Another issue people struggle with concerning nitric acid is whether they should use the low-carbon grades 304L,316L or the cast equivalents CF3 and CF3M.The concern is that nitric acid is a strong oxidizing acid that can cause intergranular corrosionone way to minimize the susceptibility to intergranular corrosion is to use the low Type 304L and 316L Stainless Steel - 3-A Sanitary Type 304L and 316L bar products typically contains 0.020 - 0.030% S May 18,2010 3-A Educational Program 23. Typically an oxidant such as a nitric acid solution which enhances the spontaneous formation of a protective film May 18,2010 3-A Educational Program 42.Stainless steels for extremely corrosive environmentsCore 304L/4307 Core 304L/4306 Core 305/4303 Core 347/4550 Supra 316L/4435 Supra 316L/4432 Supra 316/4436 Supra 316L/4435 Supra 444/ 4521 Strength vs.corrosion resistance Performance Core Corrosive environments (PRE 17 to 22) Supra Highly corrosive environments (PRE 22 to 27) Ultra Extremely corrosive environments (PRE nitric acid 316l compatibility versus 304lgt; 27)
316Ti (and of Type 316L).The combined influences of molybdenum and titanium reduce the resistance of Type 316Ti stainless steel to highly oxidizing environments including the nitric acid environment of the ASTM A 262 practice C Huey test and the ferric sulfate environment of the ASTM A 262 Practice B Streicher test.However,testing in the Stainless Steel Chemical Compatibility ChartStainless Steel Chemical Compatibility Chart Check the chemical compatibility of Stainless Steel with various chemicals,solvents,alcohols and other products..Shop Stainless Steel.Please Note The information in this chart has been supplied by reputable sources and is to be used ONLY as a guide in selecting equipment for appropriate chemical compatibility.Stainless 316,316L,317,317L - United PerformanceTypes 316,316L,317 and 317L are more resistant to atmospheric and other mild types of corrosion than Types 302,304 and 304L.In general,media that do not corrode Types 302,-containing grades.One known exception is highly oxidizing acids such as nitric acid to which the molybdenum-bearing stainless steels are less resistant.
Types 316,316L,317 and 317L are more resistant to atmospheric and other mild types of corrosion than Types 302,304 and 304L.In general,media that do not corrode Types 302,-containing grades.One known exception is highly oxidizing acids such as nitric acid to which the molybdenum-bearing stainless steels are less resistant.Specification Sheet Alloy 316/316L - Sandmeyer Steel316/316L has superior corrosion resistance to Alloy 304/304L.Process environments that do not corrode Alloy 304/304L will not attack this grade.One exception,however,is in highly oxidizing acids such as nitric acid where stainless steels containing molybdenum are less resistant.Alloy 316/316L performs well in sulfur containingSelection of Stainless Steel For Handling Nitric Acid HNO3The 304 types are preferable to 316 types for nitric acid applications however.This is an exception to the 'general rule' for stainless steels where the 316 types are normally found to be more corrosion resistant than 304 types.Over 95% concentration,aluminium alloys should be considered OR 4
Dec 10,2020 nitric acid 316l compatibility versus 304l#0183;The diagram shows the ranges within which data should be chosen in order to obtain a tool life of minimum 10 minutes when machining austenitic Sanmac materials (304/304L,316/316L).Figure 1.Machining chart Sandvik Sanmac 304L and 316L.The ranges are limited in the event of low feeds because of unacceptable chip breaking.STAINLESS STEEL Grade 304,304L,304H304L 70 ksi 25 ksi 40% 95 HRB NITRIC ACID % Acid by Weight Temperature ( nitric acid 316l compatibility versus 304l#176;C) Type CS304 20 0 20 40 60 80 100 40 60 80 100 120 (such as 316L) should be considered.The diagram below shows the critical temperature for initiation of pitting (CPT) STAINLESS STEEL (SS316L/EN2348) CHEMICALAcetic acid,10% A Acetic acid,20% A Acetic acid,50% A Acetic acid,80% B Acetic acid,glacial (anhydrous) A Acetic acid,pure A Acetic acid,vapours D Acetic Anhydride A compatibility of Stainless Steel 316L will depend on several parameters,such as temperature,concentration,
304l versus 316l304l vs 316l stainless steelPrevious123456NextRelated searches for nitric acid 316l compatibility versus 304l304l versus 316l304l vs 316l stainless steel12345NextCorrosion Resistance Plus High StrengthHydrochloric Acid 304L and 316L have very limited use in hydrochloric acid due to the risk of general and localized corrosion.2507,and to some extent 2205,can be used in dilute hydrochloric acid.248 212 176 140 104 68 32 316L LDX 2101 nitric acid 316l compatibility versus 304l2304 904L 2205 2507 254 SMO nitric acid 316l compatibility versus 304lNitric Acid In strongly oxidizing acids,e.g.nitricPickling and Passivating Stainless SteelNitric acid alone will only passivate stainless steel surfaces.It is not an effective acid for pickling stainless steels.There is a range of pickling methods that can be used on stainless steel fabrications,buildings components and architectural metalwork.The most important constituents
316L,304L,and super duplex stainless steels 316L stainless steel lined with Tefzel nitric acid 316l compatibility versus 304lcoating Nickel alloy C22 Titanium Tantalum.Environments Meter material Typical 316L stainless steel Nitric acid 304L stainless steel Oilfield chlorides and CO.2.Super duplex stainless steels.User Guide Meters and corrosion GI-00415 Nitric vs.Citric Acid Passivation for Stainless Steel (SS To learn more about nitric vs citric passivation industry standards and specifications,please see our page What is Passivation?.Today,many companies are taking a second look at citric acid due to its ease of chemical handling,disposal and overall safety for employees,all of which are more challenging when going with nitric acid passivation vs citric acid passivation.
