The difference between 304l and 304

304l and 304 have the following three differences:

1, the price is different. The price of 304L stainless steel is generally higher than that of 304 stainless steel. So if 304L is used instead of 304, the price will increase the cost.

2. The chemical composition is different. The most basic is that the carbon content of 304L stainless steel is less than 0.03, while the carbon content of 304 is less than 0.08.

3. Different mechanical properties. Compared with the mechanical properties of 304L, this steel is obtained by reducing the carbon content of 304 to less than 0.03%. Its general characteristics are almost the same as those of 304, but 304L stainless steel can inhibit the precipitation of chromium carbide between 500 and 900oC. It is suitable for large-scale welding structural materials and pipe fittings that need to be used directly after welding. The biggest feature of stainless steel is to improve the susceptibility to intergranular corrosion, reducing the carbon content to the point where the weld does not cause practical heat-sensitization problems.