ASTM B130-2002 Standard Specification for Commercial Bronze Strip for Bullet Jackets《弹头壳用商用青铜带材的标准规范》.pdf

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1、Designation: B 130 02Standard Specification forCommercial Bronze Strip for Bullet Jackets1This standard is issued under the fixed designation B 130; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe

2、r in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification establishes general requirements for(commercial bronze) strip for manufacture of bullet jacket cupsand ammunition compo

3、nents from Copper Alloy UNS No.C22000.21.2 Values stated in inch-pound units are to be regarded asthe standard except for grain size which is stated in metricunits. SI values given in parentheses are for information only.2. Referenced Documents2.1 The following documents of the issue in effect on da

4、teof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:B 248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBar3B 601 Classification for Temper Designations For Copperand Copper AlloysWrough

5、t and Cast3B 846 Terminology for Copper and Copper Alloys3E 3 Guide for Preparation of Metallographic Specimens4E 8 Test Methods for Tension Testing of Metallic Materials4E 18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic Materials4E 29 Practice for Using Significan

6、t Digits in Test Data toDetermine Conformance with Specification5E 112 Test Method for Determining Average Grain Size4E 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical Composition6E 478 Test Methods for Chemical Analysis of CopperAlloys6E 527 Practice for Numberin

7、g Metals and Alloys (UNS)73. Terminology3.1 For definition of terms related to copper and copperalloys, refer to Terminology B 846.4. Ordering Information4.1 Order for product under this specification should includethe following information:4.1.1 Specification designation and year of issue,4.1.2 Qua

8、ntity or weight for each size,4.1.3 Temper (Section 7),4.1.4 Grain size of annealed temper (optional) (Section 9),4.1.5 Dimensions: thickness, width, length, (Section 10),4.1.6 How furnished: straight lengths or coils,4.1.7 Heat identification or traceability, when required,4.1.8 Certification, when

9、 required, and4.1.9 Mill test report, when required.4.1.10 When material is purchased for agencies of the U.S.government, see Section 11.5. Materials and Manufacture5.1 Materials:5.1.1 The material of manufacture shall be a cast bar, cake,slab, and so forth of copper alloy UNS No. C22000 as specifie

10、din the ordering information.5.1.2 In the event that heat identification or traceability isrequired, the purchaser shall specify the details desired.NOTE 1Because of the discontinuous nature of the processing ofcastings into wrought products, it is not always practical to identify aspecific casting

11、analysis with a specific quantity of finished material.5.2 Manufacturer:5.2.1 The product shall be manufactured by such hot work-ing, cold working, and annealing processes as to produce auniform wrought structure in the finished product.5.2.2 The product shall be hot or cold worked to the finishedsi

12、ze and subsequently annealed, when required, to meet thetemper properties specified in the ordering information.5.2.3 EdgesSlit edges shall be furnished unless otherwisespecified in the contract or purchase order.1This specification is under the jurisdiction of ASTM Committee B05 on Copperand Copper

13、 Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Current edition approved Oct. 10, 2002. Published November 2002. Originallypublished as B 130 40 T. Last previous edition B 130 95.2Refer to Practice E 527 for an explanation of the unified numbering system(UNS

14、).3Annual Book of ASTM Standards, Vol 02.01.4Annual Book of ASTM Standards, Vol 03.01.5Annual Book of ASTM Standards, Vol 14.02.6Annual Book of ASTM Standards, Vol 03.06.7Annual Book of ASTM Standards, Vol 01.01.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Intern

15、ational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Chemical Composition6.1 The product shall conform to the composition pre-scribed in Table 1.6.2 These composition limits do not preclude the presenceof other elements. Limits for unnamed elements may bees

16、tablished and determination required by agreement betweenmanufacturer or supplier and purchaser.6.3 Either copper or zinc may be taken as the differencebetween the sum of all elements analyzed and 100 %. Copper,when determined by difference, must conform to the require-ments of Table 1. When all ele

17、ments are analyzed, their sumshall be 99.8 % min.7. Temper7.1 Tempers available under this specification, as defined inClassification B 601, are as follows:7.1.1 Cold-Rolled TempersFor cold rolled strip, a temperdesignation from Table 2 shall be specified.7.1.2 Annealed TempersFor annealed tempered

18、strip, atemper designation from Table 3 shall be specified.8. Mechanical Property Requirements8.1 Tensile Strength of Rolled TempersThe tension testshall be the standard test for all tempers of cold-rolled strip,and the acceptance or rejection. based upon mechanical prop-erties, shall depend only on

19、 the tensile strength which shallconform to the requirements prescribed in Table 2. Tension testspecimens shall be taken so the longitudinal axis is parallel tothe direction of rolling.8.1.1 Rockwell Hardness of Rolled TempersSince a Rock-well hardness test offers a quick and convenient method ofche

