What is the composition of steel plate Q235

Steel plate Q235 is a type of carbon structural steel commonly used in construction and engineering applications. Its chemical composition includes:

- Carbon (C): 0.12-0.20%
- Silicon (Si): ≤0.30%
- Manganese (Mn): 0.30-0.70%
- Phosphorus (P): ≤0.045%
- Sulfur (S): ≤0.050%

In addition, steel plate Q235 may also contain trace amounts of other elements such as copper, nickel, chromium, and molybdenum. The exact composition can vary depending on the manufacturing process and the intended use of the steel.

Steel plate Q235 has good strength, ductility, and weldability, making it a versatile and widely-used material in various industries. It is often used for structural components such as beams, columns, and plates, as well as in the production of pipes, tubes, and wire rods.