About Prestressed Steel Strands/PC Strand/PC Wire
Prestressed steel strands are stranded steel cables consisting of 2, 3, 7 or 19 high-strength steel wires and treated for stress relief (stabilization), suitable for prestressed concrete and similar applications.
The main features of prestressed steel strands are high strength and good relaxation properties, and they are relatively straight when unfolded. The common tensile strength grade is 1860 MPa, and there are strength grades such as 1720, 1770, 1960, 2000, and 2100 MPa. The yield strength of this steel is also high.
Prestressed steel strands are mainly used in post-tensioned and pre-tensioned prestressed concrete projects.
Die-drawn strands are mainly used in lifting projects, but also in projects such as nuclear power.
19-wire large-diameter steel strands are often used for mine tunnel support anchor cables.
Unbonded prestressed steel strands are often used for building floors and some rock and soil anchor cables.
Galvanized steel strands are often used in bridge tie rods, stay cables and external prestressing projects. Epoxy-coated strands are used similarly to galvanized prestressed strands and are suitable for projects requiring high durability.
