Type 304 and 304L are commonly used austenitic stainless steel. These are relatively low cost, extremely formidable, and resistant to atmospheric corrosion. Both types have similar chemical and mechanical properties, but the main difference lies in their carbon content. You might be wondering, what makes these two stainless steels so versatile, and what are … The Differences Between 304 and 304L Stainless Steel: Insights from a St Louis, MO Stainless Steel Slitting Company