Q235 Carbon round steel common carbon structural steel is also known as A3 steel. Q refers to the yield strength, 235 is the strength value, Q235 Carbon round steel refers to the yield strength of 235MPa cast iron.Mainly used in construction, mainly used in Bridges, factories, ships and other construction and engineering. Use without heat treatment.

The chemical composition of Q235 Carbon round steel: C ≤ 0.22Si ≤ 0.35Mn ≤ 1.40 P≤ 0.045s ≤0.050;The tensile strength of Q235 Carbon round steel is 490MPa, and the elongation is 23%.