ASTM A641 A641M-2003 Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire.pdf

1、Designation: A 641/A 641M 03Standard Specification forZincCoated (Galvanized) Carbon Steel Wire1This standard is issued under the fixed designation A 641/A 641M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revi

2、sion. A number in parentheses indicates the year of last reapproval.A superscript 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 soft, medium, and

3、hard temperzinc-coated (galvanized) carbon steel wire in coils for generaluse.1.2 The supplementary requirements of this specificationcover zinc-coated weights masses for nails, staples, and wirefrom which nails and staples are cut and formed.1.3 This specification is applicable to orders in eitheri

4、nch-pound units (as A 641) or SI units (as A 641M). Valuesstated in either inch-pound units or SI units are to be regardedseparately as the standard. Within the text, the SI units areshown in brackets. The values stated in the two systems are notexact equivalents; therefore, each system shall be use

5、d inde-pendent of the other, without combining values in any way.1.4 This specification and some referenced specificationsare expressed in both inch-pound and SI units. If the orderspecifies the applicable “M” specification designation, theproduct shall be furnished to SI units.1.5 The text of this

6、specification references notes andfootnotes which provide explanatory material. These notes andfootnotes (excluding those in tables and figures) shall not beconsidered as requirements of the specification.2. Referenced Documents2.1 ASTM Standards:A 90/A 90M Test Method for Weight Mass of Coating onI

7、ron and Steel Articles with Zinc or Zinc-Alloy Coatings2A 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for Domestic Shipments3A 902 Terminology Relating to Metallic Coated Steel Prod-ucts2B 6 Specification for Zinc (Slab Zinc)4E 8 Test Methods of Tension Testing of Met

8、allic Materials5E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications63. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology A 902.4. Classification4.1 TemperThe wire is classified with regard to mechani-c

9、al properties by temper, which is related to tensile strengthand stiffness. The temper designations are soft, medium, andhard.4.2 Zinc CoatingZinc coating on the wire is classified ina number of classes (Class 1, 2, 3, or A, 4, B, 5, C (see Table1, Table 2, Table 3, and Table S1.1) and as “regular c

10、oating.”NOTE 1Class 2 coating has been eliminated since it is no longergenerally specified by users except for nails, staples, and wire from whichnails and staples are cut and formed, as presented in the SupplementaryRequirements.5. Ordering Information5.1 Orders for material under this specificatio

11、n shall includethe following information:5.1.1 Quantity (weight mass),5.1.2 Coated wire diameter,5.1.3 Intended use, when the wire is to be used for nails orstaples (see Supplementary Requirement S1),5.1.4 Class of coating (see Table 1, Table 2, or Table 3 (orTable S1.1 when applicable),5.1.5 Temper

12、 (soft, medium, or hard) (Table 4 or Table 5),5.1.6 ASTM designation and year of issue as A 641_for inch-pound units, or A 641M-_ for SI units.5.1.7 Supplementary Requirements (if required).NOTE 2A typical ordering description (inch-pound units) is as fol-lows: 50 000 lb, 0.120 in., zinc-coated wire

13、, Class 1 coating, soft temperin 1500lb coils on tubular carriers to ASTM A 641_.1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.12 on Wire Specifications.Current edition approved Octobe

14、r 1, 2003. Published December 2003. Originallyapproved in 1992. Last previous edition approved in 1998 as A 641/A 641M - 98.2Annual Book of ASTM Standards, Vol 01.06.3Annual Book of ASTM Standards, Vol 01.05.4Annual Book of ASTM Standards, Vol 02.04.5Annual Book of ASTM Standards, Vol 03.01.6Annual

15、Book of ASTM Standards, Vol 14.02.1*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.NOTE 3A typical ordering description (SI units) is as follows: 50 000kg, 3.00 mm., zi

16、nc-coated wire, Class 1 coating, soft temper in 1000kgcoils on tubular carriers to ASTM A 641M_.6. Materials and Manufacture6.1 The steel from which the wire is produced shall be madeby any commercially accepted steel making process.6.2 The slab zinc when used shall be any grade of zincconforming to

17、 Specification B 6.7. Mechanical Properties7.1 The zinc-coated wire, as represented by the test speci-mens tested in accordance with Test Methods E 8, shallconform to the tensile strength requirements prescribed inTable 4 or Table 57.2 Test specimens found to contain a weld or obviousimperfections s

18、hall be discarded and another test specimenobtained to verify conformance to the tensile strength require-ments.8. Permissible Variations8.1 The permissible variation in diameter of the zinc-coatedwire as represented by the test specimens shall meet therequirements shown in Table 6 or Table 7.9. Wei

19、ght Mass of Coating9.1 The zinc-coated wire, as represented by the test speci-mens tested in accordance with Section 12 and Test Method A90/A 90M, shall conform to the requirements of Table 1, Table2, or Table 3 for minimum weight mass of zinc coating of theclass specified.9.2 Zinc-coated wire produ

