ASTM A411-2008 Standard Specification for Zinc-Coated (Galvanized) Low-Carbon Steel Armor Wire《镀锌(电镀)低碳素钢铠装线的标准规范》.pdf

1、Designation: A 411 08Standard Specification forZinc-Coated (Galvanized) Low-Carbon Steel Armor Wire1This standard is issued under the fixed designation A 411; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio

2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 covers zinc-coated low-carbon

3、 steelwire for use in armoring for protection against damage ofsubmarine and underground cables used for communication,control, or power purposes.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

4、provided for information onlyand are not considered standard.2. Referenced 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 938 Test Method for Torsion Testing of WireB6 Specification for ZincE8 Test Methods fo

5、r Tension Testing of Metallic Materials3. Ordering Information3.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for material under thisspecification. Such requirements may include, but are notlimited to, the following information:3.1.1 Quantity of each

6、 size,3.1.2 Wire size, diameter in inches or (millimetres) (Section12), and3.1.3 Weight (Mass), inside diameter, and method of band-ing of coils.4. Zinc for Coating4.1 The slab zinc used for the coating shall be any grade ofzinc conforming to Specification B6.5. Base Metal5.1 The base metal shall be

7、 manufactured by any commer-cially accepted steel making practice, and of such quality that,when processed and zinc-coated, the finished wire shall havethe properties prescribed in this specification.6. Joints6.1 The wire shall be furnished in coils of one continuouslength. Welds made prior to final

8、 wire drawing shall bepermitted.7. Tensile Strength7.1 The zinc-coated wire shall have a tensile strength of notless than 50 000 psi (345 MPa), nor more than 70 000 psi (483MPa). The tensile strength of the zinc-coated wire shall bedetermined in accordance with Test Methods E8. The diameterof the wi

9、re shall be measured over the zinc coating for thepurpose of calculating the tensile strength.8. Elongation8.1 The zinc-coated wire shall have an elongation of not lessthan 10 % in 10 in. (254 mm) for nominal sizes 0.284 in. (7.21mm) and smaller. Nominal sizes larger than 0.284 in. shall havean elon

10、gation of not less than 9 % in 10 in. The elongation shallbe determined as the permanent increase in length after failureof a marked section of the wire originally 10 in. in length.9. Torsion Test9.1 The zinc-coated wire shall withstand without fracturethe minimum number of turns specified in Table

11、1. This testshall be done in accordance with Test Method A 938 and thenumber of turns to failure shall meet the requirements of Table1.10. Weight of Coating10.1 The weight of zinc coating, in ounces per square footor (grams per square metre) of uncoated wire surface, shall benot less than that speci

12、fied in Table 2.10.2 Weight of Coating TestThe zinc coating shall betested for weight by a stripping test in accordance with TestMethods A 90/A 90M.1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcomm

13、ittee A05.12 on Wire Specifications.Current edition approved May 1, 2008. Published May 2008. Originallyapproved in 1957. Last previous edition approved in 2003 as A 411 - 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For

14、 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 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.11. A

15、dherence of Coating11.1 The zinc coating shall remain adherent when the wireis wrapped at a rate of not more than 15 turns per minute in aclose helix of at least 2 turns around a cylindrical mandrel ofthe diameter specified in Table 3. The zinc coating shall beconsidered as meeting this requirement

16、if, when the wire iswrapped about the specified mandrel, the coating does not flakeand none of it can be removed from the wire by rubbing withfingers. Loosening or detachment during the adhesion test ofsuperficial, small particles of zinc formed by mechanicalpolishing of the surface of zinc-coated w

17、ire shall not beconsidered cause for rejection.12. Size and Permissible Variations12.1 SizeThe size of the zinc-coated wires shall beexpressed as the diameter of the wire in decimal fractions of aninch or (millimetres).12.2 Permissible VariationsThe permissible variations ofthe zinc-coated wire from

18、 the nominal diameter shall be asspecified in Table 4.13. Workmanship, Finish and Appearance13.1 The surface of the wire shall be free from injuriousscale, flaws, splits, and other imperfections not consistent withgood commercial practice. The coating shall be continuous andreasonably uniform.14. Sa

