Prestressed wire for Concrete Pole

High tensilesteel wire Categories: 1. according to diameter and can be categorized as: 4mm, 4.8mm, 5.0mm, 5.1mm, 6.0mm, 6.35mm, 7.0mm, 7.8mm, 8.0mm, 9.0mm, 10.0mm, 11mm, 12mm and so on. 2. according to intensity level can be classified as: 1470MPa, 1570MPa, 1670MPa, 1770MPa and 1860MPa so. 3. in accordance with the surface coating can be classified as: no coating prestressed steel wire, prestressed epoxy coated steel wire and galvanized prestressed steel wire. 4. in accordance with the surface morphology can be classified as: light round prestressed steel wire, spiral rib (spiral ribbed or helix grooved) prestressed steel wire, the pressure wave (crimped) prestressed steel wire or nicks (indented) prestressed steel wire and so on. 5. in accordance with treatment process can be categorized as follows: cold-drawn prestressing steel wire (no slack performance requirements) and low relaxation prestressed steel wire. A 421/A 421M-05 Tensile Strength Requirements Nominal Diameter,mm (in) Tensile Strength,min,Mpa(psi) Type BA Type WA 4.88(0.192) 1725(250 000) 4.98(0.196) 1655(240 000) 1725(250 000) 6.35(0.250) 1655(240 000) 1655(240 000) 7.01(0.276) 1620(235 000) 1620(235 000) Yield Strength Requirements Nominal Diameter,mm (in) Intial Stress MPa(psi) Minimum Stress at 1% Extension,MPa(psi) Type BA Type WA 4.88(0.192) 200(29 000) 1465(212 500) 4.98(0.196) 200(29 000) 1407(204 000) 1465(212 500) 6.35(0.250) 200(29 000) 1407(204 000) 1407(204 000) 7.01(0.276) 200(29 000) 1377(199 750) 1377(199 750) BS5896-1980Diameter anddeviationmmNominalsizemNominal Weightg/mMinimumbreaking loadKNNominal tensilestrengthMpa4.0±0.044.5±0.055.0±0.056.0±0.057.0±0.0512.6015.9019.6028.3038.5099.912515422230221.022.325.832.734.747.350.160.464.31670177016201670177016701770157016700.1% Test loadKN0.1% Nominalstress testMpa0.1% elongationwhen the loadKNThenumberofrepeatedbendingElongationLo=200MM%1000hours ofrelaxationrate%17.518.521.427.228.839.341.650.153.4139014701350139014701300139017.919.021.927.829.540.242.651.354.7Smooth wire≥4Nick wire≥3≥3.5≥3.5≥3.5≥3.5≥3.5≤2.5≤2.5≤2.5≤2.5≤2.5