|Indicator (characteristics)||The index value (content data) for the class|
|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 strengthδt (δ0,2), 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
δв/δt. (δв/δ0,2), no less
|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 δв/δ0,2(δв/δt.) 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.
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.