7mm 1670MPa Prestressed Wire

7mm 1670MPa Prestressed WireDescription: steel wire for pre-stressed concrete, pre-stressing steel wire, high carbon steel wire for pre-tensioning, high tensile low relaxation steel wire, stress-relieved steel wire
Application: cement concrete poles, concrete railways sleepers etc.
Diameter: 3mm, 3.2mm, 3.4mm, 3.8mm, 4mm, 4.8mm, 5mm, 6mm, 7mm, 7.5mm, 8mm, 9mm, 9.5mm, 10mm
Raw Material: high carbon steel wire rod SWRH77B, SWRH82B and other grade.
Standard: ASTMA421, AS/NZS4672, ABNT NBR7482, BS5896-1980, EN10138-2, GB/T5223, JIS G3536, KSD 7002
Surface: plain/smooth, spiral/helical ribs, indent
Tensile Strength: 1470Mpa, 1570Mpa, 1670Mpa, 1770Mpa, 1860Mpa.
Relaxation on 1000 hours: 2.5% max; Elongation at breakage: 3.5% min
Export Packing: baling strip, inside plastic cover, outside PP packing cloth;
Package Weight: 800kg-1600kg
Application: cement electricity poles, railway sleeper, subway track board, concrete piles, beams, girders, slabs, hollow floor board, double-T board, PHC, PPCP.
Technical Specifications and ParametersDiameter
(mm)Tolerance
(mm)Tensile Strength
Min
(MPA)Yield Strength
Min (σp0.2/MPA)
Elongation at
breaking load
(Lo=200mm)
Min (%)
Bending Times
MinBending Radius
R/mmRelaxation ValueThe relaxation at 1000h
(Initial load to 70% of
breaking load) Max (%)3.5±0.051470
1570
1670
1770
18601290
1380
1470
1560
16403.54152.04.04.85.06.0±0.051470
1570
1670
17701290
1380
1470
15604157.0207.58.0±0.061470
1570
16701290
1380
14704209.025Dimensions and Tolerance of Spiral Ribbed PC WireNominal Dia.No.of HelixLining Dia.Width of singleSection AreaRe. Mass
per meter(mm)RibsTolerance (mm)Rib (α/mm)mm2(g/m)4.0043.85±0.050.90~1.3012.5798.64.8044.60±0.551.30~1.7018.091425.0044.80±0.0519.631546.0045.80±0.051.60~2.0028.272226.2546.0±0.0530.682417.0046.73±0.051.80~2.2038.483027.5047.26±0.051.90~2.3044.183478.0047.75±0.052.00~2.4050.263949.0048.75±0.052.10~2.7063.624999.5049.30±0.052.20~2.8070.8855610.0049.75±0.052.50~3.0078.5461611.00410.76±0.052.60~3.1095.0374612.00411.78±0.052.70~3.20113.1888