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Round steel
Overview
Round steel is divided into three types: hot rolled, forged, and cold drawn. The specifications of hot-rolled round steel are 5.5-250mm. Among them, 5.5-25mm small round steel is mostly supplied in bundles of straight bars, commonly used as steel bars, bolts, and various mechanical parts; Round steel larger than 25mm is mainly used for manufacturing mechanical parts, seamless steel pipe blanks, etc.
Product characteristics
Round steel has low strength, while other steel bars have high strength. Compared with other steel bars, round steel bars with the same diameter can withstand less tensile force, but their plasticity is stronger. This means that round steel has significant deformation before being pulled off, while other steel bars have much smaller deformation before being pulled off.
Product parameters
Standard | JIS / EN/ ASTM / GB |
Grades | Q195,Q235,Q345, 20#,45#,SD345, SD390, SD490 |
BS4449 460B / B500B, ASTM | |
Size 1 | 8mm—1000mm |
Size 2 | 6mm—12mm |
