1、Designation: A603 98 (Reapproved 2014)Standard Specification forZinc-Coated Steel Structural Wire Rope1This standard is issued under the fixed designation A603; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers zinc-coated steel structuralwire rope, prestretched or nonprestretched for use where ahigh-strength, r
3、elatively flexible prefabricated zinc-coatedmultiple-wire tension member is desired as a component partof a structure.1.2 The wire rope is furnished with Class A weight zinc-coated wires throughout. It can be furnished with Class Bweight or Class C weight zinc-coated outer wires or Class Bweight or
4、Class C weight zinc-coated wires throughout whereadditional corrosion protection is required.1.3 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 s
5、tandard.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA902 Terminology Relating to Metallic Coated Steel Prod-uctsB6 Specification for Zinc3. Terminology3.1 DefinitionsFor definitions of terms used
6、 in thisspecification, see Terminology A902.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 Length of wire rope,4.1.2 Nominal diameter of wire rope (Tables 1-4),4.1.3 Prestretched (see 8.3) or nonprestretched,4.1.4 Coating-weight c
7、lass if other than Class A (Table 5),4.1.5 Mechanical tests if required (see 10.1),4.1.6 Special packaging requirements (Section 13), and4.1.7 Inspection (Section 12).5. Materials and Manufacture5.1 Base MetalThe base metal shall be carbon steel madeby the open-hearth, basic-oxygen, or electric-furn
8、ace processand of such quality that the finished wire rope and thehard-drawn individual zinc-coated wires coated by the hot-dipor electrolytic process shall have the properties and character-istics as prescribed in this specification.5.2 ZincThe slab zinc when used shall conform to Speci-fication B6
9、 or better.6. Physical Properties6.1 Tensile Properties:6.1.1 The zinc-coated wire used in the wire rope shallconform to the mechanical properties in Table 6 prior tofabrication, but the wire test sample may be prestretched to55 % of the minimum tensile strength specified in Table 6 priorto conducti
10、ng the tests.6.1.2 The tensile strength and the stress at 0.7 % extensionshall be based on the actual cross-sectional area of the finishedwire, including the zinc coating.6.1.3 Test SpecimensThe test specimens shall be free ofbends or kinks other than the curvature resulting from the usualcoiling op
11、eration. The hand straightening necessary to permitinsertion of the specimen in the jaws of the testing machineshall be performed by drawing between wood blocks or bysome other equally satisfactory means.6.2 Stress at 0.7 % Extension Under LoadThe value ofstress at 0.7 % extension under load shall b
12、e determined by oneof the following procedures, depending on the type of exten-someter used:6.2.1 Non-Autographic ExtensometerWhen a non-autographic extensometer is used to measure the 0.7 %extension, it shall have a gage length of 10 in. (254 mm), andit shall be so graduated that the smallest divis
13、ion correspondsto a strain not larger than 0.0001 in./in. (0.0001 mm/mm) ofgage length. Apply a load corresponding to the tensile stressindicated in Table 5, using the nominal diameter of the1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products
14、and is the direct responsibility of Subcom-mittee A05.12 on Wire Specifications.Current edition approved Aug. 1, 2014. Published August 2014. Originallyapproved in 1970. Last previous edition approved in 2009 as A603 98 (2009)1.DOI: 10.1520/A0603-98R14.2For referenced ASTM standards, visit the ASTM