20、ced as “regular coating” shallhave the full surface covered with zinc, but there is no specifiedminimum weight of coating.10. Adherence of Coating10.1 The zinc-coated wire as represented by the test speci-mens shall be capable of being wrapped in a close helix at arate not exceeding 15 turns/min aro

21、und a cylindrical steelmandrel having a diameter as prescribed in Table 8 or Table 9without cracking or flaking the zinc coating to such an extentthat any zinc can be removed by rubbing with the bare fingers.Loosening or detachment during the adhesion test of superfi-cial, small particles of zinc fo

22、rmed by mechanical polishing ofthe surface of the zinc-coated wire shall not be consideredcause for rejection.11. Workmanship, Finish, and Appearance11.1 The zinc-coated wire shall be free of slivers, scale, andother imperfections not consistent with good commercialpractice. The coating shall be con

23、tinuous and reasonablyuniform. To ensure large continuous length coils, welds arepermitted in the finished wire.12. Number of Tests and Retests12.1 The number of test specimens taken from the ends ofcoils during production to ensure compliance with Sections 7,8, 9, and 10 vary with the quality contr

24、ol procedures and themanufacturing facilities of each manufacturer but is generallynot less than 10 % of the coils produced. For the purpose offinal product testing, one specimen from every ten coils orfraction thereof in a lot shall be selected at random or a total ofseven specimens, whichever is l

25、ess.TABLE 1 Minimum Weight Mass of Zinc per Unit Area of Uncoated Wire Surface (Inch-Pound Units)Wire Diameter in.AClass 1Class 3 or A Coating,oz/ft2Class 4 Coating,oz/ft2Class B Coating,oz/ft2Class 5 Coating,oz/ft2Class C Coating,oz/ft20.035 0.15 0.45 n/a 0.90 n/a 1.350.041 0.15 0.50 n/a 1.00 n/a 1

26、.500.048 0.15 0.55 n/a 1.10 n/a 1.650.054 0.20 0.60 n/a 1.20 n/a 1.800.062 0.20 0.65 n/a 1.20 n/a 1.800.072 0.20 0.65 n/a 1.20 n/a 1.800.076 0.25 0.70 1.20 1.40 2.00 2.100.080 0.25 0.70 1.20 1.40 2.00 2.100.092 0.28 0.75 1.20 1.50 2.00 2.250.099 0.28 0.80 1.20 1.60 2.00 2.400.106 0.30 0.80 1.20 1.60

27、 2.00 2.400.120 0.30 0.85 1.20 1.70 2.00 2.550.135 0.30 0.85 1.20 1.70 2.00 2.550.148 0.35 0.90 1.20 1.80 2.00 2.700.162 0.35 0.90 1.20 1.80 2.00 2.700.177 0.44 0.90 1.20 1.80 2.00 2.700.192 0.50 1.00 1.20 2.00 2.00 3.000.207 0.53 1.00 1.20 2.00 2.00 3.00and largerACoating weights mass for diameters

28、 other than those shown in Table 1 are the coating weights mass for the next smaller diameter.TABLE 2 Minimum Weight Mass of Zinc per Unit Area ofUncoated Wire Surface (SI Units)Wire Diameter, mm Class 1 Coating, g/m20.20 to under 0.25 200.25 to under 0.40 250.40 to under 0.50 300.50 to under 0.60 3

29、50.60 to under 0.80 400.80 to under 1.10 451.10 to under 1.50 551.50 to under 1.90 651.90 to under 2.30 752.30 to under 3.20 853.20 to under 4.00 1004.00 to under 4.90 1154.90 to under 5.90 1505.90 and over 190A 641/A 641M 03212.2 A wire sample of sufficient length, approximately 4 ft1.2 m, shall be

30、 cut from either end of each coil selected fortests described in Sections 7, 8, 9, and 10.12.3 If one or more of the wire specimens fail any require-ment, the lot shall be subjected to retest. For retest purposes,the original lot shall be regrouped into 50 coil lots or fractionsthereof. Each lot sha

31、ll be 10 % tested for the property in whichthe original sample failed to comply. The number of samplesthus selected shall be at least twice the number of the originalsampling. Any lot that exhibits a failure shall be rejected.12.3.1 The manufacturer has the option of testing each coilin the failed l

32、ot for the property in which the failure occurred,rejecting the nonconforming coils. The coils which conformfor the property tested shall be deemed to conform to thespecification requirements.13. Inspection13.1 Unless otherwise specified in the purchase order orcontract, the manufacturer is responsi

33、ble for the performanceof all inspection and test requirements specified in this speci-fication. Except as otherwise specified in the purchase order orcontract, the manufacturer shall use his own or other suitablefacilities for the performance of the inspection and testrequirements, at his option, u

34、nless disapproved by the pur-chaser at the time the order is placed. The purchaser shall havethe right to perform any of the inspection and tests prescribedTABLE 3 Minimum Weight Mass of Zinc per Unit Area of Uncoated Wire Surface (SI Units)Diameter, mmAClass 3 or A Coating, g/m2Class 4 Coating, g/m

