The difference between 304L stainless steel pipe and 304 stainless steel pipe

The main differences between 304L stainless steel pipe and 304 stainless steel pipe are as follows:

1. Carbon content: The carbon content of 304L stainless steel pipe is lower than that of 304 stainless steel pipe. The carbon content of 304L is usually below 0.03%, while the carbon content of 304 stainless steel pipes can reach 0.08%.

2. Intergranular corrosion resistance: Due to the lower carbon content, 304L stainless steel pipe has better intergranular corrosion resistance, especially in the welding process. In contrast, 304 stainless steel pipes may have intergranular corrosion problems when welded at high temperatures.

3. Application: Due to its excellent intergranular corrosion resistance, 304L stainless steel pipe is often used in high temperature environment and corrosive media, such as chemical equipment, food processing equipment, medical equipment and so on. 304 stainless steel pipe is widely used in general occasions, such as architectural decoration, kitchen utensils and so on.

4. Welding performance: The low carbon content of 304L stainless steel pipe makes it easier to weld and reduces the risk of intergranular corrosion during welding. In contrast, 304 stainless steel pipes may require special measures to reduce the occurrence of intergranular corrosion when welded.

Compared with 304 stainless steel pipe, 304L stainless steel pipe has better intergranular corrosion resistance and is suitable for high temperature corrosion environment. When selecting materials, which stainless steel pipe to use should be determined according to the specific conditions and requirements of use.