Cold drawn pre-stressed steel wire is made of high quality carbon steel rods by surface treatment and cold drawn. The carbon content of steel is in the range of 0.6-0.9. Wash phosphating or other forms of surface treatment, after cold drawing cross-sectional area will generally be reduced by 50-85%, through the cold hardening principle to improve the strength.
Cold drawn pre-stressed steel wire, such as Stabilizing, becomes a low relaxation pre-stressed steel wire that achieves low relaxation properties and significantly improves yield strength, elongation and straightness. If galvanized after the galvanized pre-stressed steel wire, galvanized after stabilization of the wire is called low relaxation galvanized pre-stressed steel wire. The wire is generally delivered in a coil and applied to the rail sleeper, and can be cut and bundled as needed.
冷拉(cold drawn)预应力钢丝用优质高碳钢盘条(high carbon wire rod)经表面处理后冷拔而成，钢的含碳量在0.6-0.9的范围选择，冷拔前要经过酸洗磷化或其它形式的表面处理，冷拔后横截面积一般会减少50-85%，通过冷加工硬化原理提高强度。
冷拔预应力钢丝如再经稳定化处理(Stabilizing)，就成为低松弛(low relaxation)预应力钢丝，获得低松弛特性，并明显改善屈服强度、延伸率和伸直性。如果经过镀锌就成为镀锌预应力钢丝，镀锌后经过稳定化处理的钢丝称为低松弛镀锌预应力钢丝。钢丝一般按盘卷状(coil)交付，应用于轨枕(railway sleeper)时，可根据需要定尺切断成捆交付。
Diameter: 4.00mm – 9.00mm.
标准：Standards: ASTM A421, ASTM A 881/A 881M, BS5896, JISG3536, ISO6934, EN10138, GB/T5223 or according to customers’ requirements.
According to intensity level can be classified as: 1470MPa, 1570MPa, 1670MPa, 1770MPa and 1860MPa so.
We offers major three types of PC wire including plain surface PC wire, spiral ribs PC wire 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 Application:
PC Wire have a wide range of use, such as bridges, crane beams, cement poles, pre-stressed concrete pressure pipe, multi-factory frameworks, subway, railway sleepers, poles, dams, nuclear power plants, high-rise buildings and houses, anchor, railway sleepers, panel, and concrete pipes, etc.