20、cking commercial bronze for general conformity to therequirements for tensile strength, the approximate Rockwellhardness values for each of the cold-rolled tempers are given inTable 2 for general information and assistance in testing.8.2 Tensile Strength of Annealed TempersAnnealed stripshall confor

21、m to the tensile property requirements prescribed inTable 4. Tension test specimens shall be taken so the longitu-dinal axis is parallel to the direction of rolling.9. Grain Size of Annealed Tempers9.1 In addition to the tensile properties prescribed in Table4 for strip, grain size may also be speci

22、fied by the purchaser.When grain size is specified, the average grain size of theannealed strip shall be within the limits prescribed in Table 3.At a magnification of 753, the average grain size of selectedareas 79.8 mm in diameter of each of two samples of annealedstrip shall be determined on a pla

23、ne parallel to the surface ofthe strip.10. Dimensions, Mass, and Permissible Variations10.1 ThicknessThe standard method of specifying thick-ness shall be in decimal fractions of an inch. The tolerancesshall be as shown in Table 5.10.2 WidthThe width tolerances of strip metal shall be asprescribed i

24、n Table 6.10.3 LengthThe strip shall be furnished in straight lengthsor in coils (rolls), as specified. Rolls shall consist of not morethan three lengths, no one of which shall be less than 10 ft (3.05m) in length. The tolerances for straight lengths shall be asprescribed in Table 7.10.3.1 Stock Len

25、gthsWhen furnished in stock lengthswith short lengths included, the schedule of short lengths shallbe as prescribed in Table 8.10.3.2 Special LengthWhen special lengths are required,they shall be specified in the order.NOTE 2For the purpose of determining conformance with the dimen-sional requiremen

26、ts prescribed in this specification, any measured valueoutside the specified limiting values for any dimension may be cause forrejection.10.4 Straightness TolerancesThe straightness tolerancesshall be as prescribed in Table 9.11. Purchases for the U.S. Government11.1 When specified in the contract o

27、r purchase order,product purchased for agencies of the U.S. Government shallconform to the special government regulations specified in theSupplemental Requirements section as defined in the currentissue of Specification B 248.12. Workmanship, Finish, and Appearance12.1 The material shall be free of

28、defects, but blemishes ofa nature that do not interfere with normal commercial opera-tions are acceptable. It shall be well-cleaned and free of dirt. Asuperficial film or residual light lubricant is normally presentand is acceptable unless otherwise specified.12.2 The surface finish and appearance s

29、hall be the normalcommercial quality for the alloy, thickness, and temper or-dered. When application information is provided with purchaseorder, the surface shall be that commercially producible for theapplication. Superficial films of discoloration, or lubricants, ortarnish inhibitors are permissib

30、le unless otherwise specified.13. Sampling13.1 SamplingThe lot size, portion size, and selection ofsample pieces shall be as follows:13.1.1 Lot Size40 000 lb (18 144 kg) or less material ofthe same mill form, temper, and thickness, subject to inspectionat one time.13.1.2 Portion SizeSample pieces sh

31、all be selected fromeight individual pieces and shall be taken so as to be represen-tative of those pieces. If the lot consists of less than eightpieces, a sample shall be taken from each individual piece.13.2 Chemical Analysis:13.2.1 The sample for chemical analysis shall be taken inaccordance with

32、 Practice E 255 for product in its final formtaken from the pieces selected in 13.1.2 and combined into oneTABLE 1 Chemical RequirementsCopper Alloy UNS No. C22000Element CompositionCopper 89.091.0Lead, max 0.05Iron, max 0.05Bismuth, max 0.006Zinc remainderB130022composite sample. The minimum weight

33、 of the compositesample shall be 150 g.13.2.2 Instead of sampling as directed in 13.2.1, the manu-facturer shall have the option of sampling at the time thecastings are poured or samples taken from the semifinishedproduct. If the manufacturer determines the chemical compo-sition of the material duri

34、ng the course of manufacture, he shallnot be required to sample and analyze the finished product.13.2.2.1 When samples are taken at the time the castings arepoured, at least one sample shall be taken from each group ofcastings poured from the same source of molten metal.13.2.2.2 When samples are tak

35、en from semifinished prod-uct, a sample shall be taken to represent each 10 000 lbs (5000kg) or fraction thereof, except that no more than one sampleshall be required per piece.13.2.2.3 Only one sample need be taken from the semifin-ished product of one cast bar from a single melt chargecontinuously

36、 processed.13.3 Samples for All Other TestsSamples for all othertests shall be taken from the sample portions selected in 13.1.2and be of an convenient size to accomodate the test and complywith the requirements of the appropriate product specificationand test method.14. Number of Tests and Retests1

