Table 1. Initial Settings for Determining Stress 1% Extension

Nominal Diameter of Galvanized Steel Wire

Initial Stress N/mm²

Initial Setting of Extensometer mm/mm

>

<

mm

mm

1.18

2.24

95

0.05

2.24

3.15

190

0.10

3.15

5.00

285

0.15

Table 2. Tensile Strength and Stress at 1% Elongation

Nominal Diameter of Galvanized Steel Wire

Tensile Strength minimum N/mm2

Stress at 1% elongation minimum N/mm2

>

<

mm

mm

1.18

2.24

1400

1180

2.24

3.15

1320

1140

3.15

5.00

1320

1100

Table 3. Properties for High Strength Galvanized Steel Wire for ACSR

Tensile strength grade N/mm2, min.

1550

1700

1800

Nominal diameter of galvanized wire

Min. stress at 1% elongation

Min. elongation L₀⁺=200mm%

Steel wrap test dia.

Min. stress at 1% elongation

Min. elongation L₀⁺=200mm%

Steel Wrap test dia.

Min. stress at 1% elongation

Min. elongation L₀⁺=200mm%

Steel wrap test dia.

>

mm

mm

1.18

1.32

1260

3.0

1d

1320

3.0

2d

1370

3.0

3d

1.32

1.80

1260

3.5

1d

1320

3.0

2d

1370

3.0

3d

1.80

2.24

1260

3.5

2d

1320

3.0

2d

1370

3.0

3d

2.24

2.72

1260

3.5

2d

1320

3.5

3d

1370

3.0

3d

2.72

2.90

1260

3.5

2d

1320

3.5

3d

1370

3.0

3d

2.90

4.00

1220

4.0

3d

1280

3.5

3d

-

-

-

4.00

5.00

1220

4.0

3d

-

-

-

-

-

-

d=Nominal diameter of galvanized wire

L₀= Original Gauge Length

Table 4. Conversions of Tensile Strength and Stress at 1% Elongation

N/MM²

tonf/in²

1100

71.2

1140

73.8

1180

76.4

1220

79.0

1260

81.6

1280

82.9

1320

85.5

1370

88.7

1400

9.07

1550

100.4

1700

110.1

1800

116.6