Q235A steel plate concept
Q235A steel plate is a common low carbon steel plate, widely used in construction, bridges, machinery manufacturing and other fields. It is a steel grade in the Chinese national standard GB/T 700-2006 and has good weldability and processability.
Chemical composition of Q235A steel plate
The chemical composition of Q235A steel plate mainly includes carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S) and other elements. The following is the specific chemical composition content:
Element content (maximum value, %)
Carbon (C) ≤0.22 (some say ≤0.17)
Silicon (Si) ≤0.35
Manganese(Mn) ≤1.4
Phosphorus (P) ≤0.045
Sulfur (S) ≤0.045
In addition, the Q235A steel plate may also contain trace amounts of copper (Cu), nickel (Ni), chromium (Cr), molybdenum (Mo), vanadium (V), aluminum (Al), titanium (Ti), niobium (Nb), Elements such as lead (Pb), but the content of these elements is usually low and will not have a significant impact on the overall performance of the steel plate.
Application scope of Q235A steel plate
Q235A steel plate is widely used in many fields due to its good weldability, processability and mechanical properties, including but not limited to:
Building structure: used to manufacture building frames, beams and columns and other components, which can withstand large external forces and ensure the stability and safety of the building.
Bridge engineering: used to manufacture bridge main beams, cross beams and other components, which can withstand the bridge's own weight and vehicle load, ensuring the bridge's traffic capacity and safety.
Vehicle manufacturing: used to manufacture automobile bodies, frames and other components, which can meet the requirements of automobile lightweight, high strength and corrosion resistance.
Machinery manufacturing: used to manufacture mechanical equipment, parts, etc., which can meet the manufacturing needs of various complex shapes and structures while ensuring the stability and service life of the equipment.