37、4.1 Test:14.1.1 Chemical Requirements:14.1.2 When samples are taken at the time the castings arepoured, at least one sample shall be analyzed for each group ofcastings poured simultaneously from the same source ofmolten metal.14.1.3 When samples are taken from the semifinished orfinished product, at

38、 least one sample representative of theproduct of each cast bar from a single melt charge continuouslyprocessed with heat identity maintained shall be analyzed.14.2 Mechanical Properties and Grain SizeUnless other-wise provided in the product specification, test specimens shallbe taken from two of t

39、he sample pieces selected in accordancewith 13.1.2. The required tests shall be made on each of thespecimens so selected.14.3 Other TestsFor other tests, test specimens shall betaken from four of the sample pieces selected in accordancewith 13.1.2. The required tests shall be made on each of thespec

40、imens so selected.14.4 Retests:14.4.1 If the chemical analysis of the specimens preparedfrom samples selected in accordance with 13.1.2 fails toconform to the specified limits, analysis shall be made on anew composite sample prepared from the pieces selected inaccordance with 13.1.2.14.4.2 If one of

41、 the two tests made to determine any of themechanical or grain size requirementss fails to meet a specifiedlimit, this test shall be repeated on the remaining pieces,maximum of two, selected in accordance with 13.1.2, and theresults of both of these tests shall comply with the specifiedrequirements.

42、TABLE 2 Tensile Strength Requirements and Approximate Rockwell Hardness Values for Cold-Rolled StripRolled Temper Designation Tensile Strength, ksiA(MPaB) Approximate Rockwell HardnessCStandard Former Min Max B Scale Superficial 30-TH01 Quarter-hard 40 (275) 50 (345) 2756 3454H02 Half-hard 47 (325)

43、57 (395) 5066 5061H03 Three-quarter hard 52 (355) 62 (425) 5971 5564H04 Hard 57 (395) 66 (455) 6575 6067H06 Extra-hard 64 (440) 72 (495) 7279 6469H08 Spring 69 (475) 77 (530) 7681 6770H10 Extra-spring 72 (495) 80 (550) 7883 6871Aksi = 1000 psi.BSee Appendix X1.CRockwell hardness values apply as foll

44、ows: The B scale applies to metal 0.020 in. (0.058 mm) in thickness and over; the 30-T scale applies to metal 0.012 in.(0.305 mm) in thickness and over.TABLE 3 Grain Size Requirements of Annealed StripAnnealed Temper Designation Grain Size, mmStandardNominalAverageMin MaxOS015 0.015A0.025OS025 0.025

45、 0.015 0.040OS035 0.035 0.025 0.050AAlthough no minimum grain size is required, this material must be fullyrecrystallized.TABLE 4 Tension Test Requirements of Annealed StripAnnealed TemperDesignationThickness of Annealed Tempers,in. (mm)Tensile Strengthmin. ksiA(MPaB)Elongation in2 in.(50.8 mm),min,

46、 %StandardOS0150.005 to 0.010 (0.127 to 0.254),incl38 (260) 15Over 0.010 to 0.050 (0.254 to1.27), incl38 (260) 25Over 0.050 to 0.100 (1.27 to2.54), incl38 (260) 27Over 0.100 (2.54) 38 (260) 30OS0250.005 to 0.010 (0.127 to 0.254),incl36 (250) 20Over 0.010 to 0.050 (0.254 to1.27), incl36 (250) 30Over

47、0.050 to 0.100 (1.27 to2.54), incl36 (250) 32Over 0.100 (2.54) 36 (250) 35OS0350.005 to 0.010 (0.127 to 0.254),incl34 (240) 25Over 0.010 to 0.050 (0.254 to1.27), incl34 (240) 35Over 0.050 to 0.100 (1.27 to2.54), incl34 (240) 38Over 0.100 (2.54) 34 (240) 40Aksi = 1000 psi.BSee Appendix X1B13002314.4.

48、3 If any test specimen shows defective machining ordevelops flaws, it may be discarded and another specimensubstituted.14.5 Chemical AnalysisChemical analysis shall be deter-mined as the average of at least two replicate determinationsfor each element specified.15. Specimen Preparation15.1 In the gr

49、ain size test, all specimens shall be prepared asspecified in Guide E 3.15.2 In the tension test, all strip less than34 in.-wide shall bepulled in full size when practicable. Machined test specimensshall be as specified in Test Method E 8, Fig. 1, for sheet typespecimens.15.3 Chemical CompositionThe composite sample forlaboratory analysis shall, in case of disagreement, be preparedin accordance with Practice E 255.16. Test Methods16.1 The properties and chemical compositions enumeratedin this specification shall, in case of disagreement, be dete