304 Stainless Steel Chemical Compatibility Char t ver 1-Nov-2018 Key to General Chemical Resistance [all data based on 72 ° (22 °C) unless noted ] A = Excellent No Effect C = Fair - Moderate Effect, not recommended B= Good - Minor Effect, slight corrosion or discoloration D = Severe Effect, not recommended for ANY use 304 Stainless Steel Corrosion Compatibility Chart304 Stainless Steel Corrosion Compatibility Chart A-Excellent The information in this chart has been supplied to Thomas & Betts by other reputable sources and is to be used ONLY as a guide in selecting equipment for appropriate chemical compat-
The most basic difference between the grades of steel is the presence of molybdenum in stainless 316. Molybdenum is a chemical element used for the strengthening and hardening of steel. Its main function in stainless 316 is to help fight off corrosion from chlorides. Stainless 316 contains more nickel than stainless 304, while 304 contains more chromium than 316. 304/304L Stainless Steel Plate, Sheet & Coil - Octal MetalsStainless steel plate inlcudes plates of stainless steel and acid-resistant steel, it has type of forms as plates, coils and sheets, common use grades are 304/304L and 316/316L, 321 and etc. Stainless steel developed since the beginning of this century and till now is more than 90 years. AISI 316 Stainless Steel vs. AISI 321 Stainless Steel May 30, 2020 · Both AISI 316 stainless steel and AISI 321 stainless steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. For each property being compared, the top bar is AISI 316 stainless steel and the bottom bar is AISI 321 stainless steel.
Alloy 304/304L (UNS S30400/S30403) is the most widely utilized 18-8 chromium-nickel austenitic stainless steel. It is an economical and versatile corrosion resistant alloy suitable for a wide range of general purpose applications. DESIGN GUIDELINES FOR STAINLESS STEEL IN PIPING Phosphoric acid Type 304 is satisfactory for storing cold phosphoric acid up to 85% and for handling concentrations up to 5% in some unit processes of manufacture. Type 316 is more resistant and is generally used for storing and manufacture if the fluorine content is not too high. Type 317 is somewhat more resistant than Type 316. DESIGN GUIDELINES FOR STAINLESS STEEL IN PIPING Phosphoric acid Type 304 is satisfactory for storing cold phosphoric acid up to 85% and for handling concentrations up to 5% in some unit processes of manufacture. Type 316 is more resistant and is generally used for storing and manufacture if the fluorine content is not too high. Type 317 is somewhat more resistant than Type 316.
Feb 23, 2011 · The molybdenum gives 316 better overall corrosion resistant properties than Grade 321 (similar to 304, with Ti addition to improve temperature property within 800-1500 deg F), particularly higher resistance to pitting and crevice corrosion in chloride environments. So if you are really concerning chloride corrosion, then 316 is better choice. Selection Stainless Steel For Handling Hydrochloric Acid HClThe common stainless steel types, 304 and 316 should be considered non-resistant to hydrochloric acid at any concentration and temperature. Corrosion resistance of stainless steel The iso-corrosion diagram 0.1mm/year lines are represented for 316 types (red) and a Stainless Good Metals CompanyCorrosion resistance is superior to that of 304. Resists corrosion on welded parts. 316:Better pitting and corrosion resistance than 304, as well as higher strength at elevated temperatures. 316 can be used for valves, marine equipment, pumps, and chemical equipment. 316L:Extra low carbon avoids harmful carbide precipitation due to welding
Material Grade :304 316 304l 316l 309s 310s 321 stainless steel plate /stainless steel sheet Technique :hot rolled cold rolled Surface :No .1 Thickness :3mm-60mm Width :1000mm,1200mm,1220mm ,1250mm,1500mm,2000mm and customized Length :2000mm--2500mm customized Additional Service :cutting punching Stainless Steel Plate - SS Sheet Supplier TW MetalsTW Metals stocks a wide range of stainless steel plates in 304/304L, 304 straight grade, 316/316L and 321 plate. These grades are part of the austenitic family of stainless. Austenitic stainless steel is one of the most widely used and versatile type of steel. While 304L stainless steel plates & sheets have excellent corrosion resistance, 316/316L plates have higher nickel content than 304 and 304L SS Stainless Steels Alloys:Formability, Fabrication and May 19, 2005 · Pickling also removes rust due to corrosion of the stainless steel or corrosion of contaminant iron and steel particles. The scale is removed as it retards the corrosion resistance of the underlying stainless steel. Pickling is commonly done using baths or Pickling Paste. Pickling paste is a specially prepared stiff paste of strong acids.
resistance to chlorinated seawater FFlue gas cleaning C, H, P, S Ultra 4565 A 4.5% molybdenum, very high nitrogen alloyed austenitic stainless steel with excellent corrosion resistance and high mechanical strength. Flue gas desulfurization applications C, H, P, S, T Ultra 654 SMO The most corrosion-resistant stainless steel in the world. Stainless steels for extremely corrosive environmentsresistance to chlorinated seawater FFlue gas cleaning C, H, P, S Ultra 4565 A 4.5% molybdenum, very high nitrogen alloyed austenitic stainless steel with excellent corrosion resistance and high mechanical strength. Flue gas desulfurization applications C, H, P, S, T Ultra 654 SMO The most corrosion-resistant stainless steel in the world. Sulfuric Acid Resistant Alloys - 911metallurgistAt-a-glance corrosion chart for sulfuric acid is based on an extensive survey of construction materials; gives rough indication of suitable alloys. A variety of methods have been proposed many are used for the presentation of corrosion data in concise form. The authors are basically opposed to the presentation of information in simplified chart form if this material alone is to be used
Chemical /condition Temp o C :304, 321,347 Stainless Steel 316,316L Stain. Stl. Nickel:Monel Iconel Hastalloy C Acetic Acid (20%) :21 A A A A A A Acetic Acid (50%) :21 A A B A A A