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1.1 This specification covers carbon-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 Units^A

Size Number^{B , C, D}

Nominal 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 Units^A

Size Number^{B , C, D}

Nominal 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 Units

Nominal Dimensions

Deformation Requirements

Deformed Wire Size^{A, B, C, D}

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 Units

Nominal Dimensions

 

Deformation Requirements

Deformed Wire Size^{A, B, C, D}

D [in.²  × 100]

Unit Mass, kg/m

Diameter, mm^E

Cross-Sectional Area, mm^2 F

Minimum Average Height of Deformations, mm^{G, 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 Supplementary Requirements describe 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.