15、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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United S
16、tates1TABLE 1 Properties of Single-Class Zinc-Coated Steel Structural Wire Rope (Inch-Pound Units)Nominal Diameter, in.Minimum Breaking Strength in Tons of 2000 lbApproximate GrossMetallic Area, in.2ApproximateWeight/ft, lbClass A CoatingThroughoutClass B CoatingThroughoutClass C CoatingThroughout38
17、 6.5 6.2 5.9 0.065 0.24716 8.8 8.4 8.0 0.091 0.3212 11.5 11.0 10.5 0.119 0.42916 14.5 13.8 13.2 0.147 0.5358 18.0 17.2 16.4 0.182 0.651116 21.5 20.5 19.5 0.221 0.7934 26.0 24.8 23.6 0.268 0.951316 30.0 28.6 27.3 0.311 1.1078 35.0 33.4 31.8 0.361 1.281516 40.0 38.2 36.4 0.414 1.471 45.7 43.6 41.5 0.4
18、71 1.67118 57.8 55.1 52.5 0.596 2.11114 72.2 68.9 65.6 0.745 2.64138 87.8 83.8 79.8 0.906 3.21112 104.0 99.2 94.5 1.076 3.82158 123.0 117.0 112.0 1.270 4.51134 143.0 136.0 130.0 1.470 5.24178 164.0 156.0 149.0 1.690 6.032 186.0 177.0 169.0 1.920 6.85218 210.0 200.0 191.0 2.170 7.73214 235.0 224.0 21
19、4.0 2.420 8.66238 261.0 249.0 237.0 2.690 9.61212 288.0 275.0 262.0 2.970 10.60258 317.0 302.0 288.0 3.270 11.62234 347.0 331.0 315.0 3.580 12.74278 379.0 362.0 344.0 3.910 13.903 412.0 393.0 374.0 4.250 15.11314 475.0 453.0 432.0 5.040 18.00312 555.0 529.0 504.0 5.830 21.00334 640.0 611.0 582.0 6.6
20、70 24.004 730.0 696.0 664.0 7.590 27.00TABLE 2 Properties of Single-Class Zinc-Coated Steel Structural Wire Rope (SI Units)Nominal Diameter, mmMinimum Breaking Strength in Metric TonsApproximate GrossMetallic Area, mm2ApproximateWeight/m, kgClass A CoatingThroughoutClass B CoatingThroughoutClass C C
21、oatingThroughout9.53 5.9 5.6 5.4 41.9 0.3611.11 8.0 7.6 7.3 58.7 0.4812.70 10.4 10.0 9.5 76.8 0.6214.29 13.2 12.5 12.0 94.8 0.7915.88 16.3 15.6 14.9 117.4 0.9717.46 19.5 18.6 17.7 142.6 1.1819.05 23.6 22.5 21.4 172.9 1.4120.64 27.2 25.9 24.8 200.7 1.6422.23 31.8 30.3 28.8 232.9 1.9023.81 36.3 34.7 3
22、3.0 267.1 2.1925.40 41.5 39.6 37.6 303.9 2.4828.58 52.4 50.0 47.6 384.5 3.1431.75 65.5 62.5 59.5 480.7 3.9334.93 79.7 76.0 72.4 584.6 4.7838.10 94.3 90.0 85.7 694.2 5.6841.28 112.0 106.0 101.0 819.4 6.7144.45 130.0 124.0 118.0 948.4 7.8047.63 149.0 142.0 135.0 1090.4 8.9750.80 169.0 161.0 153.0 1238
23、.8 10.1953.98 190.0 182.0 173.0 1400.1 11.5057.15 213.0 203.0 194.0 1561.4 12.8960.33 237.0 226.0 215.0 1735.6 14.3063.50 261.0 249.0 238.0 1916.2 15.7766.68 288.0 274.0 261.0 2109.8 17.2969.85 315.0 300.0 286.0 2309.8 18.9673.03 344.0 328.0 312.0 2522.7 20.6876.20 374.0 356.0 340.0 2742.1 22.4882.5
24、5 431.0 411.0 392.0 3251.8 26.7888.90 504.0 480.0 458.0 3761.5 31.2595.25 581.0 554.0 528.0 4303.5 35.71101.60 662.0 632.0 602.0 4897.1 40.18A603 98 (2014)2specimen. Maintain this load while a 10-in. extensometer isattached and adjusted to the initial setting shown in Table 5.Then increase the load
25、uniformly until the extensometerindicates an extension of 0.07 in. (1.78 mm) or 0.7 % exten-sion. Record the load for this extension. The stress correspond-ing to this load shall meet the requirements for the stress of0.7 % extension specified in Table 6, depending on the class ofcoating under consi
26、deration. Hold the specimen at 0.7 %extension under load and remove the extensometer used tomeasure the stress at 0.7 % extension; then replace it with anelongation extensometer. Continue the application of load untilfracture occurs. Record the elongation attained from theelongation extensometer and
