ASTM A459-2008 Standard Specification for Zinc-Coated Flat Steel Armoring Tape《镀锌平轧扁钢铠装带标准规格》.pdf

1、Designation: A 459 08Standard Specification forZinc-Coated Flat Steel Armoring Tape1This standard is issued under the fixed designation A 459; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in p

2、arentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers requirements for zinc-coatedflat steel tape in coils for use as interlocking armor and flatarmor for electrical cables.

3、The zinc-coated tape is producedwith three classes of zinc coating weight.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenc

4、ed Documents2.1 ASTM Standards:2A 90/A 90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA 902 Terminology Relating to Metallic Coated Steel Prod-uctsB6 Specification for Zinc3. Terminology3.1 DefinitionsSee Terminology A 902 for definitions ofgener

5、al terminology relating to metallic-coated steel products.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Quantity of each size,4.1.2 Width and thickness (see 13),4.1.3 Class of coating (see 11), and4.1.4 Packaging requirements (se

6、e 17).5. Materials and Manufacture5.1 The base metal shall be steel made by the basic-oxygen,or electric-furnace process and of such quality that whenprocessed and coated with zinc, the finished tape shall have theproperties and characteristics prescribed in this specification.5.2 The uncoated tape

7、shall have a mill finish and may haveeither a mill or slit edge. If the uncoated tape is manufacturedby slitting or shearing, slitting burrs shall be kept to a minimumconsistent with good commercial practice.5.3 The zinc shall be applied by either the hot-dip or theelectrogalvanizing process by a fi

8、nal operation so that allsurfaces including edges are coated.5.4 The slab zinc when used shall conform to any grade ofzinc described in Specification B6.6. Joints6.1 The zinc-coated tape shall be furnished in coils of onecontinuous length, with not more than an average of oneweld/50 lb (23 kg). Only

9、 welds made prior to the zinc coatingoperation shall be permitted and the area of such welds shallconform to the standard tolerance for thickness. The weldsshall be smooth and free of sharp projections.7. Sampling7.1 During the visual inspection specified in Section 16, theinspector shall select at

10、random, 1 sample coil from every 10coils in the first 100 coils of the lot and 1 sample coil for everyadditional 35 coils, but not less than 3 coils from the entire lot.7.2 From each coil of zinc-coated tape thus selected, asample of suitable length shall be taken for the weight ofcoating and the me

11、chanical tests as specified in Sections 8 to12.7.3 Any sample that indicates the presence of a weld shallbe discarded and another sample shall be taken from the coilfor testing.8. Tensile Strength8.1 The zinc-coated tape shall have a tensile strength of 70ksi (483 MPa), maximum. The tensile strength

12、 shall bedetermined on longitudinal specimens consisting of the fullwidth of the tape when practical, or a straight specimen cut orsheared from the center of the tape.9. Elongation9.1 The zinc-coated tape shall have an elongation of not lessthan 10 % in 10 in. (254 mm). The elongation shall bedeterm

13、ined as the permanent increase in length, after failure ofa marked section of the tape specimen originally 10 in. inlength.1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.11 on Sheet Spe

14、cifications.Current edition approved May 1, 2008. Published May 2008. Originallyapproved in 1961. Last previous edition approved in 2003 as A 459 97 (2003).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of AST

15、MStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.10. Ductility10.1 The tape shall be capable of being bent flat on itself,either lengthwise

16、 or crosswise, without indication of failure.There shall be no base metal cracks along any bend visible tothe naked eye. Cracks at sheared edges and coarse grains on thebends of any specimens may be disregarded. Flaking orcracking of the galvanized finish shall not be interpreted as afailure of the

17、material.11. Weight of Coating11.1 The weight of zinc coating shall not be less than thatprescribed for the class specified, as follows:ClassWeight of Zinc Coating, oz/ft2(g/m2) (Total of Both Surfaces and Both Edges)Class I 0.35 (110)Class II 0.70 (210)Class III 1.00 (300)11.2 The weight of zinc co

18、ating specified is the total amounton both surfaces and both edges of the tape in ounces persquare foot (grams per square metre). The weight of zinccoating shall be calculated in accordance with the section onzinc-coated articles other than sheet or wire of Test MethodA 90/A 90M, using the following

