01
Primary strand for major infrastructure
The most commonly specified strand size for long-span bridges, high-rise buildings and heavy civil works.
ASTM A416 Grade 270
Low Relaxation
7-Wire
260 kN MBL
Prestressed Concrete Strand
15.24mm ASTM A416 Low Relaxation PC Strand
ASTM A416 Grade 270 Low Relaxation
15.24mm (0.6 inch) 7-wire prestressing steel strand conforming to ASTM A416 Grade 270 low relaxation. The most commonly specified strand for large-scale bridge and building projects.
| Diameter | 15.24 mm (0.6 inch) |
|---|---|
| Grade | 270 ksi (1860 MPa) |
| Type | Low Relaxation |
| Structure | 7-wire |
| Min Breaking Load | 260 kN |
| Elongation | ≥ 3.5% |
Key features
Why engineers specify this strand
Four reasons 15.24 mm strand is the default size on major infrastructure packages.
02
Available in ASTM, BS, EN standards
Produced to the standard written in your approved specification — ASTM A416, BS 5896, EN 10138 and equivalents.
03
Third-party tested by SGS, BV
Tensile, elongation and relaxation tests are documented, with independent inspection available on request.
04
High efficiency for long-span design
Higher prestressing force per tendon reduces strand count and anchorage congestion in large post-tensioning systems.
Technical answer
What is 15.24 mm low-relaxation PC strand?
Definition
15.24 mm (0.6 inch) low-relaxation PC strand is a seven-wire, high-strength steel cable manufactured to ASTM A416 Grade 270 (1860 MPa) with a minimum breaking load of 260 kN and minimum elongation of 3.5%. It is the most commonly specified strand size for large-scale bridge and building projects because each tendon carries a higher prestressing force, which reduces the number of tendons and the anchorage congestion in the structure.
Typical applications include post-tensioned bridge girders and decks, high-rise slab and beam systems, precast elements, segmental construction, ground anchors and heavy civil works. Global Overseas produces the strand on German Mannesmann lines, supplies it in coils or cut lengths to project packing requirements, and can arrange third-party inspection by SGS, BV or Intertek before shipment from Qingdao. State the required coil weight or cut length, packing method and destination port in the inquiry so the offer matches your site handling.
Specification
What to state in the RFQ
Nominal diameter 15.24 mm, standard (ASTM A416, BS 5896 or EN 10138), grade, low-relaxation requirement, coil weight or cut length, quantity, packing method, destination port and any approved-vendor or inspection requirement.
Compatibility
Anchorage and equipment
Confirm the approved anchorage, wedge and jack interface before ordering. Strand selection must follow the project engineer’s drawings and the anchorage supplier’s compatibility requirements.
Related products
Other strand diameters
Prestressed Concrete Strand
9.53mm ASTM A416 Low Relaxation PC Strand
3/8 inch seven-wire strand for precast concrete and smaller tendons.
View details
Prestressed Concrete Strand
12.7mm ASTM A416 Low Relaxation PC Strand
1/2 inch seven-wire strand for bridges, buildings and ground anchors.
View details
Unbonded Strand
Unbonded PC Strand for Post Tension System
Grease-coated, PE-sheathed strand for slab and beam post-tensioning.
View detailsRequest a 15.24mm PC strand quotation
Send your standard, quantity, coil weight and destination port — our export team replies within one business day.