P.C Strands

High-tensile prestressed concrete strands engineered to international standards for the most demanding structural applications — from bridges and dams to industrial buildings and post-tensioned slabs.

P.C 7 Wire Strands (Uncoated)

Used in prestressing and post-tension concrete structures. Available in two types: Low-Relaxation and Stress-Relieved (Normal-Relaxation).

Specifications

Nominal Diameter 9.53 mm (3/8"), 12.7 mm (1/2"), 15.2 mm (0.6") — Prestressed concrete 7-wire strand

Tensile Strength 1670 MPa, 1770 MPa, 1860 MPa & 1960 MPa

Construction 7-wire prestressed concrete strand

Standard ASTM 416, BS 5896, JIS G 3536

Application Reinforcement of prestressed concrete structures: large-span railway and road bridges, major bridges, silos, buildings, dams, floor slabs, foundations, large concrete vessels, atomic reactor buildings, stadiums, airport hangers, pre-cast segments, crane beams, anchorages, multi-storey industrial buildings, highways, poles, water towers, rock and earth anchoring.

Product Gallery

American Standard ASTM A 416

Mechanical properties and performance data for Grade 250 and Grade 270 strands

ASTM A 416 – Technical Data Table

Grade	Nominal Diameter	Tolerance (mm)	Cross-Section Area (mm²)	Theoretical Weight per 1000 m (kg)	Breaking Load (KN)	Min. Load at 1% Elong. (KN)	70% Force (KN)	80% Force (KN)	Elongation (%)	Slack Value 1000 hrs
250	9.53 mm (3/8")	±0.40	51.61	405	89.0	80.1	3.5	2.5	3.5	—
	11.11 mm (7/16")		69.68	548	120.1	108.1
	12.7 mm (1/2")		92.9	730	160.1	144.1
	15.24 mm (0.6")		139.35	1094	240.2	216.2
270	9.52 mm (3/8")	0.65 – 0.0006	54.84	432	102.3	92.1	3.5	2.5	3.5	—
	11.11 mm (7/16")	0.66 – 0.015	74.19	582	137.9	124.1
	12.7 mm (1/2")	—	98.71	775	183.7	165.3
	15.24 mm (0.6")	—	140	1102	260.7	234.6

Applications

P.C Strands are used across a wide range of structural and civil engineering projects

Bridges & Major Structures

Large-span railway bridges, road bridges, major bridges and cable-stayed bridges

Buildings & Stadiums

Multi-storey industrial buildings, stadiums, airport hangers and atomic reactor buildings

Dams & Water Projects

Dams, water towers, water control projects and large concrete vessels

Floors & Foundations

Floor slabs, foundations, pre-cast segments and crane beams

Civil Construction

Highways, poles, silos and energy source sea transportation facilities

Residential Projects

House buildings and anchorages in civil construction

Rock & Earth Anchoring

Rock and earth anchoring components to increase tensile force

Mining

PC strand used in mining operations and related infrastructure

Common Packing

Standard coil packing dimensions and wrapping for export and domestic shipment