| SSSI Hollow Core Bar | Nominal Outer Diameter | Nominal Inner Diameter | Area | Weight | Ultimate Strength | TENSILE YIELD POINT | GRADE | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Part Number | BAR SIZE | in | mm | in | mm | [in2] | [mm2] | lbs / ft | kg / m | Kips | kN | Kips | kN | KSI | |
| HC3823B | RB38/23 | 1.5 | 38 | 0.91 | 23 | 0.99 | 640 | 3.4 | 5 | 119.1 | 530 | 95.5 | 425 | 96 | |
| HC5128B | RB51/28 | 2.01 | 51 | 1.34 | 34 | 1.58 | 1020 | 5.4 | 8 | 188.8 | 840 | 155.1 | 690 | 98 | |
| HC6343B | RB63/43 | 2.48 | 63 | 1.85 | 47 | 2.11 | 1360 | 7.2 | 10.7 | 260.8 | 1160 | 209.1 | 930 | 99 | |
| HC7656B | RB76/56 | 2.99 | 76 | 2.28 | 58 | 2.88 | 1860 | 9.8 | 14.6 | 310.2 | 1380 | 247.3 | 1100 | 86 | |
| HC10383B | TB103/83 | 4.06 | 103 | 3.27 | 83 | 3.91 | 2520 | 13.3 | 19.8 | 359.7 | 1600 | 287.7 | 1280 | 74 | |
| HC10378B | TB103/78 | 4.06 | 103 | 3.11 | 79 | 4.78 | 3080 | 16.3 | 24.2 | 445.1 | 1980 | 357.4 | 1590 | 75 | |
| HC10351S | TB103/51 | 4.06 | 103 | 2.05 | 52 | 8.54 | 5510 | 29.1 | 43.3 | 822.8 | 3660 | 600.2 | 2670 | 71 | |
| HC13092S | TB130/92 | 5.12 | 130 | 3.7 | 94 | 9.58 | 6180 | 32.6 | 48.5 | 899.9 | 4003 | 720 | 3203 | 75 | |
| HC13060S | TB130/60 | 5.12 | 130 | 2.64 | 67 | 14.79 | 9540 | 50.3 | 74.9 | 1784.9 | 7940 | 1180.2 | 5250 | 80 | |
| HC13575S | TB135/75 | 5.31 | 135 | 3.23 | 82 | 13.02 | 8400 | 44.3 | 65.9 | 1213.9 | 5400 | 971.1 | 4320 | 75 | |
The use of Hollow Core Bars, or Self-Drilling bars, is becoming more popular in the Deep Foundations field. From tiebacks and tiedowns in support of excavation applications, to piles in structural foundations, the use of Hollow Core Bars is expanding. Stressbar Steel Systems International, Inc. (SSSI), offers full-length threaded, high capacity, Hollow Core Bars, ranging from 1-1/2" (38 mm) nominal, to 5-5/16" (135 mm). Our Super Hollow Core Bars – T103/51, T135/75, & T130/60, have greater steel areas, which significantly increase pile load capacities. Consequently, they efficiently reduce the required number of drilled holes in any given site. SSSI’s Hollow Core Bars have been successfully used in projects accomplishing design compression load capacities up to 300 tons. As an added benefit, SSSI’s in-house engineering staff with over 25 years of experience in the Deep Foundations field can provide value engineering services for optimizing any of your upcoming projects.