How to made PC Strand?

PC Strand, or prestressed concrete steel strand, is a twisted steel cable composed of high strength steelwires that are stress-relieved (stabilized) for use in producing prestressed concrete.

Common sizes: 9.3,9.53,12.7, 15.24,15.7,17.8,21.8mm etc.

Raw Materials: High-carbon steel wire rods, SWRH 82B

Processing: Continuous drawing by means of big reduction of area, twist, stabilizing treatment.

The main characteristic of the prestressed steel strand is high strength and relaxation performance is good, the other when the more straight. Common tensile strength levels of 1860 MPa, as well as 1720, 1770, 1960, 2000, 2100 MPa and the like intensity levels. The yield strength of this steel is also higher.

In most of the post-tensioned and pre-tensioned prestressed project, smooth steel strand is the most widely used prestressed steel. Stranded strand is mainly used to enhance the project, but also for nuclear power and the like works. Galvanized steel strand commonly used in the bridge of the tie rod, cable and external prestressing works. Epoxy coated steel stranded wire is similar to galvanized prestressed steel wire.

Countries have standards for prestressed strand, such as: China Standard GB / T 5224, American Standard ASTM A416, British standard BS 5896 and the Japanese standard JIS G3536, the Australian standard AS / NZS 4672, Brazilian standard NBR-748。