpecifications B248 or B248M.B121/B121M 1624. T
18、erminology4.1 DefinitionsFor standard definitions of terms related to copper and copper alloys, refer to Terminology B846.5. Ordering Information5.1 Orders for product should include the following information, Include the following specified choices when placing ordersfor product under this specific
19、ation, as applicable:5.1.1 ASTM designation and year of issue (issue,B121/B121M XX).5.1.2 Copper (alloy)Alloy UNS No. designation,5.1.3 Temper (Section 8),5.1.4 Dimensions: thickness and width (see (12.1.111.1.1 and 12.1.211.1.2),5.1.5 How furnished: straight lengths or coils,5.1.6 Quantitytotal wei
20、ght or total length or number of pieces of each size,5.1.7 Type of edge, if required: slit,required (slit, sheared, sawed, square corners, roundedround corners, rounded edges, orfull-rounded edges (see edges) (12.1.511.1.5),5.1.6 How furnished (straight lengths or coils),5.1.8 Lengths (see Length (1
21、2.1.311.1.3), and5.1.9 Weight: total for each size, andIntended application.5.2 In addition, when product is purchased for agencies of the U. S. government, it shall conform to the SupplementaryRequirements as defined in Specification The following options are available but may not be included unles
22、s specified at the timeof placing the order B248 or B248Mwhen specified in the contract or purchase order.required:5.2.1 Heat identification or traceability details.5.2.2 Certification,5.2.3 Mill Test Report,5.2.4 If product is purchased for agencies of the U. S. government (see the Supplementary Re
23、quirements section ofSpecifications B248 or B248M for additional requirements, if specified).6. Materials and Manufacture6.1 Material:Materials:6.1.1 The material of manufacture shall be a cast form (cast bar, cake, slab, and so forth, of copper alloyet cetera) of CopperAlloy UNS No. C33500, C34000,
24、 C34200, C35000, C35300, or C35600 as specified in the ordering information.of such purityand soundness as to be suitable for processing into the products prescribed herein.6.1.2 In the event When specified in the contract or purchase order that heat identification or traceability is required, thepu
25、rchaser shall specify the details desired.NOTE 1Because ofDue to the discontinuous nature of the processing of castings into wrought products, it is not always practical to identify a specificcasting analysis with a specific quantity of finished material.6.2 Manufacture:6.2.1 The product shall be ma
26、nufactured by such hot working, cold working, and annealing processes as to produce a uniformwrought structure in the finished product.6.2.2 The product shall be hot or cold worked to the finished size and subsequently annealed,annealed when required, to meetthe temper properties specified in the or
27、dering information.specified.6.2.3 EdgesSlit edges shall be furnished unless otherwise specified in the contract or purchase order.6.3 Edges:6.3.1 Slit edges shall be furnished unless otherwise specified in the contract or purchase order.7. Chemical Composition7.1 The materialsmaterial shall conform
28、 to the compositions prescribedcomposition requirements in Table 1. for the copperalloy UNS No. designation specified in the ordering informationTABLE 1 Chemical RequirementsCopper AlloyUNS No.CompositionCopper Lead Iron ZincC33500 62.065.0 0.250.7 0.10 max remainderC34000 62.065.0 0.81.5 0.10 max r
29、emainderC34200 62.065.0 1.52.5 0.10 max remainderC35000 60.063.0 0.82.0 0.10 max remainderC35300 60.063.0 1.52.5 0.10 max remainderC35600 60.063.0 2.03.0 0.10 max remainderB121/B121M 1637.2 These specificationcomposition limits do not preclude the presence of other elements. Limits for unnamed eleme
30、nts Byagreement between the manufacturer and purchaser, limits may be established by agreement between manufacturer or supplier andpurchaser. and analysis required for unnamed elements.7.3 Either For alloys in which zinc is listed as “remainder,” either copper or zinc may be taken as the difference
31、between thesum of results of all other elements analyzeddetermined and 100 %. When all elements in Table 1 are analyzed, their sumdetermined, the sum of the results shall be as shown in the table below. following table:Copper Alloy UNS No. Copper Plus NamedElements, % min.C33500 99.6C34000 99.6C3420
32、0 99.6C35000 99.6C35300 99.5C35600 99.58. Temper8.1 Rolled MaterialThe standard tempers of rolled product are as designated infor products described in this specification areTable 2given in Tables 2 and 3the column entitled “Temper Standard.” Special or nonstandard tempers are subject to negotiation
33、between manufacturer or supplier and purchaser8.1.1 Cold rolled tempers H01 and H10.8.1.2 Annealed tempers OS025 to OS070.8.2 Annealed MaterialThe standard tempers of annealed product are as designated in Table 3 in the column entitled “StandardTemper Designation.” Special or nonstandard tempers are
