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PC steel strand ASTM-A416/A416M-06ofSEVENWIREP.CSTRAND Grade Size-mm/(inch) Tolerance-mm/(inch) SectionalArea-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 Typeof strand Size/mm Nominal Tensile Strength N/mm2 Nominalsteel Area mm2 Nominal Massg/m Toleranceon Specifiedcharacteristic 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 Forallstrands +4% -2% Forall 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 Packingincoilswithsteelstripssecuredandwater-proofcompound