Chemical Composition of AISI304N (00Cr19Ni9N) and AISI304L (00Cr18Ni10N)
AISI304N (00Cr19Ni9N) and AISI304L (00Cr18Ni10N) are two important stainless steel alloys. Although very similar in their chemical makeup and applications, these two alloys do have some differences that need to be taken into consideration when it comes to usage.
AISI304N (00Cr19Ni9N) is a stainless steel alloy that is made up mostly of iron (at least 18%) and chromium (at least 18%). It also has relatively high levels of nickel (8-10.5%), manganese (2%), and nitrogen (0.10%). Additionally, other elements are present in small amounts, including molybdenum (0.75%), sulfur (0.030%) and phosphorous (0.045%).
The mechanical properties of this alloy are very good, including high tensile strength, good fatigue strength, and good oxidation and corrosion resistance. These properties also make it particularly suitable for use in extreme temperature ranges. Typical applications for this alloy include pressure vessels, boilers, bridge components, and architecture.
AISI304L (00Cr18Ni10N) is a stainless steel alloy that is also made up of iron (at least 17-19%) and chromium (at least 16-18%). As with AISI304N, it also contains relatively large amounts of nickel (8-11%), manganese (2%), and nitrogen (0.10%). Other elements that can be found in smaller amounts include molybdenum (up to 0.75%), sulfur (0.030%), and phosphorous (0.045%).
The low levels of carbon in this alloy give it extra resistance to corrosion. With its superior oxidation resistance, this alloy is good for use in many different environments, making it a great choice for use in food handling, fabrication, and cooking utensils.
Overall, both AISI304N (00Cr19Ni9N) and AISI304L (00Cr18Ni10N) are great stainless steel alloys. They are both used for a variety of applications due to their considerable mechanical properties, corrosion resistance, and oxidation resistance. However, due to their differing chemical makeups, care should be taken when selecting the correct alloy for a given application. By taking into consideration the carbon and nitrogen content, as well as other elements, it is possible to make the right choice.
