Nominal

diameter

(mm)

Allowed

tolerance

(mm)

Tensile strength

σP0.2 not less than

(Mpa)

Un-proportional

Extension stress

σP0.2 not less than

(Mpa)

AgtLo=200mm

Total elongation

Under max.force

Lo = 200mm

not less than(%)

Bending test

Relaxation

/180°

Bending test

Times /180°

not less than

Radius

(mm)

%

Initial stress

Of % tensile

strength

1000h%

Loses of stress 1000 hours

not more than %

4.00

±0.05

1470

1570

1670

1770

1860

1290

1380

1470

1560

1640

3.5

3

10

70

2.0

4.80

4

15

70

2.0

5.00

4

15

70

2.0

6.00

1470

1570

1670

1770

1290

1380

1470

1560

4

15

70

2.0

6.25

4

20

70

2.0

7.00

±0.10

4

20

70

2.0

8.00

1470

1570

1290

1380

4

20

70

2.0

9.00

4

25

70

2.0

10.00

1470

1290

4

25

70

2.0

12.00

4

30

70

2.0