study of the corrosion resistance of type 304l and 316
- I. What Kind of Steel Is Stainless Steel?II. Why Does Stainless Steel Have Different Grades?III. Performance ComparisonIV. Low-Carbon Stainless Steelv. Why Stainless Steel Rust316L Stainless Steel Technical Data SheetThe PRE N of Type 316 and 316L (24.2) is better than that of Type 304 (PRE N =19.0), reflecting the better pitting resistance which Type 316 (or 316L) offers due to its Mo content. Type 304 stainless steel is considered to resist pitting and crevice corrosion in waters containing up to about 100 ppm chloride.
304/304L Stainless SteelThe key elements in 304 are Chromium and Nickel which give it excellent resistance to corrosion. It has good resistance to corrosion, it is malleable and ductile and has good weldability. The austenitic structure allows it to be deep drawn without intermediate annealing. It is also unnecessary to anneal it following welding thin sections.
Type 304 and 304L have very similar chemical and mechanical properties. The only difference between them is the carbon content; the 304 stainless steel nbsp;has a maximum range of carbon of 0.08% whereas the 304L has a maximum range of 0.03%.br br This range of carbon in the steel affects the corrosion resistance of the tanks. CORROSION RESISTANCE OF THE AUSTENITIC Corrosion Resistance of the Austenitic Chromium-Nickel as in Types 304L and 3 16L, is sufficient to avoid sensitization during welding and stress relief annealing, but a further reduction to Type of st,nl:,,s -__- 316 316 Type Expel of iure 99.6 55-75 .02-0.3 20 10 Chloride Stress Corrosion Cracking & Relative resistance Apr 28, 2016 · Therefore, standard grades such as 304/304L and 316/316L are very susceptible to this mode of attack. Austenitic grades with relatively high nickel and molybdenum contents such as alloy 20, 904L, and the 6% molybdenum super austenitic grades have substantially better chloride SCC resistance.
AISI 304 is used most frequently, which results from its anti-corrosion properties as compared to the price. AISI 304 can be used in the atmospheric environment, natural water, alkaline solutions and certain acids. The most popular acid-resistant material is steel AISI 316, which exhibits increased resistance to corrosion in very aggressive chemical environments. The third tested type is AISI 321, which shows high resistance to inter-crystalline corrosion and resistance Resistance to Corrosion - 316 316L 1.4401 1.4404 Stainless Mo and PREN = 29.7, offers even better resistance to pitting than the 316 alloys. Alloy 304 stainless steel is considered to resist pitting and crevice corrosion in waters containing up to about 100 ppm chloride. The Mo-bearing Alloy 316 and Alloy 317L on the other hand will handle waters with up to about 2000 and 5000 ppm chloride, respectively. Study of the corrosion behaviour of sensitized 904L Apr 01, 2021 · Compared to 304L and 316L stainless steels, super austenitic 904L stainless steel is a kind of austenitic stainless steel with low carbon, and high chromium, nickel and molybdenum contents, and has good pitting and intergranular corrosion resistance.
Study of the Corrosion Resistance of Type 304L and 316