HRBF335 steel bar is a fine-grained hot-rolled ribbed steel bar with a yield strength of 335MPa. This kind of steel bar forms fine grains through controlled rolling and controlled cooling during hot rolling. The metallographic structure is mainly ferrite plus pearlite. There must be no other structures that affect the performance. The grain size does not exceed 9 levels. The diameter specifications of HRBF335 steel bars usually range from 6mm to 50mm, and the elastic modulus is 200GPa.

CLASSIFICATION AND IDENTIFICATION OF STEEL BARS

The identification on the steel bar usually includes letters and numbers, where the letters represent the type and characteristics of the steel bar, and the numbers represent its specifications. For example:

HRB: hot-rolled ribbed steel bar.

‌HRBF: fine-grained hot-rolled ribbed steel bar.

‌E: seismic steel bar.

‌W: weldable steel bar.

‌C: fine-grained hot-rolled steel bar.

‌K: residual heat treated steel bar.

APPLICATION SCENARIOS AND STANDARD VALUES

HRBF335 steel bars are widely used in various construction and engineering projects, mainly to enhance the strength and stability of concrete structures. Its standard yield strength is 335MPa, which is suitable for structural parts that require higher strength.