Basically, 304LN is an austenitic grade with the boom of nitrogen to 304 stainless steel grade. Increase in nitrogen, Improvement in yield strength!ģ04LN stainless steel grade is a derivation of this phrase only. An attribute of good oxidation resistance makes Stainless Steel 304H ideal even for periodic use at 870° C with continuous services till 925° C.ģ04H Stainless Steel Chemical Composition (in %): Chromium If we analyze industrial uses, stainless steel grades 304 and 304H are the most widely used across the globe.īeing the best fit for high-temperature applications 304H stainless steel offers high strength for temperatures from 550° C to 800° C. “H” in 304H stands for “High” carbon content which denotes an increment of strength in handling high temperatures. That doesn’t mean 304L can’t get participated in any industrial uses, rooming a matter of fact – 304L is massively considered more useful than other stainless steel grades for a way easier welding process by minimizing the carbide precipitation even in severely corrosive environments.ģ04L Stainless Steel Chemical Composition (in %) Carbon Well, “L” is a grade that represents “Low-carbon” which makes a slight yet significant difference of 0.05% carbon content which makes it structurally weaker than AISI 304 Stainless Steel. Now, what does “L” stand for in 304L, and how does it make all the difference? This stable arrangement of the AISI 304 stainless steel composition makes it ideal for corrosion resistance and durability.ĪISI 304 Stainless Steel can be easily formed for complex structures which makes it flexible to get in use by multiple industries, including manufacturing, construction, and sanitaryware.Īlloys of AISI 304 can also be easily welded with an offering of NO-QUALITY-CHANGE corrosion resistance and low weightage, making AISI 304 a popular choice even for welding industries such as metal sheeting, wire mesh products, and steam piping.ģ Main Types of 304 Stainless Steel Grades: The tag of AISI on it stands for (American Iron and Steel Institute), identifying its commercial availability of stainless steel or chromium steel.ĪISI 304 stainless steel composition mainly consists of 18% chromium and 8% nickel, and other stainless steel qualities enhancing alloys include nickel, manganese, silicon, nitrogen, carbon, phosphorus, and sulphur. Below we will go through each of them with a detailed form of their uses and applications.ĪISI 304 – industrially denoted as 18/8, is an austenitic chromium-nickel stainless steel. Properties of stainless steel which need to be assured contain many matters such as the amount of nickel, chromium, workability, hardness, yield strength, and top of all corrosion resistance that can work constantly at every temperature without creating an effect on machinery.Īustenitic stainless steel grades such as AISI 304 stainless steel meet each requirement as mentioned above with offerings of 304 sub-grades which play a vital role in numerous industries according to their chemical properties. Stainless steel is the most useful element operated in various industries, but when it comes to choosing the right stainless steel grade, industries get riddled.
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