Why are 304 and 316L stainless steels commonly used in design?
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As the title suggests, I’ve seen many projects; when stainless steel is used, 304 and 316L are commonly employed in a single project. However, 304L and 316 are hardly ever used. What’s the reason for that?
The main reasons why 304 and 316L stainless steels are commonly used are their good corrosion resistance and workability. 304 stainless steel has a relatively low cost and is suitable for most environments ； 316L, on the other hand, contains more nickel and molybdenum, providing greater corrosion resistance, especially in high-chloride environments. Generally, 304L and 316 are more expensive than 304 and 316L; however, the resulting performance improvements are not significant, which is why they are used less frequently. .
Thank you for the explanation. In short, the cost of 304L is higher than that of 304, but the improvement in performance isn’t significant; therefore, 304 is sufficient for applications involving corrosion. So, is the performance of 316 better than that of 316L, and is its cost higher? Or rather, are the performance improvements of 316L over 316 quite significant, with a correspondingly higher price?
Sequence of selection for austenitic stainless steels (from low to high): 1Cr18Ni9Ti → 0Cr18Ni9 (304) → 0Cr18Ni11Ti (321) → 00Cr19Ni10 (304L) → 0Cr17Ni12Mo2Ti (316) → 00Cr17Ni14Mo2 (316L) → 00Cr19Ni13Mo3 (317L) → 00Cr20Ni25Mo4.5Cu (904L) → 00Cr27Ni31Mo4Cu
It’s mainly a matter of cost-effectiveness, provided that the material can withstand corrosion from 304 and 316 metals; this is a prerequisite for ensuring safe operation. 304 and 316L are inexpensive among stainless steels, which reduces the construction cost of the equipment.
Is the price of 316L lower than that of 316?
316L is a bit more expensive than 304
This post was last edited by qqgd on 2024-11-11 09:05. 304L and 316L indicate a lower carbon content in the steel; their production cost is higher, resulting in higher prices, but they offer better corrosion resistance.
Results that take into account material properties and cost-effectiveness.