What's the difference between finish rolling thread steel and ordinary thread steel?
The rebar used in prestressed concrete is a kind of bar with big diameter, high strength and high dimension precision, which is rolled with an external thread on the whole reinforcing bar. The steel bar is screwed at any cross section with a connector with an internal thread to connect or screw on the threaded nut for anchoring.
Steel is known as hot rolled ribbed bar. Ordinary hot rolled steel bars are made up of HRB and the minimum yield point of the brand. H, R, and B are the first letters in English for hot-rolled (Hotrolled), ribbed (Ribbed) and reinforced (Bars) three words.
To say the difference between the new bridge finish rolling thread steel and ordinary thread steel main difference between finish rolling thread steel: mainly used for high strength, difference is mainly different strength, chemical composition is not the same:Finish rolling thread steel is prestressed steel, and its strength is higher than ordinary thread steel.