1、Designation: B 508 08Standard Specification forCopper Alloy Strip for Flexible Metal Hose1This standard is issued under the fixed designation B 508; 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification establishes the requirements for an-ne
3、aled copper-alloy strip for the manufacture of flexible metalhose produced from Copper Alloy UNS Nos. C41100 andC50500.1.1.1 The nominal compositions are as follows:Copper AlloyUNS No.Copper Zinc TinC41100 91.0 8.5 0.5C50500 98.7 . 1.31.2 The values stated in inch-pound units are to be regardedas st
4、andard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard. Grain size is given in SI units.1.3 The following precautionary statement pertains only tothe test method portion, Section 13, of this specification:
5、 Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documen
6、ts2.1 ASTM Standards:2B 601 Classification for Temper Designations for Copperand Copper AlloysWrought and CastB 846 Terminology for Copper and Copper AlloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE62 Test Methods for Chemical Analysis of Copp
7、er andCopper Alloys (Photometric Methods)E112 Test Methods for Determining Average Grain SizeE 255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE 478 Test Methods for Chemical Analysis of CopperAlloys3. Terminology3.1 Definitions:3.1.1 For definitions of
8、 terms related to copper and copperalloys, refer to Terminology B 846.4. Ordering Information4.1 Orders for product under this specification should in-clude the following information:4.1.1 ASTM designation and year of issue,4.1.2 Copper Alloy UNS No. (see Section 1 and Table 1),4.1.3 Temper (see 7.1
9、 and Table 2),4.1.4 Quantity, number of pieces or total weight of eachalloy and size, and4.1.5 DimensionsThickness and width; and length, ifapplicable (see 8.2 and 8.3).4.2 The following options are available and should bespecified at the time of placing the order, when required:4.2.1 How furnishedC
10、oils (inside and outside diameters),pounds per inch of width; stock or specific lengths, with orwithout ends;4.2.2 PackingType of pallet, skid, or box: interleaving,banding, maximum weight, and so forth; and4.2.3 Special surface condition requirements, if any (see9.3).5. Materials and Manufacture5.1
11、 Material:5.1.1 The material of manufacture shall be cast bar, slab,cake, billet, or so forth of Copper Alloy UNS No. C41100 orC50500 of such soundness as to be suitable for processing in tothe products prescribed herein.5.1.2 In the event heat identification or traceability isrequired, the purchase
12、r shall specify the details desired.NOTE 1Because of the discontinuous nature of the processing ofcastings into wrought products, it is not always practical to identifyspecific casting analysis with a specific quantity of finished material.1This specification is under the jurisdiction ofASTM Committ
13、ee B05 on Copperand Copper Alloys and is direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Current edition approved April 1, 2008. Published April 2008. Originallyapproved in 1969. Last previous edition approved in 2007 as B 508 07.2For referenced ASTM standards, visit the ASTM
14、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.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Ha
15、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 Manufacture: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
16、to the finishedsize and subsequently annealed, if required, to meet the temperproperties specified.5.2.3 EdgesSlit edges shall be furnished unless otherwisespecified in the contract or purchase order.6. Chemical Composition6.1 The material shall conform to the requirements pre-scribed in Table 1 for
17、 the alloy specified in the orderinginformation.6.2 These composition limits do not preclude the presenceof other elements. Limits for unnamed elements may beestablished and analysis required by agreement between themanufacturer or supplier and purchaser.6.3 Zinc, when given as the “remainder,” is t
18、he differencesbetween the sum of the results for all elements analyzed and100 %.6.3.1 Copper may be taken as the difference between thesum of all elements analyzed and 100 % and, when sodetermined, the difference value shall conform to the require-ments given in Table 1.6.4 When analyzed, the sum of
19、 results for all elements listedin Table 1 for Copper Alloy UNS C41100 shall be 99.7 %minimum and 99.5 % minimum for Copper Alloy UNSC50500.7. Grain Size of Annealed Tempers7.1 The average grain size of each of two samples ofannealed material, as determined on a longitudinal crosssection, shall be w