19、 equation:C 5 W1 W2!/A! 3 N11.3 The weight of coating shall be determined by theHydrochloric Acid-Antimony Chloride Method prescribed inTest Method A 90.12. Adherence of Coating12.1 The zinc coating shall remain adherent without flakingor spalling when the tape is subjected to a 180 bend over amandr

20、el of the following diameter:ClassDiameter of Mandrel,in. (mm)Classes I and IIClass III1/8 (3.18)5/8 (15.88)12.2 The zinc coating shall be considered as meeting thisrequirement if, when the tape is bent around the specifiedmandrel, the coating does not flake and none of it can beremoved from the tap

21、e by rubbing with the fingers. Looseningor detachment during the adherence test of superficial smallparticles of zinc formed by mechanical polishing of the surfaceof the zinc-coated tape shall not constitute failure in this test.13. Permissible Variations in Dimensions13.1 Width and ThicknessThe wid

22、th and thickness of thefinished tape shall be expressed in decimal fractions of an inch.The variations in the width and thickness of zinc-coatedarmoring tape shall be within the limits specified in Table 1.13.2 CamberThe permissible camber for zinc-coated tapeshall not exceed the amounts specified i

23、n Table 2.14. Workmanship and Finish14.1 The surface of the tape shall be free of injurious scale,flaws, seams and splits, and other imperfections not consistentwith good commercial practice. The zinc coating shall besmooth and continuous.15. Inspection15.1 The manufacturer shall afford the inspecto

24、r represent-ing the purchaser all reasonable facilities, without charge, tosatisfy him that the material is being furnished in accordancewith this specification. All tests and inspections shall be madeat the place of manufacture prior to shipment, unless otherwiseagreed upon at the time of the purch

25、ase, and shall be soconducted as not to interfere unnecessarily with the operationof the works.16. Rejection16.1 The inspector shall visually examine the entire ship-ment or lot of coils for surface imperfections. The purchasermay reject the entire lot if after visual examination, more than3 % of th

26、e coils in the entire lot are found defective, or if morethan 3 % of the samples selected in accordance with Section 6fail to pass any of the tests specified in Sections 8 to 13.Ifnotmore than 3 % of the samples fail, a second set of samples,consisting of two specimens from each of the coils from wh

27、ichthe original nonconforming samples were taken, shall be cutand tested for the nonconforming properties. If any of thesesamples fail, the purchaser may reject the entire lot.17. Packaging17.1 The finished zinc-coated tape shall be furnished incompact coils reasonably symmetrical in shape. The weig

28、ht,inside diameter, and method of banding of the coils shall beagreed upon between the manufacturer and the purchaser.TABLE 1 Permissible Variations in Dimensions of Zinc-Coated TapeNominal Ordered Width, in. (mm) Width Tolerance,in. (mm)Nominal Ordered Thickness, in. (mm) Thickness Toler-ance, in.

29、(mm)0 to 1.500 (0 to 38.100), incl 60.008 (60.20) 0.020 to 0.025 (0.51 to 0.635) +0.002 (+0.05)0.001 (0.03)0.0251 to 0.035 (0.64 to 0.889) +0.0025 (+0.06)0.0015 (0.04)0.0351 to 0.045 (0.892 to 1.143) +0.003 (+0.08)0.002 (0.05)0.0451 to 0.063 (1.15 to 1.600) +0.0035 (+0.09)0.0025 (0.06)1.5001 to 3.00

30、0 (38.103 to 76.20), incl 60.010 (60.25) 0.020 to 0.025 (0.51 to 0.635) +0.002 (+0.05)0.002 (0.05)0.0251 to 0.035 (0.64 to 0.889) +0.003 (+0.08)0.002 (0.02)0.0351 to 0.045 (0.892 to 1.143) +0.003 (+0.08)+0.004 (+0.01)0.0451 to 0.063 (1.15 to 1.600) 0.003 (0.08)A45908218. Marking18.1 A durable tag sh

31、owing the nominal size of tape and thename or mark of the manufacturer shall be securely attached toone coil on each pallet. The starting end of each coil shall beindicated by a suitable tag.ASTM International takes no position respecting the validity of any patent rights asserted in connection with

32、 any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible techni

33、cal committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideratio

34、n at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harb

35、or Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 2 Permissible Camber of Zinc-Coated TapeNominal Ordered Width, in. (mm) Permissible Camber,in.in8ft0 to 1.500 (0 to 38.100), incl1.501 to 3.000 (38.103 to 76.20), incl0.500.25A459083