Reinforcing bars

Reinforcing bars


Weld die-rolled section bars A500C class Weld die-rolled section bars A500C class

Indicator (characteristics) The index value (content data) for the class
A500C B500C

Diameter, mm

6—40 4—12
Dimensions periodic profile 4.3 of this Standard
Permissible deviations from the nominal values of the cross-sectional area and the mass of 1 m length 4.3 of this Standard
Minimum relative shear area of transverse ribs periodic profile fr 4.3 of this Standard
Yield strengthδt0,2), N/mm2, no less 500 500
Tensile strength δв, N/mm2, no less 600 550
Relative elongation δ5, %, no less 14,0 ---
Complete elongation at maximum stress
δmax, %, no less
  2,52)

δвt. (δв0,2), no less

1,08 1,053>
Statistical security mechanical properties 5.4 of this Standard
Flexural properties 5.5 of this Standard
The bending properties and then unbending 5.5 of this Standard
Endurance reinforcing steel. Swipe Δδ with a maximum stress δmax= 300 N/mm2 and the number of load cycles 2* 106, N/mm2 150
Chemical composition 5.6 of this Standard
Weldability 5.7 of this Standard

1) As the of yield strength take a physical δtor conditional δ0,2yield strength according to GOST 12004.
2) You can instead of full elongation 8tah determine the relative uniform elongation δp, the value of which should not be less than 2 %.
3) For reinforcing bars B500C grade 5.5 mm or less is allowed to decrease δв0,2вt.) to 1,03.

In bundles, weight 5 tons max., with banding by wire rod 6,5 mm in 6 places min. equally distributed over bundle. Each bundle is provided with 2 steel straps for multiple lifting.

Quality control of cold-deformed reinforcing bars includes the monitoring of:

  • Geometric al parameters of the profile;
  • Relative collapse area;
  • Surface ratio of projection;
  • Linear density;
  • Yield point;
  • Tensile strength;
  • Ratio of tensile strength to yield point;
  • Percentage elongation at maximum load;
  • Bending test;
  • Surface quality.

The laboratories conducting physic, mechanical, chemical and metallographic tests work in order to control technological production processes and quality of finished steel products. The Central Works Laboratories are accredited for technical competence in accordance with the requirements of the national standard STB/ISO MEC 17025 and DIN EN ISO 17025:2005.

To monitor production processes and evaluate the quality of finished products, there are laboratories that conduct physical, mechanical, chemical and metallographic tests. The CPL laboratories are accredited for technical competence in the main activities in accordance with the requirements of the national standard STB / ISO IEC 17025 and the standard DIN EN ISO 17025:2005.

Product catalogue
PDF, 14 Mb
Rolled products catalogue
PDF, 2,35 Mb
Pipe products catalogue
PDF, 5,58 Mb
Steel cord and wire production catalogue
PDF, 2,90 Mb