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1.1 This specification covers steel wire and welded wire reinforcement produced from hot-rolled rod to be used for the reinforcement of concrete. The steel wire is cold-worked, drawn or rolled, plain (non-deformed, as-drawn or galvanized), or deformed. Welded wire reinforcement is made from plain or deformed wire, or a combination of plain and deformed wire. Common wire sizes and dimensions are given in Table 1, Table 2, Table 3, and Table 4. Actual wire sizes are not restricted to those shown in the tables.
TABLE 1 Dimensional Requirements for Plain Wire—Inch-Pound UnitsANominal Diameter
in. [mm]E
Nominal Area
in.2 [mm 2]
W 0.5
0.080 [2.03]
0.005 [3.23]
W 1.2
0.124 [3.14]
0.012 [7.74]
W 1.4
0.134 [3.39]
0.014 [9.03]
W 2
0.160 [4.05]
0.020 [12.9]
W 2.5
0.178 [4.53]
0.025 [16.1]
W 2.9
0.192 [4.88]
0.029 [18.7]
W 3.5
0.211 [5.36]
0.035 [22.6]
W 4
0.226 [5.73]
0.040 [25.8]
W 4.5
0.239 [6.08]
0.045 [29.0]
W 5
0.252 [6.41]
0.050 [32.3]
W 5.5
0.265 [6.72]
0.055 [35.5]
W 6
0.276 [7.02]
0.060 [38.7]
W 8
0.319 [8.11]
0.080 [51.6]
W 10
0.357 [9.06]
0.100 [64.5]
W 11
0.374 [9.50]
0.110 [71.0]
W 12
0.391 [9.93]
0.120 [77.4]
W 14
0.422 [10.7]
0.140 [90.3]
W 16
0.451 [11.5]
0.160 [103]
W 18
0.479 [12.2]
0.180 [116]
W 20
0.505 [12.8]
0.200 [129]
W 22
0.529 [13.4]
0.220 [142]
W 24
0.553 [14.0]
0.240 [155]
W 26
0.575 [14.6]
0.260 [168]
W 28
0.597 [15.2]
0.280 [181]
W 30
0.618 [15.7]
0.300 [194]
W 31
0.628 [16.0]
0.310 [200]
W 45
0.757 [19.2]
0.450 [290]
A Table 1 should be used on projects that are designed using inch-pound units; Table 2 should be used on projects that are designed using SI units.B The number following the prefix indicates the nominal cross-sectional area of the wire in square inches multiplied by 100.C For sizes other than those shown above, the Size Number shall be the number of one hundredth of a square inch in the nominal area of the wire cross section, prefixed by the W.D These sizes represent the most readily available sizes in the welding wire reinforcement industry. Other wire sizes are available and many manufactures can produce them in 0.0015 in.2 increments.E The nominal diameter is based on the nominal area of the wire.TABLE 2 Dimensional Requirements for Plain Wire—SI UnitsANominal Diameter
mm [in.]E
Nominal Area
mm2 [in. 2]
MW 5
2.52 [0.099]
5 [0.008]
MW 10
3.57 [0.140]
10 [0.016]
MW 15
4.37 [0.172]
15 [0.023]
MW 20
5.05 [0.199]
20 [0.031]
MW 25
5.64 [0.222]
25 [0.039]
MW 30
6.18 [0.243]
30 [0.047]
MW 35
6.68 [0.263]
35 [0.054]
MW 40
7.14 [0.281]
40 [0.062]
MW 45
7.57 [0.298]
45 [0.070]
MW 50
7.98 [0.314]
50 [0.078]
MW 55
8.37 [0.329]
55 [0.085]
MW 60
8.74 [0.344]
60 [0.093]
MW 65
9.10 [0.358]
65 [0.101]
MW 70
9.44 [0.372]
70 [0.109]
MW 80
10.1 [0.397]
80 [0.124]
MW 90
10.7 [0.421]
90 [0.140]
MW 100
11.3 [0.444]
100 [0.155]
MW 120
12.4 [0.487]
120 [0.186]
MW 130
12.9 [0.507]
130 [0.202]
MW 200
16.0 [0.628]
200 [0.310]
MW 290
19.2 [0.757]
290 [0.450]
A The wire sizes in Table 1 should be used on projects that are designed using inch-pound units; the wire sizes in Table 2 should be used on projects that are designed using SI units.B The number following the prefix indicates the nominal cross-sectional area of the wire in square milimetres.C For sizes other than those shown above, the Size Number shall be the number of square millimetres in the nominal area of the wire cross section, prefixed by the MW.D These sizes represent the most readily available sizes in the welding wire reinforcement industry. Other wire sizes are available and many manufactures can produce them in 1 mm2 increments.E The nominal diameter is based on the nominal area of the wire.TABLE 3 Dimensional Requirements for Deformed Wire—Inch-Pound UnitsNominal Dimensions
Deformation Requirements
Unit Weight, lb/ft
Diameter, in.E
Cross-Sectional Area, in.2 F
Minimum Average Height of Deformations, in.G, H, I
D1
0.034
0.113
0.010
0.0045
D2
0.068
0.160
0.020
0.0063
D3
0.102
0.195
0.030
0.0078
D4
0.136
0.226
0.040
0.0101
D5
0.170
0.252
0.050
0.0113
D6
0.204
0.276
0.060
0.0124
D7
0.238
0.299
0.070
0.0134
D8
0.272
0.319
0.080
0.0143
D9
0.306
0.339
0.090
0.0152
D10
0.340
0.357
0.100
0.0160
D11
0.374
0.374
0.110
0.0187
D12
0.408
0.391
0.120
0.0195
D13
0.442
0.407
0.130
0.0203
D14
0.476
0.422
0.140
0.0211
D15
0.510
0.437
0.150
0.0218
D16
0.544
0.451
0.160
0.0225
D17
0.578
0.465
0.170
0.0232
D18
0.612
0.479
0.180
0.0239
D19
0.646
0.492
0.190
0.0245
D20
0.680
0.505
0.200
0.0252
D21
0.714
0.517
0.210
0.0259
D22
0.748
0.529
0.220
0.0265
D23
0.782
0.541
0.230
0.0271
D24
0.816
0.553
0.240
0.0277
D25
0.850
0.564
0.250
0.0282
D26
0.884
0.575
0.260
0.0288
D27
0.918
0.586
0.270
0.0293
D28
0.952
0.597
0.280
0.0299
D29
0.986
0.608
0.290
0.0304
D30
