1、Designation: B 694 03Standard Specification forCopper, Copper-Alloy, Copper-Clad Bronze (CCB), Copper-Clad Stainless Steel (CCS), and Copper-Clad Alloy Steel(CAS) Sheet and Strip for Electrical Cable Shielding1This standard is issued under the fixed designation B 694; the number immediately followin
2、g the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number 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
3、 establishes the requirements of cop-per, copper alloy, copper-clad bronze (CCB), copper-cladstainless steel (CCS), and copper-clad alloy steel (CAS)materials, sheet, and strip, in various thicknesses, for use aselectrostatic or electromagnetic shielding for insulated power,control, instrumentation,
4、 and communication cables.NOTE 1See Specification B 736, for related standards for aluminum-based shielding materials.1.2 The products covered are the following:Copper or Copper AlloyUNS No.Type of ProductsC11000 copperC19400 copper-iron alloyC22000 copper-zinc alloy (commercial bronze)C23000 copper
5、-zinc alloy (red brass)C66400 copper-zinc-iron-cobalt alloyC66410 copper-zinc-iron alloyC66430 copper-zinc-iron-tin alloyC71000 cupro-nickel 20 %. copper-clad bronze (CCB). copper-clad stainless steel (CCS). copper-clad alloy steel (CAS)1.3 The values stated in inch-pound units are the standard,exce
6、pt for temperature and grain size which are given in SIunits. Values in parentheses are for information only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety
7、 and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:A 176 Specification for Stainless and Heat-Resisting Chro-mium Steel Plate, Sheet, and StripA 505 Specification for Steel, Sheet and Strip, Alloy, Hot-Rolled and Co
8、ld-Rolled, General Requirements forB 152/B 152M Specification for Copper Sheet, Strip, Plate,and Rolled BarB 248 Specification for General Requirements for WroughtCopper and Copper-Alloy Plate, Sheet, Strip, and RolledBarB 601 Classification for Temper Designations for Copperand Copper AlloysWrought
9、 and CastB 736 Specification for Aluminum, Aluminum Alloy, andAluminum-Clad Steel Cable Shielding StockB 846 Terminology for Copper and Copper AlloysE 3 Guide for Preparation of Metallographic SpecimensE 8 Test Methods for Tension Testing of Metallic MaterialsE 54 Test Methods for Chemical Analysis
10、of SpecialBrasses and BronzesE 62 Test Methods for Chemical Analysis of Copper andCopper Alloys (Photometric Methods)E 75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc AlloysE 112 Test Methods for Determining Average Grain SizeE 255 Practice for Sampling Copper and Copper
11、 Alloys forDetermination of Chemical CompositionE 478 Test Methods for Chemical Analysis of CopperAlloys2.2 International Standards Organization (ISO) Standards:ISO 3110/2 Determination of Aluminum; Flame AtomicAbsorption Spectrometric Method (TC/26 Ref. No. N698E/F)23. General Requirements3.1 The f
12、ollowing sections of Specification B 248 constitutea part of this specification:3.1.1 TerminologyDefinitions,3.1.2 Materials and Manufacturing,3.1.3 Workmanship, Finish, and Appearance,3.1.4 Samplingexcept for chemical analysis,3.1.5 Number of Tests and Retests,3.1.6 Specimen Preparation,1This speci
13、fication is under the jurisdiction of ASTM Committee B05 on Copperand Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,Sheet, and Strip.Current edition approved Oct. 1, 2003. Published November 2003. Originallyapproved in 1981. Last previous edition approved in 2002 as
14、B 694 02.2Available from American National Standards Institute, 25 W. 43rd St., 4thFloor, New York, NY 10036.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.7 Test
15、 Methodsexcept for chemical analysis,3.1.8 Significance of Numerical Limits,3.1.9 Inspection,3.1.10 Rejection and Rehearing,3.1.11 Certification,3.1.12 Test Reports (Mill),3.1.13 Packaging and Package Marking, and3.1.14 Supplementary Requirements.3.2 In addition, when a section with a title identica
16、l to thatreferenced in 3.1 appears in this specification, it containsadditional requirements, which supplement those appearing inSpecification B 248.4. Terminology4.1 For definitions of terms relating to copper and copperalloys, refer to Terminology B 846.4.1.1 cladding ratio, nratio by percent thic
17、kness of thecomponent layers, for example, 16/68/16.5. Ordering Information5.1 Orders for material should include the following infor-mation:5.1.1 ASTM designation and year of issue,5.1.2 Quantity: total for each item, pounds (or kilograms),5.1.3 Name of material: cable shielding (or “cable wrap”),5
18、.1.4 Form of material: strip,5.1.5 Type of material: copper, copper-zinc alloy (commer-cial bronze), and so forth (see 1.2),5.1.6 Alloy number when appropriate (see 1.2),5.1.7 Temper (see Section 8),5.1.8 Dimensions: thickness and width (see Section 11),5.1.9 How furnished: coils (rolls), traverse w
19、ound on reelsor spools, and so forth,5.1.10 Whether the resistivity test is required for any item(Section 10),5.1.11 Coil dimension: inner or outer coil diameter limita-tion, or both, if required,5.1.12 Weight of coils: coil weights or coil size limitations,if required,5.1.13 Cladding ratio when app
20、ropriate (see 7.5.4),5.1.14 Certification, if required, (see Section 18),5.1.15 Mill test report, if required,5.1.16 Specification designation and year of issue, and5.1.17 Special tests or exceptions, if any.6. Materials and Manufacture6.1 MaterialThe material shall be of such quality that itconform
