Hot rolled steel round bar
After hot rolling, the cross section is usually round and the finished steel bar with smooth surface.
characteristic value The quantile value corresponding to a specified probability in an infinite number of tests.Steel bars are classified into 235 and 300 grades according to the characteristic value of yield strength.HPB235 hot calendered round bar by HPB+yield strength HPB—hot calendered round steel bar in Chinese
Hot-rolled ribbed steel bars and hot-rolled round steel bars are widely used in various building components, with good compressive and tensile properties, excellent cold bending properties and good welding properties.
The nominal diameter of steel bars ranges from 6mm to 22mm. The nominal diameters of steel bars recommended in this standard are 6mm, 8mm, 10mm, 12mm,
16mm, 20mm.
Hot rolled steel bars in China can be divided into four grades according to their strength:
Grade I steel bar: It has a wide range of applications and can be used as the main stress steel bar for medium and small reinforced concrete structures, stirrups for components, and tie rods for steel and wood structures. Wire rods can also be used as raw materials for cold drawn low carbon steel wires and double steel bars.
Grade I steel bars: widely used in large and medium-sized reinforced concrete structures, such as the main bars of bridges, dams, port projects and building structures. Grade II steel bars can also be used as prestressed steel bars for building structures after cold drawing.