34、 subject to negotiation between manufacturer or supplier and purchaser.9. Mechanical Property Requirements9.1 Tensile Strength:9.1.1 Products ordered to this specification in inch-pound units shall be tested in accordance with Test Methods E8, and shallconform to tensile strength requirements prescr
35、ibed in ksi units in Table 2.9.1.2 Products ordered to this specification in SI units shall be tested in accordance with Test Methods E8M, and shall conformto tensile strength requirements prescribed in MPa units in Table 2.9.1.3 Acceptance or rejection of roll temper product based on mechanical pro
36、perties shall depend only on the tensile strength.9.2 Rockwell Hardness:9.2.1 Rockwell hardness tests offer a quick and convenient method of checking leaded brass of any temper for generalconformity to the requirements for tensile strength or grain size. The approximate Rockwell hardness values for
37、the rolled tempersare given in Table 2, and those for the annealed tempers of material 0.015 in. 0.381 mm and over in thickness are given in Table4 for general information and assistance in testing.9.2.2 Rockwell hardness test results shall not be used as a basis for product rejection.TABLE 2 Tensil
38、e Strength Requirements and Approximate Rockwell Hardness Values for Rolled TempersTemper ProductNOTE 1Plate is generally available in only the O60 (soft), H01 (quarter-hard), and H02 (half-hard) tempers. Required properties for other tempersshall be agreed upon between the manufacturer and the purc
39、haser at the time of placing the order.Temper DesignationA Tensile Strength Approximate Rockwell HardnessBStandardCode FormerName ksiC MPaD B Scale Superficial 30-TMin MaxCopper Alloy UNS Nos. C33500, C34000, C34200, C35000, C35300, and C35600H01 quarter-hard 49 340 59 405 4065 4360H02 half-hard 55
40、380 65 450 5774 5466H04 hard 68 470 78 540 7684 6873H06 extra-hard 79 545 89 615 8389 7376H08 springE 86 595 95 655 8792 7578H10 extra-springE 90 620 99 685 8893 7679H10 extra-springE 90 620 99 685 8893 7679A Standard designations defined in Classification B601.B Rockwell Hardness values apply as fo
41、llows:The B scale hardness values apply to metal 0.020 in. (0.508 mm)0.508 mm and over in thickness, andThe 30-T scale hardness values apply to metal 0.012 in. (0.305 mm)0.305 mm and over in thickness.C ksi = 1000 psi.D See Appendix.E Spring and extra spring temper are generally furnished only in al
42、loy No. 353.B121/B121M 1649. Grain Size for Annealed Tempers9.1 Grain size shall be the standard requirement for all productsproduct in the annealed tempers.9.2 Acceptance or rejection based upon grain size shall depend only on the average grain size of a test specimensspecimen takenfrom each of two
43、 sampling portionssample portions, and each specimen shall be within the limits prescribed in Table 3 whendetermined in accordance with Test Methods E112.9.3 Grain size shall be determined on a plane parallel to the flat surfaces of the product.11. Other Requirements11.1 Purchases for U.S. Governmen
44、t AgenciesWhen identified in the contract or purchase order, product purchased foragencies of the U.S. Government shall conform to the special government requirements stipulated in the supplementalrequirements given in Specification B248 or B248M.10. Mechanical Property Requirements10.1 Tensile Stre
45、ngth Requirements:10.1.1 Product furnished under this specification shall conform to the tensile requirements prescribed in Table 2 when tested inaccordance with Test Methods E8/E8M.10.1.2 Acceptance or rejection based on mechanical properties shall depend only on tensile strength.10.2 Rockwell Hard
46、ness:10.2.1 The approximate Rockwell hardness values given in Table 2 and Table 4 are for general information and assistance intesting, and shall not be used as a basis for product rejection.NOTE 2The Rockwell hardness test offers a quick and convenient method of checking for general conformity to t
47、he specification requirements fortemper, tensile strength, and grain size.TABLE 3 Grain Size Requirements for Annealed MaterialCopper AlloyUNS No.StandardTemperDesignationGrain Size, mmNominal Min MaxC33500,C34000,C34200,C35000,C35300,C35600J OS070OS050OS035OS0250.0700.0500.0350.0250.0500.0350.0250.
48、0150.1000.0700.0500.035TABLE 3 Grain Size Requirements for Annealed (OS) ProductCopper AlloyUNS No.StandardTemperDesignation(B601)Grain Size, mmNominal Min MaxhC33500,C34000,C34200,C35000,C35300,C35600J OS070OS050OS035OS0250.0700.0500.0350.0250.0500.0350.0250.0150.1000.0700.0500.035TABLE 4 Approxima
49、te Rockwell Hardness of Annealed MaterialNominal GrainSize, mmStandardTemperDesignationApproximate Rockwell HardnessAF Scale Superficial 30-TCopper Alloy UNS Nos.C33500, C34000, C34200, C35000,C35300, and C356000.070 OS070 5467 12270.050 OS050 6173 20350.035 OS035 6576 25380.025 OS025 6769 2742A Rockwell hardness values apply as follows:The F scale hardness values apply to metal 0.020 in. (0.508 mm)0.508 mm andover in thickness, andThe 30-T scale hardness values apply to metal 0.015
