ASTM A474-03(2013) PDF

Nominal
Diameter
of Strand,
in. (mm)

Number
of Wires
in
Strand

Nominal
Diameter
of Coated
Wires in
Strand, in.
(mm)

Approximate
Weight of
Strand,
lb/1000 ft
(kg/m)

Minimum Breaking Strength of Strand, lbf (kN)

Utilities Grade^A

Common
Grade

Siemens-
Martin
Grade

High-
Strength
Grade

Extra-High-
Strength
Grade

³/₁₆ 

(4.76)

7

0.062 (1.57)

 73 (0.108)

  . . .

. . .

 1 150

(5.1)

  1 900

(8.5)

  2 850

(12.7)

 . . .

. . .

³/₁₆ 

(4.76)

7

0.065 (1.65)

 80 (0.118)

  2 400

(10.7)  (1)^B

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

¹/₄ 

(6.35)

3

0.120 (3.05)

117 (0.173)

  3 150

(14.0)  (2)

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

¹/₄ 

(6.35)

3

0.120 (3.05)

117 (0.173)

  4 500

(20.0)  (3)

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

¹/₄ 

(6.35)

7

0.080 (2.03)

121 (0.179)

  . . .

. . .

 1 900

(8.5)

  3 150

(14.0)

  4 750

(21.1)

 6 650

(29.6)

⁹/₃₂ 

(7.14)

7

0.093 (2.36)

164 (0.243)

  4 600

(20.5)  (1)

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

⁵/₁₆ 

(7.94)

3

0.145 (3.68)

171 (0.253)

  6 500

(28.9)  (3)

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

⁵/₁₆ 

(7.94)

7

0.104 (2.64)

205 (0.303)

  . . .

. . .

 3 200

(14.2)

  5 350

(23.8)

  8 000

(35.6)

 11 200

(49.8)

⁵/₁₆ 

(7.94)

7

0.109 (2.77)

225 (0.333)

  6 000

(26.7)  (1)

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

³/₈ 

(9.52)

3

0.165 (4.19)

220 (0.326)

  8 500

(37.8)  (3)

 . . .

. . .

  . . .

. . .

  . . .

. . .

 . . .

. . .

³/₈ 

(9.52)

7

0.120 (3.05)

273 (0.404)

 11 500

(51.2)  (4)

 4 250

(18.9)

  6 950

(30.9)

 10 800

(48.0)

 15 400

(68.5)

⁷/₁₆ 

(11.11)

7

0.145 (3.68)

399 (0.591)

 18 000

(80.1)  (4)

 5 700

(25.4)

  9 350

(41.6)

 14 500

(64.5)

 20 800

(92.5)

¹/₂ 

(12.7)

7

0.165 (4.19)

517 (0.765)

 25 000

(111.2) (4)

 7 400

(32.9)

 12 100

(53.8)

 18 800

(83.6)

 26 900

(119.7)