Hot-rolled steel pipes are produced at high temperatures and have a rougher surface finish. They are known for their flexibility and are often used in applications that require bending or shaping. On the other hand, cold-rolled steel pipes are produced at lower temperatures and undergo additional processing to achieve a smoother surface finish. They are generally stronger and more precise in dimensions, making them suitable for applications that require high precision and strength.
Hot-rolled steel pipes are manufactured by heating the steel billets or coils to a high temperature, which allows for easier shaping and forming. The hot-rolled process also results in a rougher surface finish and larger tolerances. In contrast, cold-rolled steel pipes are made by rolling the steel at a lower temperature, resulting in a smoother surface finish, tighter tolerances, and improved strength and durability.
The main difference between hot-rolled and cold-rolled steel pipes lies in the manufacturing process. Hot-rolled steel pipes are produced at high temperatures, which results in a rougher surface and less precise dimensions. On the other hand, cold-rolled steel pipes are manufactured at lower temperatures, leading to a smoother surface finish and more accurate measurements. Additionally, the hot-rolling process allows for a wider range of steel grades and sizes, while cold-rolled pipes are generally limited in terms of thickness and diameter.