PC steel strand
(1)Structure: 1 x 3;1 x 7
(2)Dia:9.5mm-15.9mm
(3)Grade:250,270,1570-1860MPA, Standard: ASTM-A416, BS5896
ASTM- A416/ A416M- 06 of SEVEN WIRE P.C STRAND
Grade |
Size-mm/(inch) |
Tolerance-mm/ (inch) |
Sectional Area-mm2/ (inch2)
|
Theoretical Weight- Kg/1000m-(lb/1000ft) |
Minimum Breaking Strength-Kn/ (lbf) |
Minimum Elongation L0≥610mm% | Relaxation Value (1000hs) | |
Initial Load 70% | Initial Load 80% | |||||||
1725(250) | 6.4(0.250) 7.9(0.313) 9.5(0.375) 11.1(0.438) 12.7(0.500) 15.2(0.600) |
±0.40 (±0.016) | 23.2(0.036) 37.4(0.058) 51.6(0.080) 69.7(0.108) 92.9(0.144) 139.4(0.216) | 182(122) 294(197) 405(272) 548(367) 730(490) 1094(737) | 40.0(9000) 64.5(14500) 89.0(20000) 120.1(27000) 160.1(36000) 240.2(54000) |
3.5 |
≤2.5% |
≤3.5% |
1860(270) | 9.53(0.375) 11.11(0.438) 12.7(0.500) 13.20(0.520) 14.29(0.563) 15.24(0.600) 17.78(0.700) |
+0.65 -0.15 (+0.026) (-0.006) | 54.8(0.085) 74.2(0.115) 98.7(0.153) 107.7(0.167) 123.9(0.192) 140.0(0.217) 189.7(0.294) | 432(290) 582(390) 775(520) 844(568) 970(651) 1102(740) 1487(1000) | 102.3(23000) 137.9(31000) 183.7(41300) 200.2(45000) 230.0(51700) 260.7(58600) 353.2(79400) |
≤3.5 |
≤2.5% |
≤3.5% |
BS5896-1980
Type of strand |
Size/mm |
Nominal Tensile Strength N/mm2 |
Nominal steel Area mm2 |
Nominal Mass g/m |
Tolerance on | Specified characteristic breaking Load Kn | ||
Dia. mm | Cross-sectional /mm2 | Mass g/m | ||||||
7-wire standard | 15.2 12.5 | 1670 1770 | 138 93 | 1090 730 | +0.4 -0.2 |
For all strands +4% -2% |
For all strands +4% -2% | 232 164 |
11.0 9.3 | 1770 1770 | 71 52 | 557 408 | +0.3 -0.15 | 125 92 | |||
7-wire super | 15.7 12.9 | 1770 1860 | 150 100 | 1180 785 | +0.4 -0.2 | 265 186 | ||
11.3 9.6 8.0 | 1860 1860 1860 | 75 55 38 | 590 432 298 | +0.3 -0.15 | 139 102 70 | |||
7-wire drawn | 18.0 15.2 12.7 | 1700 1820 1860 | 223 165 112 | 1750 1290 890 | +0.4 -0.2 | 380 300 209 | ||
Packing in coils with steel strips secured and water-proof compound
