Pre-stressed Concrete Steel Wire

Pre-stressed Concrete Steel WireKinwey offers major three types of PC wire including plain surface, spiral ribs and indented pc wire, widely used in reinforcement for concrete industry, such as large-span bridges on railway and highway, overhead crane beam, rock-soil anchoring Project, multi-storey industrial buildings, stadiums, coal mines and etc.

PC wire is made following the standards of :
1.GB/T 5223-2002
2.ASTM A648
3.BS 5896-1980
4.ASTM A421


Material: High carbon steel
Nominal Dia.
(dn/mm)
Tolerance
(mm)
Tensile Strength
σb/MPa Not less than
Yield Strength
(σp0.2/Mpa)
Not less than
Elongation at max load
(Lo=200mm)
δgt/%
Not less than
Bending Times
(180°)
Not less than
Bending Radius R/mm Relaxation Properties
 The relaxation at 1000 h,
Initial load to 70% of nominal tensile strength (r/%)
Not more than
4.8 ±0.05 1470
1570
1670
1770
1860
1290
1380
1470
1560
1640
3.5 4 15 2.5
5.0
6.0 ±0.05 1470
1570
1670
1770
1290
1380
1470
1560
4 15
7.0 20
8.0 ±0.06 1470
1570
1290
1380
4 20
9.0 25

Nominal Dia.
(dn/mm)
No. of Helix Rib Lining Dia and Tolerance
(mm)
Outline Dia and Tolerance
(mm)
 Width of Single rib
(α/mm)
Layer length
(c/mm)
Nominal cross section
Sn/mm2
Re. mass per meter
(g/m)
4.00 4 3.85±0.05 4.25±0.05 0.90~1.30 24~30 12.57 98.6
4.80 4.60±0.05 5.10±0.05 1.30~1.70 28~36 19.63 154
5.00 4.80±0.05 5.30±0.05
6.00 5.80±0.05 6.30±0.05 1.60~2.00 30~38 28.27 222
6.25 6.0±0.05 6.70±0.05 30~40 30.68 241
7.00 6.73±0.05 7.46±0.10 1.80~2.20 35~45 38.48 302
8.00 7.75±0.05 8.45±0.10 2.00~2.70 40~50 50.26 394
9.00 8.75±0.05 9.45±0.10 2.10~2.70 42~52 63.62 499