27、 add to it 0.7 % obtained from thestress at 0.7 % extensometer to get the total elongation.6.2.2 Autographic ExtensometerWhen an autographic ex-tensometer is used, it shall have a gage length of at least 2 in.(50.8 mm) and the magnification of strain shall not be less than250. Apply a load, correspo
28、nding to the tensile stress indicatedin Table 5, using the nominal diameter of the specimen.Maintain this load and attach the extensometer. Then increasethe load uniformly until the extension recorded by the exten-someter is at least 0.7 %. Determine the load at 0.7 % exten-sion from the load-strain
29、 curve. The stress corresponding tothis load shall meet the requirements for stress at 0.7 %extension prescribed in Table 6, depending on the class ofcoating under consideration. Hold the specimen at 0.7 %extension under load and remove the extensometer used tomeasure the stress at 0.7 % extension;
30、then replace it with anelongation extensometer. Continue the application of load untilfracture occurs. Record the elongation attained from theelongation extensometer and add to it 0.7 % obtained from thestress at 0.7 % extensometer to get the total elongation.NOTE 1The extensometer used for the stre
31、ss at 0.7 % extension andthe elongation extensometer may be the same instrument. Two separateinstruments are advisable in that the more sensitive stress at 0.7 %extensometer which could be damaged when the wire fractures, may beremoved following the determination of the 0.7 % extension. The elon-gat
32、ion extensometer may be constructed with less sensitive parts or beconstructed in such a way that little damage would result if fracture occurswhile the extensometer is attached to the specimen.6.3 ElongationIn determining total elongation (elasticplus plastic extension) autographic or extensometer
33、methodsmay be employed. If fracture takes place outside the middlethird of the gage length, the elongation value obtained may notbe representative of the material.6.4 Tensile StrengthThe tensile strength is determinedfrom the maximum load during the total elongation test.6.5 Ductility of SteelThe zi
34、nc-coated wire, prior to fabri-cation into wire rope, shall be capable of being wrapped twoturns in a close helix at a rate not exceeding 15 turns/minaround a cylindrical steel mandrel equal to three times thenominal diameter of the wire under test without fracture of thewire.6.6 Weight of Zinc Coat
35、ingThe weight of the zinc coatingon the individual wires prior to the fabrication of the wire ropeTABLE 3 Properties of Multi-Class Zinc-Coated Steel Structural Wire Rope (Inch-Pound Units)Nominal Diameter, in.Minimum Breaking Strength in Tons of 2000 lbApproximate GrossMetallic Area, in.2Approximat
36、eWeight/ft, lbClass A CoatingThroughoutClass B CoatingOuter WiresClass A CoatingInner WireClass C CoatingOuter WiresClass A CoatingInner Wires38 6.5 6.3 6.1 0.065 0.24716 8.8 8.5 8.2 0.091 0.3212 11.5 11.1 10.7 0.119 0.42916 14.5 14.0 13.5 0.147 0.5358 18.0 17.4 16.8 0.182 0.651116 21.5 20.8 20.0 0.
37、221 0.7934 26.0 25.1 24.2 0.268 0.951316 30.0 29.0 28.0 0.311 1.1078 35.0 33.8 32.6 0.361 1.281516 40.0 38.6 37.3 0.414 1.471 45.7 44.1 42.6 0.471 1.67118 57.8 55.8 53.9 0.596 2.11114 72.2 69.7 67.3 0.745 2.64138 87.8 84.8 81.8 0.906 3.21112 104.0 100.0 96.9 1.076 3.82158 123.0 120.0 117.0 1.270 4.5
38、1134 143.0 140.0 136.0 1.470 5.24178 164.0 160.0 156.0 1.690 6.032 186.0 182.0 177.0 1.920 6.85218 210.0 205.0 200.0 2.170 7.73214 235.0 230.0 224.0 2.420 8.66238 261.0 255.0 249.0 2.690 9.61212 288.0 281.0 275.0 2.970 10.60258 317.0 310.0 302.0 3.270 11.62234 347.0 339.0 331.0 3.580 12.74278 379.0
