We all know that the mechanical properties of reinforcing bars are tested by experiments. The mechanical properties of reinforcing bars are measured by yield point, tensile strength, elongation and cold bending properties. Next let's look at the specifications.
Following point (fy): When the stress of steel bar exceeds the yield point, the tensile force does not increase, but the deion increases significantly. When there will be a large residual deion, the tensile force per unit area of steel bar obtained by dividing the tensile force value by the cross-sectional area of steel bar at this time is the yield point s degree.
Tensile strength (fu): Tensile strength is defined as the ultimate strength, which divides the maximum tensile force that the steel bar can bear before it is broken by the section area of the steel bar. It is the largest stress value in the stress-strain curve. Although it has no direct significance in strength calculation, it is an indispensable guarantee item in the mechanical properties of reinforcing bars. Because:
(1) Tensile strength is the ultimate ability of steel bars to accept static loads. It can indicate how much strength of steel bars is stored after reaching the yield point. It is an important index to resist plastic damage.
(2) Defects in steel bars during smelting and rolling, and the instability of chemical composition content of steel bars are often reflected in the tensile strength. When the carbon content is too high and the temperature at the end of rolling is too low, the tensile strength may be very high; when the carbon content is too low and there are too many non-metallic inclusions in steel, the tensile strength will be low.
After the above study, do you have a deep understanding of the mechanical properties of reinforcing bars? If you have the wholesale demand of reinforcing bars in Jinan, you can click on our official website to stop consulting: /?