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Ribbed Rebar

Le rond à béton de Sidenor est fabriqué selon un procédé élaboré permettant d’obtenir des aciers avec de bonnes caractéristiques garantissant :

Ronds à béton nervuré
  • The consistency of quality.
  • The regularity of the linear density.
  • The elasticity and ductility of steels meet seismic requirements and durability.
  • Improved product traceability on sites across the marking and according to the Tunisian standard NT26.05 (2004).

Ribbed reinforcing bars are obtained by hot-rolling processes. It is primarily used to form the reinforcing steel for reinforced concrete structures.

Diam Ø en (mm) CHEMICAL COMPOSITION TECHNICAL SPECIFICATIONS
C Mn Si S P N Céq
Nominal section
Masse linéique
(%) Nominal
Permissible difference
Max  (mm2) (Kg/m) (%)
8 0,22 1,6 0,6 0,05 0,05 0,012 0,5 28,3 0,395 ± 8
10 50,3 0,617 ± 8
12 78,3 0,888 ± 5
14 154 1,21 ± 5
16 201 1,58 ± 5
20 314 2,47 ± 5
25 491 3,85 ± 4
32 804 6,31 ± 4
Diam Ø en (mm) MECHANICAL FEATURES
ReH Rm Agt % A% 
Min Min Min
N/mm2 Min
8 500 550 5 14
10
12
14
16
20
35
32

Resistant: More Savings

The RB 500 W is characterized by a minimum strength of 500 N / mm2 against 400 N / mm2 For RB 400. Being more resistant the use of steel RB 500 w allows savings to level quantities of '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' steel used, the maximum ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''economy has reached 35% for columns and an average saving of:

  • 15% to the beams
  • 20% for solid slabs
  • 15% for ribbed slabs

Weldable: More productivity

RB 500W is characterized by its weldability compared to RB 500.This weldability advantage allows a productivity gain with an average yield of ligation of 50 Kg / hour against 80 kg / hour by hand soldering and 100 kg / hour by the electrode welding.

Weldability removes attaching wires and thus makes the reinforcements unalterable when they move; which facilitates handling and transportation. Moreover it reduces the length of hedges bars.

Download the brochure RB 500W SIDENOR