21、s to the properties and characteristics prescribed in thespecification.6.2 ManufactureCladding metals as appropriate may bebonded to the specified base metal by any method that willproduce a clad material that will conform to this specification.7. Chemical Composition7.1 Homogeneous copper and coppe
22、r-alloy materials shallconform to the requirements prescribed in Table 1 for theparticular material.7.2 Copper cladding shall be, unless otherwise specified, acopper conforming in chemical composition to that covered bySpecification B 152/B 152M. The grade provided shall be oneof the following coppe
23、rs, such that the final strip meets theconductivity and mechanical properties of this specification.These are:C10920C11000C11020C120007.3 These specification limits do not preclude the possiblepresence of other unnamed elements. Limits may be estab-lished and determination required for unnamed eleme
24、nts byagreement between the manufacturer and the purchaser.7.4 Except for copper C11000, copper may be taken as thedifference between all the elements analyzed and 100 %.TABLE 1 Chemical RequirementsElementComposition, %Copper or Copper Alloy UNS No.C11000 C19400 C22000 C23000 C66400 C66410 C66430 C
25、71000C64785core ofCopper-CladBronzeCopper (inclsilver)99.90 min 97.0 min 89.0091.0 84.086.0 remainder remainder remainder remainder remainderIron . 2.12.6 0.05max0.05max1.31.7 1.82.3 0.60.9 1.0 max 0.02 maxLead, max . 0.03 0.05 0.05 0.015 0.015 0.05 0.05 0.015Tin . . . . 0.05max0.05max0.60.9 . 0.52.
26、0Zinc . 0.050.20 remainder remainder 11.012.0 11.012.0 13.015.0 1.0 max 3.06.0Nickel (inclcobalt). . . . . . . 19.023.0 0.41.6Manganese . . . . . . . 1.0 max 0.21.0Phosphorus . 0.0150.15 . . . . 0.10max. 0.015 maxCobalt . . . . 0.300.7 . . . .Iron and cobalt . . . . 1.82.3 . . . .Silicon . . . . . .
27、 . . 0.15 maxAluminum . . . . . . . . 3.06.0B6940327.4.1 Alloys C19400, C22000, and C23000When all ele-ments specified in Table 1 are determined, the sum of theresults shall be 99.8 % min.7.4.2 Alloys C66400, C66410, C66430, C64785, andC71000When all elements specified in Table 1 are deter-mined, th
28、e sum of the results shall be 99.5 % min.7.5 Clad Metal:7.5.1 For stainless steel clad cores, the stainless steel shallconform in chemical composition to one covered by Specifi-cation A 176. Unless otherwise specified, stainless steel inaccordance with UNS No. S43000 (Type 430) shall be sup-plied.7.
29、5.2 For alloy steel clad cores, the steel shall conform inchemical composition to one covered by Specification A 505.Unless otherwise specified, alloy steel UNS No. G41300 shallbe supplied.7.5.3 For bronze clad cores, the bronze shall conform inchemical composition to the requirements of UNS No. C64
30、785listed in Table 1.7.5.4 Unless otherwise stated (see 5.1.13), the cladding ratioshall be one of the standard ratios listed in Table 2 and Table3, and shall be expressed as XX/XX/XX, copper/bronze/copper, copper/stainless steel/copper, or copper/alloy steel/copper as appropriate.8. Temper8.1 As de
31、scribed in Classification B 601, tempers furnishedto this specification shall be:8.1.1 Copper C11000H00, H01, H02, and O61.8.1.2 Copper alloy C19400H02, O61, and O50.8.1.3 Copper alloy C22000H01, H02, and O81.8.1.4 Copper alloy C23000H01, H02, and O81.8.1.5 Copper alloy C66400, C66410, and C66430O60
32、.8.1.6 Copper alloy C71000H01, H02, OS035, andOS015.8.1.7 Copper-Clad SteelO61.8.1.8 Copper-Clad BronzeO61 and O81.9. Mechanical Property Requirements9.1 Grain Size:9.1.1 There are no minimum or maximum grain size re-quirements for product in annealed tempers O50, O61, andO81; however, the metal sha
33、ll be fully recrystallized.9.1.2 When tested in accordance with Test Methods E 112,copper alloy UNS No. C71000 in annealed tempers OS035 andOS015 shall conform to the grain size requirements prescribedin Table 2.9.2 Hardness:9.2.1 Rockwell HardnessThe hardness test is a quick andconvenient method fo
34、r estimating tensile strength and grainsize. Approximate hardness values are given in Table 2. Forcopper-clad materials, copper is etched off with a suitablereagent before testing the steel. This test is not required andshall not be used as a basis of rejection.9.3 Tensile StrengthThe finished produ
35、ct shall conform tothe requirements prescribed in Table 2 for the particularmaterial and temper.10. Physical Property Requirements10.1 Annealed material shall conform to the requirements ofTable 4.11. Dimensions, Mass, and Permissible Variations11.1 GeneralFor the purpose of determining conformancew
36、ith the dimensional requirements prescribed in this specifi-cation, any measured value outside the specified limitingvalues for any dimension may be cause for rejection.11.2 ThicknessThe standard method of specifying thick-ness shall be in decimal fractions of an inch. For material 0.021in. (0.53 mm
37、) and under in thickness, it is recommended thatthe nominal thickness be stated not closer than the nearesthalf-thousandth. (For example, specify 0.006 or 0.0065 in.(0.15 or 0.165 mm), but not 0.0063 in. (0.160 mm).) A list ofpreferred thicknesses is shown in Appendix X2. The thicknesstolerance shal
38、l be those shown in Table 5 and Table 6.11.3 WidthThe width tolerances shall be those required bySpecification B 248, unless otherwise stated in the purchaseorder.11.4 StraightnessThe straightness tolerances shall bethose required by Specification B 248, unless otherwise statedin the purchase order.