35、2Class B Coating g/m2Class 5 Coating, g/m2Class C Coating g/m20.90 137 n/a 275 n/a 4121.00 153 n/a 305 n/a 4581.20 168 n/a 336 n/a 5041.40 183 n/a 366 n/a 5491.60 198 n/a 366 n/a 5491.80 198 n/a 366 n/a 5491.90 214 366 427 610 6412.00 214 366 427 610 6412.30 229 366 458 610 6872.50 244 366 488 610 7

36、322.70 244 366 488 610 7323.00 259 366 519 610 7783.40 259 366 519 610 7783.80 275 366 549 610 8244.10 275 366 549 610 8244.50 275 366 549 610 8244.90 305 366 610 610 9155.30 305 366 610 610 915and largerACoating weights mass for diameters other than those shown in this table are the coating weights

37、 mass for the next smaller diameter.TABLE 4 Tensile Strength for Temper Designation (Inch-PoundUnits)Wire Diameter, in. Soft, KsiAMedium, KsiAHard, KsiA0.035 to under 0.080 75 max 70 to 100 90 to 1200.080 to under 0.106 75 max 70 to 95 85 to 1150.106 to 0.176A, incl 70 max 65 to 90 80 to 110Over 0.1

38、76 70 max 60 to 85 75 to 105AFor the purpose of determining conformance with this specification, andobserved value shall be rounded to the nearest 1 Ksi in accordance with therounding method of Practice E 29.TABLE 5 Tensile Strength for Temper Designation (SI Units)Wire Diameter, mmMPaSoftAMediumAHa

39、rdA0.20 to under 2.00 515 max 485 to 690 620 to 8252.00 to under 2.50 515 max 485 to 655 585 to 7952.50 to under 4.70 485 max 450 to 620 550 to 7604.70 and over 485 max 415 to 585 515 to 715AFor the purpose of determining conformance with this specification, anobserved value shall be rounded to the

40、nearest 1 MPa in accordance with therounding method of Practice E 29.TABLE 6 Diameter Tolerance for Zinc-Coated Wire in Coils (Inch-Pound Units)AWire Diameter, in.ToleranceBPlus and Minus, in.Regular and Class 1CoatingClass 3, 4, 5 or B andC Coating0.035 to under 0.076 0.002 0.0020.076 to under 0.14

41、8 0.003 0.0040.148 to 0.250, incl. 0.003 0.004Over 0.250 to 0.500, incl. 0.003 0.005AFor the purpose of detrmining conformance with this specificaiton, an observedvalue shall be rounded to the nearest 0.001 in. in accordance with the roundingmethod of Practice E 29.BIt is recognized that the surface

42、s of heavy zinc coating, particularly thoseproduced by hot galvanizing, are not perfectly smooth and devoid of irregularities.The tolerances shown in Table 6 shall not be rigidly applied to such irregularitiesthat are inherent to the product, so that unjustified rejections of wire that areactually s

43、atisfactory for use do not occur. Therefore, it is intended that thesetolerances be used in gaging the uniform areas of the zinc-coated wire.TABLE 7 Diameter Tolerance for Zinc-Coated Wire in Coils (SIUnits)AWire Diameter, mmToleranceB, Plus and Minus, mmRegular and Class 1CoatingClass 3, 4, 5 or A,

44、 B,and C Coating0.20 to under 1.90 0.05 0.051.90 to under 3.70 0.08 0.103.70 to under 5.90 0.08 0.105.90 and over 0.08 0.13AFor the purpose of determining conformance with this specification, anobserved value shall be rounded to the nearest 0.01 mm in accordance with therounding method of Practice E

45、 29.BIt is recognized that the surfaces of heavy zinc coating, particularly thoseproduced by hot galvanizing, are not perfectly smooth and devoid of irregularities.The tolerances shown in Table 7 shall not be rigidly applied to such irregularitiesthat are inherent to the product, so that unjustified

46、 rejections of wire that is actuallysatisfactory for use do not occur. Therefore, it is intended that these tolerances beused in gaging the uniform areas of the zinc-coated wire.A 641/A 641M 033in this specification when such inspections and tests aredeemed necessary to ensure that the material conf

47、orms toprescribed requirements.14. Rejection and Rehearing14.1 Material that fails to conform to the requirements ofthis specification is subject to rejection. Rejection shall bereported to the producer or supplier promptly and in writing. Incase of dissatisfaction with the results of the test, the

48、produceror supplier shall make claim for a rehearing.15. Certification15.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to thepurchaser that the material was manufactured, sampled, tested,and inspected in accordance with this specificatio

49、n and hasbeen found to meet the requirements. When specified in thepurchase order or contract, a report of the test results shall befurnished.16. Package and Package Marking16.1 Unless otherwise specified, packaging, marking, andloading for shipment shall be in accordance with PracticesA 700.17. Keywords17.1 galvanized wire; steel wire; wire; zinc-coated carbonsteel wireSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply only when specified by the purchaser in thecontract or order.S1. Zinc Coating on Wire