Steel flat bars are commonly used for structural reinforcement, machine components, brackets, frames, and general fabrication. We supply flat bars in Q235B, Q345B, S235JR, S355JR, A36, and other structural steel grades. Width from 20mm to 500mm, thickness from 3mm to 80mm, length up to 12m. Available in hot rolled and cold drawn conditions. Custom sizes available upon request. All flat bars supplied with material test certificates.
Overview of Q345B Carbon Steel Flat Bar Q345B is a widely used Chinese standard low-alloy high-strength structural steel flat bar specified under GB/T 1591 standard. With a minimum yield strength of 345 MPa and tensile strength of 470-630 MPa, Q345B…
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