Difference between 304 And 304L Stainless Steel Pipe

The difference between 304 and 304L stainless steel pipe.
As the most widely used stainless steel heat-resistant steel, food equipment, generalized equipment, atomic energy industry equipment. 304 is the most common steel, corrosion resistance, heat resistance, low temperature strength, good mechanical properties. Preferably deep drawing, bending work ability at room temperature, will not harden after heat treatment.
Chemical composition:
C≤0.08 Ni8.00 ~ 10.00 Cr18.00 ~ 20.00, Mn <= 2.0 Si <= 1.0 S <= 0.030 P <= 0.045