This product is mainly for the use of prestressed concrete structure reinforcement.Such as large-span bridges on railway and highway ,overhead crane beam,rock-soil anchoring project,multi-storey in dustrial building,stadiums,coal mines and etc.
Item | PC Strand |
Specification |
1 x 7 wire, 9.53mm, 12.7mm, 15.2mm, 15.7mm, 17.8mm, 21.8mm |
Appliacation | Widely Used for any aqueduct, viaduct, bridge, tunnel and railway construction |
Certificate | ISO9001:2008 SGS |
Standard | ASTM A416, BS5896, JIS G3536, GB/T5223, EN10138 |
Output | 100, 000 ton/year |
Features | High tensile, low relaxtion |
Twist | Left and right hand lay |
Factory Test | Norminal diameter, breaking force, elongation at rupture, tensile strenght, stress relaxastion property, relax value at 1000h |
Packing | Standard Export Package (Wrapped by steel strips, waterproof cloth sheet, wooden pallet) |
Original | Wuhu or Shanghai, China |
Payment | T/T, L/C |
DeliveryTime |
within 10-15 days after we receive your deposit or LC.
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7-Wire Uncoated Steel Strand for Prestressed Concrete
ASTM A 416 Low Relaxation | ||||||
Grade MPa [ksi] |
Nominal Diameter of Strand mm [in.] |
Min. Breaking kN [lbf] |
Steel Area mm2 [in.2] |
Weight of kg/km [lb/kft] |
Min. load kN[lbf] |
Min. % |
1860 |
9.53 [0.375] | 102.3 [23 000] | 54.8 [0.085] | 432 [290] | 92.1 [20 700] |
3.5 (l≥600mm) |
11.11 [0.438] | 137.9 [31 000] | 74.2 [0.115] | 582 [390] | 124.1 [27 900] | ||
12.70 [0.500] | 183.7 [41 300] | 98.7 [0.153] | 775 [520] | 165.3 [37 170] | ||
13.20 [0.520] | 200.2 [45 000] | 107.7 [0.167] | 844 [568] | 180.1 [40 500] | ||
15.24 [0.600] | 260.7 [58 600] | 140.0 [0.217] | 1102 [740] | 234.6 [52 740] | ||
Relaxation Properties | ||||||
Initial Load of Specified Breaking Load | 70% | 80% | ||||
Max. Relaxation After 1000hrs @20±2℃ | 2.5% | 3.5% |
British standard(BS5896):
Strand type | Norminal Diameter | Tolerance | Area of section |
Theoretical Weight per 1000 meter |
Tensile Strength |
Specified characteristic Breaking load |
Specified Characteristics 0.1%yield intinal load |
Load at 1% Elongation L0≥500 |
Minimum Elongation At Max Load |
Relaxation Value 1000h | ||
mm | mm | Mm2 | kg | N/mm2 | KN | KN | % | |||||
Standard 7-wire |
9.3 | +0.3 | 52 | 408 | 1770 | 92 | 78 | 81 |
3.5 |
1.0 |
2.5 |
4.5 |
-0.15 | ||||||||||||
11 | +0.3 | 71 | 557 | 1770 | 125 | 106 | 110 | |||||
-0.15 | ||||||||||||
12.5 | +0.4 | 93 | 730 | 1770 | 164 | 139 | 144 | |||||
-0.2 | ||||||||||||
15.2 | +0.4 | 139 | 1090 | 1670 | 232 | 197 | 204 | |||||
-0.2 | ||||||||||||
Super 7-wire |
9.6 | +0.3 | 55 | 432 | 1860 | 102 | 87 | 90 |
3.5 |
1.0 |
2.0 |
2.0 |
-0.15 | ||||||||||||
11.3 | +0.3 | 75 | 590 | 1860 | 139 | 118 | 122 | |||||
-0.15 | ||||||||||||
12.9 | -0.15 | 100 | 785 | 1860 | 186 | 158 | 163 | |||||
+0.4 | ||||||||||||
15.7 | +0.4 | 150 | 1180 | 1770 | 265 | 225 | 233 | |||||
-0.2 | ||||||||||||
Die-Drawn 7-wire |
12.7 |
+0.4 -0.2 |
112 | 890 | 1860 | 209 | 178 | 184 |
3.5 |
1.0 |
2.0 |
2.0 |
15.2 | 165 | 1295 | 1820 | 300 | 255 | 264 | ||||||
18 | 223 | 1750 | 1700 | 380 | 323 | 334 |
Japanese standards JIS G3536:
Steel Grade | Norminal Diameter | Tolerance | Area of section |
Theoretical Weight per 1000 meter |
Breaking Load |
Load at 0.2% Permaneat elongation |
Minimum Elongation At Max load≥ |
Relaxation Value ≤ |
mm | mm | Mm2 | kg | ≥KN | ≥KN | % | % | |
SWPR7A | 9.3 |
+0.4 -0.2 |
51.61 | 405 | 88.8 | 75.5 |
3.5 |
3.0 |
10.8 | 69.68 | 546 | 120 | 102 | ||||
12.4 | 92.90 | 729 | 160 | 136 | ||||
15.2 | 138.70 | 1101 | 240 | 204 | ||||
WEPR7B | 9.5 |
+0.4 -0.2 |
58.84 | 432 | 102 | 86.8 | ||
11.1 | 74.19 | 580 | 138 | 118 | ||||
12.7 | 98.71 | 774 | 183 | 156 | ||||
15.2 | 138.70 | 1101 | 261 | 222 |
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