Nominal iameter

(mm)

Tensile strength not less than

(MPa)

Stress at 10% elongation not less than

(MPa)

Elongation (L=250mm) not less than

(%)

Number of torsion (times/360°)

1.25-2.25

1340

1170

3.0

18

2.25-2.75

1310

1140

3.0

16

3.00-3.50

1290

1100

3.5

14

3.50-4.25

1290

1100

4.0

12

Nominal iameter

(mm)

Weight of coating not less than

(g/m²)

Submergence times in Cupric sulfate not less than (60 seconds/times)

 Adhesion test of coating

Multiple of core rod with steel wire in diameter

No. of windings

1.25-1.50

185

2

Below 3.5 mm 4 times

8

1.51-1.75

200

2

1.76-2.25

215

3

Above 3.5 mm 5 times

2.26-2.75

230

3

2.76-3.50

245

4

3.51-3.80

260

4