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Technical Data of Uncoated Seven-Wire PC Strand under ASTM A416-1998 & ASTM A416-2002 Standard
Grade | Nominal Diameter of Strand | Tolerance of Diameter | Minimum Breaking Strength of Strand | Minimum Load at 1% Extension(Yield Strength) | Minimum Elongation(Gauge Length 610mm/24inch min) | Nominal Area of Strand | Nominal Weight of Strand (approx) | Maximum Relaxation Loss after 1000 hours | |
Initial Load70% | Initial Load80% | ||||||||
Ksi(Mpa) | mm(in) | mm(in) | KN(lbf) | KN(lbf) | % | mm2(in2) | kg/1000m(lb/1000ft) | % | |
250 (1725) | 9.53(3/8 - 0.375) | +/-0.40(+/-0.016) | 89.0(20000) | 80.1(18000) | 3.5 | 51.61(0.080) | 405(272) | 2.5 | 3.5 |
11.11(7/16 - 0.438) | 120.1(27000) | 108.1(24300) | 69.68(0.108) | 548(367) | |||||
12.70(1/2 - 0.500) | 160.1(36000) | 144.1(32400) | 92.90(0.144) | 730(490) | |||||
15.24(6/10 - 0.600) | 240.2(54000) | 216.2(48600) | 139.35(0.216) | 1094(737) | |||||
270(1860) | 9.53(3/8 - 0.375) | +0.65/-0.15(+0.026/-0.006) | 102.3(23000) | 92.1(20700) | 3.5 | 54.84(0.085) | 432(290) | 2.5 | 3.5 |
11.11(7/16 - 0.438) | 137.9(31000) | 124.1(27900) | 74.19(0.115) | 582(390) | |||||
12.70(1/2 - 0.500) | 183.7(41300) | 165.3(37170) | 98.71(0.153) | 775(520) | |||||
15.24(0.6 - 0.600) | 260.7(58600) | 234.6(52740) | 140.00(0.217) | 1102(740) | |||||
unbonded strand