Application
These PC strands are commonly applied in large concrete construction projects such as highways, bridges, airports, nuclear power plants, dams, and more.
Characteristic
The PC strand has outstanding ductility and low relaxation effects for excellent performance.
Grade | Nominal Dia. in (mm) | Tolerance Dia.in (mm) | Min. Difference Between Center Wire Diameter and Diameter of Any Outer Wire in (mm) |
Nominal Steel Area in2(mm2) |
Nominal Weight Lbs. /1000ft (g/m) |
250 | 1/2(12.70) | +0.016(+0.40) -0.016(-0.40) |
0.003(0.0762) | 0.144(92.9) | 490(730) |
6/10(15.24) | +0.016(+0.40) -0.016(-0.40) |
0.004(0.1016) | 0.216(0.1016) | 737(1094) | |
270 | 3/8(9.53) | +0.026(+0.65) -0.006(-0.15) |
0.002(0.0508) | 0.085(54.8) | 290(432) |
1/2(12.70) | +0.026(+0.65) -0.006(-0.15) |
0.003(0.0762) | 0.153(98.7) | 520(775) | |
6/10(15.24) | +0.026(+0.65) -0.006(-0.15) |
0.004(0.1016) | 0.217(140.00) | 740(1102) |
Grade | Nominal Dia.in (mm) | Min Breaking Strength Lbs (KN) | Min.Load at 1% Extension Lbs (KN) | Min.Total elongation at Max Load | ||
Low-Realaxation | Norminal Relaxation | in (mm) Jaw to jaw distance | Elonggation | |||
250 | 1/2 (12.70) | 36000 (160.1) | 32400 (144.1) | 30600 (136.2) | 24 (610) | 3.5 |
6/10 (15.24) | 54000 (240.2) | 48600 (216.2) | 45900 (204.2) | |||
270 | 3/8 (9.53) | 23000 (102.3) | 20700 (92.1) | 19580 (87.0) | 24 (610) | 3.5 |
1/2 (12.70) | 41300 (183.7) | 37170 (165.3) | 35100 (156.1) | |||
6/10 (15.24) | 58600 (260.7) | 52740 (234.6) | 49800 (221.5) |
Inital Load | %Max.%Relaxation After 1000hrs |
Low-Relaxation | |
70% Specified min.breaking strength | 2.5 |
80% Specified min.breaking strength | 3.5 |
BS 5896:1980 P.C. Strand
Strength Grade | Nominal Dia. (mm) | Tolerance Dia. (mm) | Min. Increment Between Center Wire Diameter and Diameter of Any Outer Wire, % |
Nominal Cross-section Area (mm2) |
Nominal Weight (kg/m) |
1670 | 15.2 | +0.40 -0.20 |
2 | 139 | 1090 |
1770 | 15.7 | +0.40 -0.20 |
2 | 150 | 1180 |
1860 | 12.9 | +0.40 -0.20 |
2 | 100 | 785 |
9.6 | +0.30 -0.15 |
2 | 55 | 432 |
Strength Grade | Nominal Dia. (mm) | Min. Breaking Strength | Min. 0.1% Proof Load | Min. Total Elongation at Max. Load | |
Jaw to Jaw Distance (mm) | Elongation, % | ||||
1670 | 15.2 | 232 | 197 | 500 | 3.5 |
1770 | 15.7 | 265 | 225 | ||
1860 | 12.9 | 186 | 158 | ||
9.6 | 102 | 87 |
Initial Load | Max. Relaxation after 1000hrs, % |
Low Relaxation | |
60% Specified min. breaking strength | 1.0 |
70% Specified min. breaking strength | 2.5 |
80% Specified min. breaking strength | 4.5 |
GB/T 5224-2003 eqv. ISO6934-91(4) PC STAND
Grade | Nominal Dia in (mm) | Tolerance Dia in (mm) | Center Wire Diameter Extra | Nominal Steel Area(mm2) | Nominal Weight(kg/m) |
1720 | 15.20 | +0.40 -0.20 |
2.5 | 140 | 1101 |
17.80 | +0.40 -0.20 |
2.5 | 191 | 1500 | |
1860 | 9.50 | +0.30 -0.15 |
2.5 | 54.8 | 430 |
12.70 | +0.40 -0.20 |
2.5 | 98.7 | 775 | |
15.20 | +0.40 -0.20 |
2.5 | 140 | 1101 | |
17.80 | +0.40 -0.20 |
2.5 | 191 | 1500 |
Grade | Nominal Dia in (mm) | Max. Load,KN | Yield Load. KN | Elongation % |
1720 | 15.20 | 241 | 217 | 3.5 |
17.80 | 327 | 294 | ||
1860 | 9.50 | 102 | 91.8 | |
12.70 | 184 | 166 | ||
15.20 | 260 | 234 | ||
17.80 | 353 | 318 |
Inital Load | %Max.%Relaxation After 1000hrs |
Low-Relaxation | |
70% Specified min.breaking strength | 2.5 |
80% Specified min.breaking strength | 4.5 |