PC Wires
PC wires are widely used in many industries. Prestressed concrete strand came into practice in the 1950s. However, the basic principles of prestressing are not only applicable to PC wire, but have also been used in many applications in ancient times. A good example is the iron hoop cylinder, which applies a certain amount of pressure to a loose cylinder wedge to form the cylinder and withstand sufficient lateral water pressure. This was the early principle of prestressing.
Types of PC Wire
1. By the diameter: 4mm, 4.8mm, 5.0mm, 5.1mm, 6.0mm, 6.25mm, 7.0mm, 7.8mm, 8.0mm, 9.0mm, 9.5mm, 10.0mm, 11mm, 12mm, etc.
2. By surface coating: non-coated PC wire, epoxy coated PC wire and galvanized PC wire.
3. By strength level: medium strength PC wire 800~1200MPa; high strength PC wire 1470MPa, 1570MPa, 1670MPa, 1770MPa and 1860MPa, etc.
4. By treatment process: cold-drawn PC wire (no relaxation performance requirements) and low relaxation PC wire.
5. By the surface form: bright round PC wire, spiral ribbed or helix grooved PC wire (left or right rotation), crimped PC wire or indented PC wire (two-sided indentation, three-sided indentation, four-sided indentation), etc.