1.02
0.618
0.300
0.0309
D31
1.05
0.628
0.310
0.0314
D45
1.53
0.757
0.450
0.0379
A The wire sizes in Table 3 should be used on projects that are designed using inch-pound units; the wire sizes in Table 4 should be used on projects that are designed using SI units.B The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square inches multiplied by 100.C For sizes other than those shown above, the Size Number shall be the number of one hundredths of a square inch in the nominal area of the deformed wire cross section, prefixed by the D.D These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce them in 0.0015 in.2 increments.E The nominal diameter of a deformed wire is equivalent to the nominal diameter of a plain wire having the same weight per foot as the deformed wire. F The cross-sectional area is based on the weight of the wire. The area in square inches may be calculated by dividing the weight in pounds by 0.2833 (weight of 1 in.3 of steel) or by dividing the weight per lineal foot of specimen in pounds by 3.4 (weight of steel 1 in. square and 1 foot long).G The minimum average height of the deformations shall be determined from measurements made on not less than two typical deformations from each line of deformations on the wire. Measurements shall be made at the center of indentation or between two raised ribs as described in 7.2.4.7.H Spacing of deformations shall not be greater than 0.285 in. nor less than 0.182 in. for all wire sizes.I See 7.2.4.3 for average number of deformations per unit length.TABLE 4 Dimensional Requirements for Deformed Wire—SI UnitsNominal Dimensions
Deformation Requirements
D [in.2 × 100]
Unit Mass, kg/m
Diameter, mmE
Cross-Sectional Area, mm2 F
Minimum Average Height of Deformations, mmG, H, I
MD 25
[D 3.9]
0.196
5.64
25
0.252
MD 30
[D 4.7]
0.235
6.18
30
0.279
MD 35
[D 5.4]
0.275
6.68
35
0.302
MD 40
[D 6.2]
0.314
7.14
40
0.320
MD 45
[D 7.0]
0.353
7.57
45
0.342
MD 50
[D 7.8]
0.392
7.98
50
0.360
MD 55
[D 8.5]
0.432
8.37
55
0.378
MD 60
[D 9.3]
0.471
8.74
60
0.392
MD 65
[D 10.1]
0.510
9.10
65
0.455
MD 70
[D 10.9]
0.549
9.44
70
0.470
MD 80
[D 12.4]
0.628
10.1
80
0.505
MD 90
[D 14.0]
0.706
10.7
90
0.535
MD 100
[D 15.5]
0.785
11.3
100
0.565
MD 120
[D 18.6]
0.942
12.4
120
0.620
MD 130
[D 20.2]
1.02
12.9
130
0.645
MD 200
[D 31.0]
1.57
16.0
200
0.800
MD 290
[D 45.0]
2.28
19.2
290
0.961
A The wire sizes in Table 3 should be used on projects that are designed using inch-pound units; the wire sizes in Table 4 should be used on projects that are designed using SI units.B The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square millimetres.C For sizes other than those shown above, the Size Number shall be the number of square millimetres in the nominal area of the deformed wire cross section, prefixed by the MD.D These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce them in 1 mm2 increments.E The nominal diameter of a deformed wire is equivalent to the nominal diameter of a plain wire having the same weight per metre as the deformed wire. F The cross-sectional area is based on the mass of the wire. The area in square millimetres may be calculated by dividing the unit mass in kg/mm by 7.849 × 10-6 (mass of 1 mm3 of steel) or by dividing the unit mass in kg/m by 0.007849 (mass of steel 1 mm square and 1 m long).G The minimum average height of the deformations shall be determined from measurements made on not less than two typical deformations from each line of deformations on the wire. Measurements shall be made at the center of indentation or between two raised ribs as described in 7.2.4.7.H Spacing of deformations shall not be greater than 7.24 mm nor less than 4.62 mm for all wire sizes.I See 7.2.4.3 for average number of deformations per unit length.Note 1—Welded wire for concrete reinforcement has historically been described by various terms: welded wire fabric, WWF, fabric, and mesh. The wire reinforcement industry has adopted the term welded wire reinforcement (WWR) as being more representative of the applications of the products being manufactured. Therefore, the term welded wire fabric has been replaced with the term welded wire reinforcement in this specification and in related specifications.1.2 Supplement S1 describes high-strength wire, which manufacturers furnish when specifically ordered. Manufacturers furnish high-strength wire in place of regular wire if mutually agreed to by the purchaser and the manufacturer.
1.3 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text the SI units are shown in brackets (except in Table 2 and Table 4). The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values may result in nonconformance with the specification.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.