Mechanical properties
|
strength grade
|
dia. of wire
|
tensile strength
|
stress by 1% elongate
|
elongation
Lo=250mm
|
torsion test
|
|
mm
|
MPa
|
MPa
|
%
|
time/360°
|
|
|
common-strength
|
＞1.24～2.25
|
1340
|
1170
|
3.0
|
16
|
|
＞2.25～2.75
|
1310
|
1140
|
3.0
|
16
|
|
|
＞2.75～3.00
|
1310
|
1140
|
3.5
|
16
|
|
|
＞3.00～3.50
|
1290
|
1100
|
3.5
|
14
|
|
|
＞3.50～4.25
|
1290
|
1100
|
4.0
|
12
|
|
|
high-strength
|
＞1.24～2.25
|
1450
|
1310
|
2.5
|
16
|
|
＞2.25～2.75
|
1410
|
1280
|
2.5
|
16
|
|
|
＞2.75～3.00
|
1410
|
1280
|
3.0
|
16
|
|
|
＞3.00～3.50
|
1410
|
1240
|
3.0
|
14
|
|
|
＞3.50～4.25
|
1380
|
1170
|
3.0
|
12
|
|
|
extra high-strength
|
＞1.24～2.25
|
1620
|
1450
|
2.0
|
14
|
|
＞2.25～2.75
|
1590
|
1410
|
2.0
|
14
|
|
|
＞2.75～3.00
|
1590
|
1410
|
2.5
|
12
|
|
|
＞3.00～3.50
|
1550
|
1380
|
2.5
|
12
|
|
|
＞3.50～4.25
|
1520
|
1340
|
2.5
|
10
|
Quality of Zinc Coating
|
Steel Wire Diameter
mm
|
Weight of Zinc coating
Not less than g/m2
|
Zinc coating firm property
|
|
|
dia. of cylindrical mandrel divided by nominal dia. of wire is
|
number of turns
|
||
|
＞1.24～1.50
|
185
|
4
|
8
|
|
＞1.50～1.75
|
200
|
||
|
＞1.75～2.25
|
215
|
||
|
＞2.25～3.00
|
230
|
||
|
＞3.00～3.50
|
245
|
||
|
＞3.50～4.25
|
260
|
5
|
|
