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Indented PC Strand with Strong Bonding Force

Indented PC strand, also called indented PC steel strand, is twisted by several indented PC wires. The indented PC wire has a strong nature of bonding force, therefore the indented PC strand can further strengthen the bonding force with concrete. What’s more, it has a broad applications in many fields, such as PC constructions, PC hollow slabs and high-speed railway sleepers.

Two pieces of indented PC strand.
Indented PC strand with indented surface treatment can strengthen the boding force with concrete.
A piece of 1×3 indented PC strand.
Indented PC strand with high bonding force can widely used in PC constructions, PC hollow slabs, nuclear power projects, etc.


  • Material: high carbon steel.
  • Strand diameter: 4.8 mm - 15.7 mm.
  • Tensile strength: different Grade from 1470 MPa - 1860 MPa.
  • Surface treatment: indented.
  • Standards: GB/T 5223, ASTM A864, BS 5896, EN 10138, etc.
Indented PC strand's key parameter and reference standards
Appearance Nominal diameter (mm) Tensile strength (MPa) Relaxation (1000h) Standards
Seven wires in left-twist or right-twist with two or three sides indented 8.0, 9.3, 9.53, 11.1, 12.5, 12.7, 12.9, 15.2, 15.24, 15.7. 1770, 1860. Low relaxation ≤ 2.5% ASTM A416, BS 5896, EN 1038-3, AS/NZS 4672, GB/T 5224, JIS G 3536, UNE 36094.
Two wires in left-twist or right-twist with three sides indented 7.6, 8.6, 9.1. 1725, 1860. ABNT NBR 7483.
4.8, 5.2, 5.8, 6.2, 6.5, 7.5, 8.6. ASTM A910.


  • High tensile strength and low relaxation.
  • Firm connection with concrete.
  • Stable construction.
  • Saving material.
  • Increasing the abrasion resistance and water resistance.


  • PC constructions.
  • PC hollow slabs.
  • Nuclear power projects.
  • High-speed railway sleepers.
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