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Steel Strand for Prestressed Concrete
The products are mainly for the use of prestressed concrete structure reinforced.Such as large-span bridges on railway and highway,overhead crane beam,rock-soil anchoring Project,multi-storey industrial buildings,stadiums,coal mines and etc.
| SIZE | 9.3/9.53/12.7/12.9/15.24/15.7mm |
|---|---|
| STRANDARDS | ASTMA416/BS5837/EN10138/AS/NZS4672/GB |
| FEATURE | Low relaxation |
Standard of ASTM A416
| Grade | Nominal Diameter (mm) | Diameter Tolerance (mm) | Nominal Area (mm²) | Nominal Weight (KG/1000m) | Min Breaking Strength (KN) | Min Yield Strength (KN) | Min Elongation at Max Load (%) | Relaxation | ||
| Initial Load Of Mine Nominal Breaking Strength | 1000h Value No More Than | |||||||||
| 250 | 0.375 | 9.53 | ±0.4 | 51.61 | 405 | 89 | 80.1 | 3.50% | 60% 70% 80% | 1% 2.5% 4.5% |
| 0.438 | 11.11 | 69.68 | 548 | 120.1 | 108.1 | |||||
| 0.5 | 12.7 | 92.9 | 730 | 160.1 | 144.1 | |||||
| 0.6 | 15.2 | 139.35 | 1094 | 240.2 | 216.2 | |||||
| 270 | 0.375 | 9.53 | 0.65 -0.15 | 54.84 | 432 | 102.3 | 92.10% | |||
| 0.438 | 11.11 | 74.19 | 582 | 137.9 | 124.10% | |||||
| 0.5 | 12.7 | 98.71 | 775 | 183.7 | 165.30% | |||||
| 0.6 | 15.2 | 140 | 1102 | 260.7 | 234.60% | |||||
AS/NZS 4672.1:2007
| Type mm | Nominal Diameter MM | Tensile Strength MPa | Unit Weigh g/m | Min Elongation 500mm | Min breaking strength KN | 0.1%yield strength KN | 0.2%yield strength KN |
| Standard 7 wire | 9.5 | 1850 | 432 | 23.50% | 102 | 83.6 | 86.6 |
| 12.7 | 1870 | 774 | 184 | 151 | 156 | ||
| 15.2 | 1750 | 1122 | 250 | 205 | 212 | ||
| 15.2 | 1830 | 1122 | 261 | 214 | 222 | ||
| Compact 7 wire | 15.2 | 1820 | 1295 | 300 | 255 | 264 | |
| 18 | 1700 | 1750 | 380 | 323 | 334 |
BS589613-1980
| Type | Nominal Diameter MM | Tensile Strength MPa | Unit Weigh g/m | Min yield strength kN | Min breaking strength kN | Min Elongation L0>600m% | 1000h Value No more than |
| Standard 7 wire | 15.2 15.2 | 1670 1860 | 1090 1102 | 197 221 | 232 260 | 3.5(l≥500mm) | s2.5% |
| Super 7 wire | 12.9 15.7 15.7 | 1860 1770 1860 | 785 1180 1180 | 186 265 279 | |||
| Compact 7 Wire | 12.7 15.2 18.0 | 1860 1820 1700 | 890 1295 1750 | 209 300 380 |