20、ithin the limit prescribed of the four nominalgrain sizes listed in Table 2 when tested in accordance withTest Method E112.7.2 In the case of thin-gage material 0.010 in. 0.25 mmand under, there shall exist no less than six grains per stockthickness, averaged for five locations one thickness apart.8
21、. Dimensions, Mass, and Permissible Variations8.1 GeneralFor the purpose of determining conformancewith the dimensional requirements prescribed in this specifi-cation, any measured value outside the specified limitingvalues for any dimension may be cause for rejection.8.2 ThicknessThe standard metho
22、d of specifying thick-ness shall be in decimal fractions of an inch. For material 0.021in. 0.533 mm and under in thickness, it is recommended thatthe nominal thickness be stated not closer than the nearest0.0005 in. 0.013 mm. For example, specify 0.006 or 0.0065in. 0.152 or 0.165 mm, but not 0.0063
23、in. 0.160 mm. Formaterial over 0.021 0.533 mm in thickness, it is recom-mended that the nominal thickness be stated not closer than thenearest 0.001 in. 0.025 mm. For example, specify 0.128 or0.129 in. 3.25 or 3.28 mm but not 0.1285 in. 3.26 mm.Alistof preferred thickness is shown in Appendix X1. Th
24、e thicknesstolerances shall be those shown in Table 3.8.3 WidthThe width tolerances shall be those shown inTable 4.8.4 StraightnessThe straightness tolerances shall be thoseshown in Table 5.9. Workmanship, Finish, and Appearance9.1 The product shall be uniform in quality and soundnessand free of int
25、ernal and external defects. However, surfaceblemishes that do not interfere with the intended applicationare acceptable.9.2 The product shall be well cleaned and free of dirt.9.3 A superficial film or residual light lubricant shall bepermissible, unless otherwise specified in the contract orpurchase
26、 order.10. Sampling10.1 The lot size, portion size, and selection of pieces shallbe as follows:10.1.1 Lot Size15 000 lb, 6825 kg, or less material ofthe same mill form, alloy, temper, and thickness, subject toinspection at one time.10.1.2 Portion SizeA portion shall be four or more piecesselected as
27、 to be representative of each lot. If the lot consists ofless than four pieces, representative samples shall be takenfrom each piece.10.2 Chemical AnalysisA sample for chemical analysisshall be taken and prepared in accordance with Practice E 255.10.2.1 Instead of sampling in accordance with Practic
28、eE 255, the manufacturer shall have the option of determiningconformance to chemical composition as follows: Conform-ance shall be determined by the manufacturer by analyzingsamples taken at the time the castings are poured or samplestaken from the semifinished product. If the manufacturerdetermined
29、 the chemical composition of the material during thecourse of manufacture, he shall not be required to sample andanalyze the finished product. The number of samples taken fordetermination of chemical composition shall be as follows:TABLE 1 Chemical RequirementsElementComposition, %Copper Alloy UNS N
30、os.C41100 C50500Copper 89.092.0 RemainderTin 0.300.7 1.01.7Phosphorus . 0.030.35Iron, max 0.05 0.10Lead, max 0.09 0.05Zinc remainder 0.30 maxTABLE 2 Grain Size RequirementsTemps StandardDesignationAGrain Size, mmNominal Minimum MaximumOS050 0.050 0.035 0.090OS035 0.035 0.025 0.050OS025 0.025 0.015 0
31、.035OS015 0.015B0.025AStandard designations defined in Classification B 601.BAlthough no minimum grain size is required, this material must be fullyrecrystallized.B50808210.2.1.1 When samples are taken at the time the castings arepoured, at least one sample shall be taken for each group ofcastings p
32、oured simultaneously from the same source ofmolten metal.10.2.1.2 When samples are taken from the semifinishedproduct, a sample shall be taken to represent each 10 000 lb4550 kg or fraction thereof, except that not more than onesample shall be required per piece.10.3 Grain SizeSamples for grain size
33、 shall be taken frommaterial in the finished condition. A sample shall be taken torepresent each 10 000 lb 4550 kg or fraction thereof, exceptthat not more than one sample shall be required per piece.11. Number of Tests and Retests11.1 Tests:11.1.1 Chemical composition shall be determined as theaver
34、age of results from at least two replicate determinations ofeach specified element.11.1.2 Other TestsFor other tests, test specimens shall betaken from two of the sample pieces selected in accordancewith 10.1.2. The required tests shall be made on each of thespecimens so selected.11.2 Retests:11.2.1