19、mpling14.1 The inspector shall select at random one sample coilfrom every 10 coils in the first 100 coils of the lot, and onesample for every additional 35 coils but not less than 3 coilsfrom the entire lot. From each coil of zinc-coated wire thusselected, a sample of suitable length shall be taken

20、for theweight of coating and mechanical tests as specified in Sections7-11, inclusive.15. Inspection15.1 Unless otherwise specified in the contract or purchaseorder, the manufacturer is responsible for the performance ofall inspection and test requirements specified in this standard.Except as otherw

21、ise specified in the contract or purchase order,the manufacturer may use his own or any other suitable facilityfor the performance of the inspection and test requirementsunless disapproved by the purchaser at the time the order isplaced. The purchaser shall have the right to perform any of theinspec

22、tions and tests set forth in this standard when suchinspections and tests are deemed necessary to assure that thematerial conforms to prescribed requirements.16. Rejection16.1 Failure of any of the test specimens to comply with therequirements of this specification shall constitute grounds forreject

23、ion of the lot represented by the specimen. The lot may bere-submitted for inspection by testing every coil for thecharacteristics in which the specimen failed, and sorting out thedefective coils.17. Packaging17.1 The finished zinc-coated wire shall be furnished incompact coils reasonably symmetrica

24、l in shape. The weight,inside diameter, and method of banding of the coils shall beagreed upon between the manufacturer and the purchaser.18. Marking18.1 Adurable tag shall be attached to each coil showing thenominal size of wire and the name or mark of the manufacturer.The starting end of each coil

25、 shall be indicated by a suitabletag.19. Keywords19.1 armor wire; zinc coated steel armor wireTABLE 1 Minimum Number of TurnsNominal Wire Diameter, in. (mm)MinimumTurns(8 in. gage length)0.239 (6.07) and over 70.238 to 0.166 (6.05 to 4.22) 90.165 to 0.110 (4.19 to 2.79) 130.109 to 0.065 (2.77 to 1.6

26、5) 19TABLE 2 Minimum Weights of Zinc CoatingNominal Diameter ofCoated Wire, in. (mm)Minimum Weight of ZincCoating oz/ft2(g/m2)ofUncoated Wire Surface0.340 (8.64) 1.00 (300)0.300 (7.62) 1.00 (300)0.284 (7.21) 1.00 (300)0.259 (6.58) 1.00 (300)0.238 (6.05) 1.00 (300)0.220 (5.59) 1.00 (300)0.203 (5.16)

27、1.00 (300)0.165 (4.19) 0.90 (270)0.134 (3.40) 0.80 (240)0.109 (2.77) 0.80 (240)0.083 (2.11) 0.60 (180)0.065 (1.65) 0.50 (150)TABLE 3 Mandrel Diameter for Adherence of Coating TestsWire Diameters, in. (mm) Mandrel Size0.259 (6.58) and over 530.258 to 0.134 (6.55 to 3.40) 330.133 (3.38) and under 23TA

28、BLE 4 Permissible Variations in Diameter of Zinc-Coated WireNOTE 1It is recognized that the surfaces of zinc coatings, particularlythose produced by hot-dip galvanizing, are not perfectly smooth anddevoid of irregularities. If the tolerances shown are rigidly applied to suchirregularities that are i

29、nherent to the product, unjustified rejections of wirethat would actually be satisfactory for use could occur. Therefore, it isintended that these tolerances be used in gaging the uniform areas of thegalvanized wire.Nominal Diameter of Coated Wire, in. (mm)Permissible Variations, plusor minus, in. (

30、mm)0.340 to 0.260 (8.64 to 6.60) 0.006 (0.15)0.259 to 0.166 (6.58 to 4.22) 0.005 (0.13)0.165 to 0.109 (4.19 to 2.77) 0.004 (0.10)0.108 to 0.065 (2.74 to 1.65) 0.003 (0.08)A411082SUMMARY OF CHANGESCommittee A05 has identified the location of selected changes to this standard since the last issue (A 4

31、11 - 03)that may impact the use of this standard. (May 1, 2008)(1) Revised 5.1 to keep wording of steel making practicesuniform between standards.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of

32、 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 technical committee and must be reviewed every five

33、 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 consideration at a meeting of theresponsible technical co

34、mmittee, 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 Harbor 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).A411083