39、372.0 365.0 3.910 13.903 412.0 405.0 397.0 4.250 15.11314 475.0 466.0 457.0 5.040 18.00312 555.0 545.0 534.0 5.830 21.00334 640.0 628.0 616.0 6.670 24.004 730.0 717.0 703.0 7.590 27.00A603 98 (2014)3shall be not less than that specified in Table 7 when tested inaccordance with the stripping test of
40、Test Method A90/A90M.6.7 Adherence of CoatingThe zinc-coated wire, prior tofabrication into wire rope, shall be capable of being wrappedtwo turns in a close helix at a rate not exceeding 15 turns/minaround a cylindrical steel mandrel equal to five times thenominal diameter of the wire under test wit
41、hout cracking orflaking the zinc coating to such an extent that any zinc can beremoved by rubbing with the bare fingers. Loosening ordetachment during the adherence test of superficial smallparticles of zinc, formed by mechanical polishing of thesurface of zinc-coated wire, shall not be considered c
42、ause forrejection.6.8 FinishThe zinc-coated wire surface shall be free ofimperfections not consistent with good commercial practice.The coating shall be continuous and reasonably uniform.TABLE 4 Properties of Multi-Class Zinc-Coated Steel Structural Wire Rope (SI Units)Nominal Diameter, mmMinimum Br
43、eaking Strength in Metric TonsApproximate GrossMetallic Area, mm2ApproximateWeight/m, kgClass A CoatingThroughoutClass B CoatingOuter WiresClass A CoatingInner WiresClass C CoatingOuter WiresClass A CoatingInner Wire9.53 5.9 5.7 5.5 41.9 0.3611.11 8.0 7.7 7.4 58.7 0.4812.70 10.4 10.1 9.7 76.8 0.6214
44、.29 13.2 12.7 12.2 94.8 0.7915.88 16.3 15.8 15.2 117.4 0.9717.46 19.5 18.9 18.1 142.6 1.1819.05 23.6 22.8 22.0 172.9 1.4120.64 27.2 26.3 25.4 200.7 1.6422.23 31.8 30.7 29.6 232.9 1.9023.81 36.3 35.0 33.8 267.1 2.1925.40 41.5 40.0 38.6 303.9 2.4828.58 52.4 50.6 48.9 384.5 3.1431.75 65.5 63.2 61.1 480
45、.7 3.9334.93 79.7 76.9 74.2 584.6 4.7838.10 94.3 91.2 87.9 694.2 5.6841.28 112.0 109.0 106.0 819.4 6.7144.45 130.0 127.0 124.0 948.4 7.8047.63 149.0 145.0 142.0 1090.4 8.9750.80 169.0 165.0 161.0 1238.8 10.1953.98 190.0 186.0 182.0 1400.1 11.5057.15 213.0 208.0 203.0 1561.4 12.8960.33 237.0 231.0 22
46、6.0 1735.6 14.3063.50 261.0 255.0 249.0 1916.2 15.7766.68 288.0 281.0 274.0 2109.8 17.2969.85 315.0 308.0 300.0 2309.8 18.9673.03 344.0 338.0 331.0 2522.7 20.6876.20 374.0 367.0 360.0 2742.1 22.4882.55 431.0 423.0 415.0 3251.8 26.7888.90 504.0 494.0 485.0 3761.5 31.2592.25 581.0 570.0 559.0 4303.5 3
47、5.71101.60 662.0 650.0 638.0 4897.1 40.18TABLE 5 Initial Settings for Determining Stress at 0.7 % ExtensionNominal Diameter Initial Stress Initial Setting of Extensometer,in./in. or mm/mmin. mm ksi MPa0.040 to 0.089, incl 1.270 to 2.283, incl 14 100 0.0005 (0.05 % extension)0.090 to 0.119, incl 2.28
48、6 to 3.045, incl 28 190 0.0010 (0.10 % extension)0.120 and largerA3.048 and largerA42 290 0.0015 (0.15 % extension)AThis is not to imply that larger wire will be manufactured to any unlimited diameter. It only implies that the wire sizes chosen by the strand manufacturer must meet therequirements of
49、 this specification.TABLE 6 Mechanical RequirementsZinc CoatingClassNominal DiameterStress at 0.7 % Extension UnderLoad, minTensile Strength, minTotal Elongationin 10 in. or 250mm, min, %in. mm psi MPa psi MPaA 0.040 to 0.110 1.016 to 2.794 150 000 1030 220 000 1520 2.00.111 and largerA2.820 and largerA160 000 1100 220 000 1520 4.0B 0.090 and largerA2.286 and largerA150 000 1030 210 000 1450 4.0C 0.090 and largerA2.286 and largerA140 000 970 200 000 1380 4.0AThis is not to imply that larger wire will be manufac
