1、Designation: A 411 03Standard 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 (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 covers zinc-coated low-carbo
3、n 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 the standard.2. Referenced Documents2.1 ASTM Standards:2A 90/A 90M Test Method for Weight
4、Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA 938 Test Method for Torsion Testing of WireB6 Specification for Zinc (Slab Zinc)E8 Test Methods of Tension Testing of Metallic Materials3. Ordering Information3.1 It shall be the responsibility of the purchaser to specifyall
5、 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 size,3.1.2 Wire size, diameter in inches or millimetres (Section12), and3.1.3 Weight Mass, inside diameter, and method of band
6、-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 open-hearth, basic-oxygen, orelectric-furnace steel, ingot or continuous cast, and of suchquality that, when processed and zinc-co
7、ated, the finished wireshall have the properties prescribed in this specification.6. Joints6.1 The wire shall be furnished in coils of one continuouslength. Welds made prior to final wire drawing shall bepermitted.7. Tensile Strength7.1 The zinc-coated wire shall have a tensile strength of notless t
8、han 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 wire shall be measured over the zinc coating for thepurpose of calculating the tensile strength.8. Elongation8.1 The zinc-co
9、ated 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 elongation of not less than 9 % in 10 in. The elongation shallbe determined as the permanent increase in length after failureof a
10、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 1. This testshall be done in accordance with Test Method A 938 and thenumber of turns to failure shall meet the requirements o
11、f 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 specified in Table 2.10.2 Weight of Coating TestThe zinc coating shall betested for weight by a stripping test in accordance with Tes
12、tMethods A 90/A 90M.11. Adherence 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 of1This specification is under the jurisdiction of ASTM Committee A05 onMeta
13、llic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.12 on Wire Specifications.Current edition approved Oct. 1, 2003. Published December 2003. Originallyapproved in 1957. Last previous edition approved in 1998 as A 411 - 98.2For referenced ASTM standards, visit the
14、 ASTM 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 B
15、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.the diameter specified in Table 3. The zinc coating shall beconsidered as meeting this requirement if, when the wire iswrapped about the specified mandrel, the coating does not flakeand none of it can be removed from the
16、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 wire shall not beconsidered cause for rejection.12. Size and Permissible Variations12.1 SizeThe size of the zinc-coated wir
17、es 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 the nominal diameter shall be asspecified in Table 4.13. Workmanship, Finish and Appearance13.1 The surface of the wire sha
18、ll be free from injuriousscale, flaws, splits, and other imperfections not consistent withgood commercial practice. The coating shall be continuous andreasonably uniform.14. Sampling14.1 The inspector shall select at random one sample coilfrom every 10 coils in the first 100 coils of the lot, and on
19、esample 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 for theweight of coating and mechanical tests as specified in Sections7-11, inclusive.15. Inspection15.1 Unless otherwise sp
20、ecified in the contract or purchaseorder, the manufacturer is responsible for the performance ofall inspection and test requirements specified in this standard.Except as otherwise specified in the contract or purchase order,the manufacturer may use his own or any other suitable facilityfor the perfo
21、rmance 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 theinspections and tests set forth in this standard when suchinspections and tests are deemed necessary to assure that thematerial co
22、nforms to prescribed requirements.16. Rejection16.1 Failure of any of the test specimens to comply with therequirements of this specification shall constitute grounds forrejection of the lot represented by the specimen. The lot may bere-submitted for inspection by testing every coil for thecharacter
23、istics in which the specimen failed, and sorting out thedefective coils.17. Packaging17.1 The finished zinc-coated wire shall be furnished incompact coils reasonably symmetrical in shape. The weight,inside diameter, and method of banding of the coils shall beagreed upon between the manufacturer and
24、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 shall be indicated by a suitabletag.19. Keywords19.1 armor wire; zinc coated steel armor wireTABLE 1 Minimum Number of Turn
25、sNominal Wire Diameter, in. mmMinimumTurns(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 1.65 19TABLE 2 Minimum Weights of Zinc CoatingNominal Diameter ofCoated Wire, in. mmMinimum Weight of ZincCoating oz/ft2g/m2ofUncoated W
26、ire Surface0.340 8.64 1.00 3000.300 7.62 1.00 3000.284 7.21 1.00 3000.259 6.58 1.00 3000.238 6.05 1.00 3000.220 5.59 1.00 3000.203 5.16 1.00 3000.165 4.19 0.90 2700.134 3.40 0.80 2400.109 2.77 0.80 2400.083 2.11 0.60 1800.065 1.65 0.50 150TABLE 3 Mandrel Diameter for Adherence of Coating TestsWire D
27、iameters, 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 23TABLE 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
28、 anddevoid of irregularities. If the tolerances shown are rigidly applied to suchirregularities that are inherent 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
29、of thegalvanized wire.Nominal Diameter of Coated Wire, in. mmPermissible Variations, plusor minus, in. mm0.340 to 0.260 8.64 to 6.60 0.006 0.150.259 to 0.166 6.58 to 4.22 0.005 0.130.165 to 0.109 4.19 to 2.77 0.004 0.100.108 to 0.065 2.74 to 1.65 0.003 0.08A411032SUMMARY OF CHANGESCommittee A05 has
30、identified the location of selected changes to this standard since the last issue (A 411 - 98)that may impact the use of this standard.A411-03:(1) Edited paragraph 3.1 for ordering information consistencywith all A05 standards.(2) Added metric characteristics to paragraphs 3.1.2, 3.1.3,10.1, and 12.
31、1 since metric values are provided in the tables.(3) Added the casting method to the steelmaking method forclarification in Section 5.(4) Changed Section 9 for clarity and uniformity betweenstandards.(5) Changed Section 15 for clarity.(6) Made an editorial change to the first sentence in paragraph18
32、.1.(7) Eliminated Birmingham Wire Gage from Table 2.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rig
33、hts, 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 years andif not revised, either reapproved or withdrawn. Your comments are invited either for
34、 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 committee, which you may attend. If you feel that your comments have not received a fair hearing
35、 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).A411033
