Spiral Ribbed PC Wire
High-carbon steel prestressed concrete wire with consecutive spiral ribs for exceptional bonding force — engineered for PC telegraph poles, hollow slabs, water pipes, prestressed structures, and road & bridge works to international standards including ASTM, BS, DIN, GB, AISI and JIS.
Product Overview
Spiral Ribbed PC Wire — also called spiral PC wire or spiral ribbed PC steel wire — is one of the traditional products in the PC wire range. Unlike plain PC wire, its surface features 3–6 consecutive spiral ribs that strengthen the bond between wire and concrete, extending structure service life.
Technical Specifications
Rib Structure Details
Dimension Parameters
Spiral Ribbed PC Wire dimension parameters — all sizes available from stock or made to order
SRPW Series — Wire Dimension Parameters
| Item | Size (mm) |
Tolerance (mm) |
Area (mm²) |
Theoretical Weight (g/m) |
Wire Cross-sectional Size | Rib Pieces |
Lay Length (mm) |
||
|---|---|---|---|---|---|---|---|---|---|
| Basic-round Diameter (mm) |
Out-round Diameter (mm) |
Rib Width (mm) |
|||||||
| SRPW-400 | 4.00 | ± 0.04 | 12.57 | 98.6 | 3.85 ± 0.05 | 4.25 ± 0.05 | 0.90 – 1.30 | 4 | 24 – 30 |
| SRPW-480 | 4.80 | 18.10 | 142 | 4.60 ± 0.05 | 5.10 ± 0.05 | 1.30 – 1.70 | 28 – 36 | ||
| SRPW-500 | 5.00 | 19.63 | 154 | 4.08 ± 0.05 | 5.30 ± 0.05 | 1.30 – 1.70 | 28 – 36 | ||
| SRPW-600 | 6.00 | ± 0.05 | 28.27 | 222 | 5.80 ± 0.05 | 6.30 ± 0.05 | 1.60 – 2.00 | 30 – 38 | |
| SRPW-625 | 6.25 | 30.68 | 241 | 6.00 ± 0.05 | 6.70 ± 0.05 | 1.60 – 2.00 | 30 – 40 | ||
| SRPW-700 | 7.00 | 38.48 | 302 | 6.73 ± 0.05 | 7.46 ± 0.10 | 1.80 – 2.20 | 35 – 45 | ||
| SRPW-800 | 8.00 | 50.26 | 394 | 7.75 ± 0.05 | 8.45 ± 0.10 | 2.00 – 2.40 | 40 – 50 | ||
| SRPW-900 | 9.00 | ± 0.06 | 63.62 | 499 | 8.75 ± 0.05 | 9.45 ± 0.05 | 2.10 – 2.70 | 42 – 52 | |
| SRPW-1000 | 10.00 | 78.54 | 616 | 9.75 ± 0.05 | 9.75 ± 0.05 | 2.50 – 3.00 | 45 – 58 | ||
Key Features
Why spiral ribbed PC wire outperforms plain PC wire in bonded prestressed concrete applications
High Bonding Force
Consecutive spiral ribs on the surface substantially increase bond strength between wire and concrete compared to plain PC wire.
High Tensile Strength
Tensile strength ranging from 1470 MPa to 1860 MPa with low relaxation (less than 2% over 1000 hours) for long-term performance.
Wide Range of Use
Suitable for prestressed concrete structures, building structures, reinforcing structures, and road and bridge structures.
Advanced Production
Manufactured on advanced production lines with necessary facility and examination equipment ensuring consistent quality.
Applications
Spiral Ribbed PC Wire is widely used across construction, infrastructure, and industrial applications
Prestressed Concrete Structures
PC pressure pipes, cement concrete pipes, and general prestressed concrete construction
Building Structures
Hollow floor boards, high-rise buildings and houses, nuclear power plants, stadiums, wall boards
Road & Bridge Structures
Bridges, subway, highway, and railway sleepers requiring high bonding performance
Reinforcing Structures
Rock-soil anchoring projects and dam construction requiring durable bonded reinforcement
Telegraph Poles & Towers
PC telegraph poles, TV towers, and communication infrastructure using bonded reinforcement
PC Hollow Slabs & Water Pipes
Hollow slabs, PC water pipes, and fluid-handling prestressed concrete infrastructure
Crane Beams & Girders
Crane beams, cement poles, panel, mines, free cutting steel, tubular piles, and girders
Slabs & Double-T Boards
Slabs, double-T boards, and large precast concrete structural elements
Applicable Standards
Spiral Ribbed PC Wire manufactured and tested in compliance with major international standards