39、11.5 Cladding RatioCladding ratios shall be within610 % of nominal; test method shall be metallurgical micro-section of at least three samples per lot.12. Workmanship, Finish, and Appearance12.1 All material shall be uniform in quality and condition,sound and free of internal and external defects of
40、 a nature thatinterferes with normal fabrication or the performance of thecable shielding. It shall be well cleaned and free of dirt. Asuperficial film of residual light lubricant is permissible, unlessotherwise specified.12.2 Copper-clad material shall be free of defects includingunbond or delamina
41、tion of a nature that interferes with normalcommercial operations.13. Sampling13.1 Chemical Composition for Copper and Copper Alloys:13.1.1 Instead of sampling in accordance with PracticeE 255, the manufacturer shall have the option of sampling atthe time castings are poured or from the semifinished
42、 orfinished product.13.1.1.1 When sampled at the time castings are poured, atleast one sample shall be taken for each group of castingspoured simultaneously from the same source of molten metal.13.1.1.2 When sampled from a semifinished or finishedproduct, at least one sample representative of the pr
43、oduct ofeach cast bar from a single melt charge continuously processedwith heat identity maintained shall be taken.13.1.1.3 When sampled from semifinished or finished prod-uct when heat identity has not been maintained, a single samplerepresentative of each 10 000-lb lot, or fraction thereof, shallb
44、e taken. When the product piece is greater than 10 000 lb, onesample to be representative of the product piece shall be taken.13.2 Clad Metal:B69403313.2.1 When materials of fabrication have been certified tomeet the requirements of the specification to which they wereordered, sampling by the fabric
45、ation is not required unlessspecified otherwise in the contract or purchase order.TABLE 2 Tensile Strength Requirements and Approximate Hardness Values for Shielding Materials in Commonly Ordered TempersDescription Temper Designation Tensile Strength, ksiA(MpaB) Approximate Rockwell HardnessCCopper
46、or CopperAlloy UNS No.Type of Material Standard Former Min MaxOther ScalesThicknesses0.020 in.Superficial 30TThicknesses0.012 in.Cold-Rolled Tempers:C11000 Copper H00 eighth hard 32 (220) 40 (275) F 5482 up to 49H01 quarter hard 34 (235) 42 (290) F 6084 1851H02 half hard 37 (255) 46 (315) F 7789 435
47、7Annealed Tempers:O61 annealed . 34 (235) . .Annealed Tempers:C19400 Copper-iron alloy O61 annealedD45 (310) 55 (380) . .O50 light annealedD50 (345) 60 (415) . .Cold-Rolled Tempers:H02 half hard 53 (365) 63 (435) B 4969 5263Cold-Rolled Tempers:C22000 Commercial bronze H01 quarter hard 40 (275) 50 (3
48、45) B 2752 3853H02 half hard 47 (325) 57 (395) B 5063 5261Annealed Tempers:O81 quarter hard 39 (270) 46 (315) . .Cold-Rolled Tempers:C23000 Red brass H01 quarter hard 44 (305) 54 (375) B 3358 4560H02 half hard 51 (350) 61 (420) B 5668 5866Annealed Tempers:O81 quarter hard 44 (305) 54 (375) . .Anneal
49、ed Tempers:C66400 Copper-zinc-iron-cobalt alloy O60 softD53 (365) 60 (415) . .C66410 Copper-zinc-iron alloy O60 softD53 (365) 60 (415) . .C66430 Copper-zinc-iron-tin alloy O60 softD59 (405) 69 (475) . 5969Cold-Rolled Tempers:C71000 Cupro-nickel 20 % H01 quarter hard 47 (325) 63 (435) B 4572 4665H02 half hard 56 (385) 70 (485) B 6478 5969Annealed Tempers:OS035 0.0250.050 mm 52 (355) . B 1835 2840OS015 0.0100.020 mm 53 (365) . B 3588 4058Copper-Clad Stainless (CCS) and Copper-Clad Alloy Steel (CAS)CladdingRatioTotal T
