Barre a filettatura continua CTB: caratteristiche tecniche Standard
Hot rolled Continuous Threaded Bars: technical details   
STD CODE LR20S LR25S LR28S LR32S LR40S LR50S LR57S LR63S
Nominal Diameter  mm 20 25 28 32 40 50 57,5 63,5
Steel Grade N/mm˛ 500/550 555/700
Load at Yield Min. kN 157 245 308 402 628 982 1441 1758
Ultimate Load Min. kN 169 265 332 434 678 1078 1818 2217
Agt % ≥ 6%
Average section mm˛ 314 490 615 803 1255 1963 2596 3167
Weight kg/m 2,47 3,85 4,83 6,31 9,86 15,41 20,38 24,86
Diameter min/max mm 20/23 25/29 28/32 32/36 40/45 50/56 57,5/63 63,5/70