35、 When requested by the manufacturer or supplier, aretest shall be permitted should test results obtained by thepurchaser fail to conform to specification requirements.11.2.2 Retesting shall be as directed in the product specifi-cation for the initial test(s), except that the number of testspecimens
36、shall be twice that normally required for the test.11.2.3 Test results for all specimens shall conform to theproduct specification requirements in retest and failure toconform shall be cause for lot rejection.12. Specimen Preparation12.1 Chemical AnalysisPrepare a composite sample ofthe semifinished
37、 or finished product in accordance with Prac-tice E 255, or as described in 10.2. Preparation of the analyticalspecimen shall be the responsibility of the reporting laboratory.12.2 Prepare specimens in accordance with the methodprescribed in 13.2 for other tests. Use full cross-sectionspecimens when
38、ever possible. Samples shall be representativeof the condition of the material, and state particular specimenpreparation techniques in the specific product specification.TABLE 3 Thickness TolerancesThickness, in. mmThickness Tolerances, plus and minus,Ain.Copper Alloy UNS No. C41100 Copper Alloy UNS
39、 No. C505008 in. and under inWidth in. mmOver 8 to 14 in., inclin Width in. mmOver 14 to 20 in., inclin Width in. mm8 in. and under inWidth in. mmOver 8 to 14 in., inclin Width in. mmOver 14 to 20 in., inclin Width in. mm0.004 0.102 and under 0.0003 0.008 0.0006 0.015 . 0.0004 0.010 0.0008 0.020 .Ov
40、er 0.004 to 0.0060.102 to 0.152, incl0.0004 0.010 0.0008 0.020 0.0013 0.033 0.0006 0.015 0.0010 0.025 0.0015 0.038Over 0.006 to 0.0090.152 to 0.229, incl0.0006 0.015 0.0010 0.035 0.0015 0.038 0.0008 0.020 0.0013 0.033 0.002 0.051Over 0.009 to 0.0130.229 to 0.330, incl0.0008 0.020 0.0013 0.033 0.0018
41、 0.046 0.0010 0.025 0.0015 0.038 0.0025 0.064Over 0.013 to 0.0170.330 to 0.432, incl0.0010 0.028 0.0015 0.038 0.002 0.051 0.0013 0.033 0.002 0.051 0.0025 0.064Over 0.017 to 0.0210.432 to 0.533, incl0.0013 0.033 0.0018 0.046 0.002 0.051 0.0015 0.038 0.0025 0.064 0.003 0.076Over 0.021 to 0.0260.533 to
42、 0.660, incl0.0015 0.038 0.002 0.051 0.0025 0.064 0.002 0.051 0.0025 0.064 0.003 0.076Over 0.026 to 0.0370.660 to 0.940, incl0.002 0.051 0.002 0.051 0.0025 0.064 0.0025 0.064 0.003 0.076 0.0035 0.089Over 0.037 to 0.0500.940 to 1.270, incl0.002 0.051 0.0025 0.064 0.003 0.076 0.003 0.076 0.0035 0.089
43、0.004 0.102Over 0.050 to 0.0731.270 to 1.854, incl0.0025 0.064 0.003 0.076 0.0035 0.084 0.0035 0.089 0.004 0.102 0.0045 0.114Over 0.073 to 0.1301.854 to 3.302, incl0.003 0.076 0.0035 0.089 0.004 0.102 0.004 0.102 0.0045 0.114 0.005 0.127Over 0.130 to 0.1883.302 to 4.775, incl0.0035 0.089 0.004 0.102
44、 0.0045 0.114 0.0045 0.114 0.005 0.127 0.006 0.152AWhen tolerances are specified as all plus or all minus, double the values given.TABLE 4 Width TolerancesWidth, in. mmWidth Tolerances,Aplus and minus, in. mmFor Thicknesses0.004 0.102 mmto 0.032 in. 0.813mm, inclFor ThicknessesOver 0.032 0.813mm to
45、0.125 in.3.18 mm, inclFor ThicknessesOver 0.125 3.18mm to 0.188 in.4.78 mm, incl2 50.8 under 0.005 0.13 0.010 0.25 0.012 0.30Over 2 to 8 50.8 to203, incl0.008 0.20 0.013 0.33 0.015 0.38Over 8 to 20 203to 508, incl164 0.40164 0.40164 0.40AIf tolerances are specified as all plus or all minus, double t
46、he values given.TABLE 5 Straightness Tolerances for Silt MetalNOTE 1Maximum edgewise curvature (depth of arc) in any 72 in.1.82 m portion of the total length.Width, in. mmStraightness Tolerance, in.mmOver14 to38 6.35 to 9.53 incl 2 51Over38 to12 9.53 to 12.7 incl 112 38Over12 to 1 12.7 to 25.4 incl
47、1 25Over 1 to 2 25.4 to 50.8 incl58 16Over 2 to 4 50.8 to 102 incl12 13Over 4 10238 9.5B50808313. Test Methods13.1 Determine the chemical composition in case of dis-agreement, as follows:Element ASTM Test MethodCopper E 478Tin E 478 (Photometric flexible metal hoseB508084APPENDIXES(Nonmandatory Info
48、rmation)X1. PREFERRED THICKNESSX1.1 It is recommended that wherever possible, materialpurchased to this specification be ordered in thicknessesaslisted in Table X1.1.X2. STANDARD WEIGHTX2.1 For information purposes, for estimating weights,cross sections, and so forth, the density of Copper Alloy UNSNos. C41100 and C50500 are included in Table X2.1.TABLE X1.1 Preferred ThicknessesNOTE 1All values in inches millimetres.0.004 0.102 0.020 0.508 0.080 2.030.005 0.127 0.022 0.559 0.090 2.290.006 0.152 0.025 0.635 0.100 2.540.007 0.178 0.028 0.711 0.112 2.84
