Low-Carbon Self-Drilling Anchor Bolt System
Low-carbon products are self-drilling hollow anchoring systems manufactured using low-carbon steel through optimized materials and production processes. They combine high strength with good ductility and toughness, providing effective anchorage in challenging fractured ground conditions while significantly reducing carbon emissions.
Key Features of Low-Carbon Products
The low-carbon anchoring system integrates drilling, grouting, and anchoring into a single installation process. The materials comply with the requirements of GB/T 1591 for low-alloy high-strength structural steels and meet the material requirements of EN 10210. By using low-carbon alloy steel instead of conventional carbon steel, the product offers advantages including reduced material-related energy consumption, lower carbon emissions, and efficient construction.
Hollow Anchor Bar
| Size | Outer Dia. | Ultimate Load | Yield Load | Weight | ||||
| mm | in | KN | Kips | kN | Kips | kg/m | Lbs/ft | |
| SDR32 | 32 | 1.26 | 250 | 56 | 190 | 43 | 3.15 | 2.12 |
| SDR38 | 38 | 1.50 | 420 | 95 | 350 | 79 | 5.50 | 3.70 |
| SDR32 | 32 | 1.26 | 250 | 56 | 200 | 45 | 3.50 | 2.35 |
| SDR32 | 32 | 1.26 | 280 | 63 | 230 | 52 | 3.50 | 2.35 |
| SDR38 | 38 | 1.50 | 500 | 113 | 400 | 90 | 5.70 | 3.83 |
| SDR38 | 38 | 1.50 | 550 | 124 | 450 | 101 | 6.10 | 4.10 |
| SDR38 | 38 | 1.50 | 550 | 124 | 450 | 101 | 5.90 | 3.96 |
| SDR38 | 38 | 1.50 | 500 | 113 | 400 | 90 | 5.50 | 3.70 |
| SDT30 | 30 | 1.18 | 236 | 53 | 190 | 43 | 2.70 | 1.81 |
| SDT30 | 30 | 1.18 | 326 | 73 | 255 | 57 | 3.28 | 2.20 |
| SDT40 | 40 | 1.57 | 539 | 121 | 430 | 97 | 6.30 | 4.23 |
| SDT40 | 40 | 1.57 | 660 | 149 | 525 | 118 | 7.20 | 4.84 |
| SDT52 | 52 | 2.05 | 925 | 208 | 730 | 164 | 10.50 | 7.06 |
| SDT52 | 52 | 2.05 | 913 | 205 | 635 | 143 | 8.57 | 5.76 |
| SDT73 | 73 | 2.87 | 1575 | 354 | 1270 | 286 | 18.50 | 12.43 |
| SDT73 | 73 | 2.87 | 1258 | 283 | 975 | 219 | 13.87 | 9.32 |
| SDT76 | 76 | 2.99 | 1800 | 405 | 1400 | 315 | 23.50 | 15.79 |
| SDT103 | 103 | 4.06 | 3660 | 824 | 2670 | 601 | 44.60 | 29.97 |
| SDT103 | 103 | 4.06 | 2244 | 505 | 1770 | 398 | 25.31 | 17.01 |
