ST37 and ST52 steel plates are among the most widely used structural steel grades in Iran. Their main difference lies in carbon content and tensile strength. ST37 is a softer steel suitable for forming and welding operations, while ST52, due to higher manganese content, offers greater resistance to pressure and impact.
In the pipe manufacturing industry, both grades are used depending on project requirements. For example, ST37 is commonly applied in urban water transmission pipes, while ST52 is preferred for high-pressure oil and gas pipelines.
Through direct cooperation with reputable domestic and international producers, ptskish supplies steel plates in various thicknesses and dimensions. Strict quality control, metallographic analysis, and mechanical testing are critical stages in the supply process.


