Strand

category

Diameter

(mm)

Tensile

Strength

Grade

(Mpa)

standard

Minimum

Breaking

Load(KN)

0.1%

Minimum

load at

0.1   percent

extension

(KN)

1%

Minimum

Load at

1        percent

extension

(KN)

Elogation

%

L0≥500mm

1000h

Relaxation value

1000hours not

more than

Initialload//Grade

PC steel strand

12.70mm

1920

GB,ASTM

AISI,JIS

DIN,BS

209

175

181

3.5

80%

4.5%

15.20mm

1920

300

256

206

3.5

70%

2.5%

17.80mm

1860

380

348

256

3.5

60%

1.0%