Rope Thread Self Drilling Hollow Bar
Rope Threaded Hollow Bars
Thread Profile: All rope thread, commonly referred to as fully rope threaded, continuously threaded. The Rope Thread is according to ISO 10208
Steel Material: C45E/S460NH
Surface Treatment: Galvanized or Epoxy coating when necessary.
Others: Chamfered, stamped or color coded for grade identification when necessary.
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SELF DRILLING HOLLOW BAR
Charicteristics

Higer Capacity
Longer Retention Period
Agt > 5%
Rm/Rp0.2 > 1.15

Quality Improvement
Lower Deviation Value
Quality Stability
Standard Product Sampling

Higher Procision
Better Appearance
More Satisfied Customers
ROPE THREAD IBO BARS
TECHNICAL DATA
R25 | R32L | R32N | R32S | R32SS | R38 | R51L | R51N | |
---|---|---|---|---|---|---|---|---|
Average Inner Diameter | 12.0 mm | 21.5 mm | 20.5 mm | 17.0 mm | 15.0 mm | 22.0 mm | 39.0 mm | 34.0 mm |
Cross-Sectional Area | 230 mm² | 304 mm² | 365 mm² | 440 mm² | 520 mm² | 519 mm² | 700 mm² | 900 mm² |
Yield Load | 150 kN | 160 kN | 230 kN | 280 kN | 330 kN | 400 kN | 450 kN | 630 kN |
Ultimate Tensile Load | 200 kN | 210 kN | 280 kN | 360 kN | 400 kN | 500 kN | 550 kN | 800 kN |
Yield Stress | 650 Mpa | 526 Mpa | 630 Mpa | 640 Mpa | 630 Mpa | 770 Mpa | 640 Mpa | 700 Mpa |
Ultimate Stress | 870 Mpa | 690 Mpa | 770 Mpa | 820 Mpa | 770 Mpa | 960 Mpa | 790 Mpa | 880 Mpa |
Weight | 1.80 kg/m | 2.60 kg/m | 2.90 kg/m | 3.40 kg/m | 4.10 kg/m | 4.00 kg/m | 5.60 kg/m | 7.00 kg/m |
Elongation Agt | > 5% | > 5% | > 5% | > 5% | > 5% | > 5% | > 5% | > 5% |