316L Stainless Steel Chemical Compatibility Chart ver 10-Jan-2020 industrials Key to General Chemical Resistance [all data based on 72 nitric acid 316l compatibility versus 304l#176; (22 nitric acid 316l compatibility versus 304l#176;C) unless noted] Explanation of Footnotes 1 Satisfactory to 120 nitric acid 316l compatibility versus 304l#176; F (48 nitric acid 316l compatibility versus 304l#176; C) A = Excellent No Effect C = Fair - Moderate Effect,not recommendedNitric Acid Resistant Materials - Waverley BrownallMar 18,2017 nitric acid 316l compatibility versus 304l#0183;Due to its strongly oxidising nature,HNO3 (Nitric Acid) attacks most metals,causing localised corrosion issues.Exposure to concentrated Nitric acid or acid at a high temperature can cause intense attack in particular areas on the surface of a metal,also known as pitting.1 Nitric Acid Stainless Steel Exception For nitric acid,stainless steel 304 is often used in a Nitric Acid - Rolled Alloys,Inc.Nitric acid is the second largest commodity mineral acid,following behind sulfuric acid.It is a strong oxidizing acid and is used in CPI processes,the production of fertilizers and explosives,and is one of the principle ingredients for pickling stainless and chromium bearing nickel alloys.
As a result,molybdenum bearing grades,such as 316/L,are not particularly useful in nitric acid service.Duplex alloy 2205 appears to offer no advantage over 304L in pure acid.Duplex and superduplex alloys may offer some advantage in acid containing metal ions,such as pickling solutions.NeoNickelSulfuric Acid - Iso-corrosion curves [304L,316L,LDX 2101,2205,AL-6XN and ZERON 100] 11 Sulfuric Acid - Iso-corrosion charts [Stainless Steels] 11 Sulfuric Acid - Iso-corrosion charts [Alloy 20] 12 Iso-corrosion for Hydrochloric Acid 12 Iso-corrosion for Phosphoric Acid 12 Pitting and Crevice Corrosion 13 Pitting and Crevice Corrosion Most Widely Used Austenitic Stainless Steel,a Versatile of the alloy provides resistance to oxidizing solutions such as nitric acid up to 55% weight and up to 176 nitric acid 316l compatibility versus 304l#176;F (80 nitric acid 316l compatibility versus 304l#176;C).Alloy 304/304L also resists moderately aggressive organic acids such as acetic.The nickel present in the alloy provides resistance to moderately reducing solutions such as pure phosphoric acid
Containers holding toxic or acidic chemicals are generally 316L.Because of its strengthening properties,316L typically costs more than 304.The next time youre out and about,see if you can guess which structures utilize 304 and which use 316L.Developments In Citric Acid Passivation Of Stainless Steelinstead of nitric acid,special variations and procedures that are used when needed, 4% Citric Acid 304 304L Acceptable 2% Citric Acid 304 304L Unacceptable Table 2 Metal Content Of Citric Acid Bath After 30 Days Passivation Of 316L SS Citric Acid Titration Metals in Citric AcidDESIGN GUIDELINES FOR THE SELECTION AND USEis also used in nitric acid and food processing.Type 410 has the lowest alloy content of the three general-purpose stainless steels and is selected for highly stressed parts needing the combination of strength and corrosion resistance,such as fasteners.Type 410 resists corrosion in mild atmospheres,steam,and many mild chemical environments.
The corrosion data in this section is mainly based on the results of general corrosion laboratory tests,which are not strictly comparable with actual service conditions.The corrosion tables provide an initial guide to the selection of materials and are intended to facilitate understanding of the different types of corrosion damage that can arise due to poor material selection.Corrosion behaviour of 304L NAG and 310L NAG in Nitric Austenitic stainless steels type 304L,316L and 310Nb are largely used as structural materials for equipments handling nitric acid media in reprocessing plants.Corrosion assessment of type 304L stainless steel in AISI type 304L stainless steel (SS) was assessed for its corrosion resistance in nitric acid solution.The effect of variation in nitric acid concentration (I to]ON) and temperature (298 K,313 K
Feb 01,2009 nitric acid 316l compatibility versus 304l#0183;The corrosion resistance of three indigenous nitric acid grade (NAG) type 304L stainless steel (SS),designated as 304L1,304L2 and 304L3 and two commercial NAG SS designated as Uranus-16 similar to 304L composition and Uranus-65 similar to type 310L SS were carried out in nitric acidCorrosion Resistant Metals Materials Selection Guide Engineered combinations use Swagelok 316/316L tube fittings with tubing from alloys 254,904L,825,or Tungum nitric acid 316l compatibility versus 304l(copper alloy UNS C69100) tubing.Elevated chromium and nickel levels in 316/316L provide Swagelok tube fittings with higher resistance to localized corrosion.Chemical Compatibility Database from Cole-ParmerThe information in this chart has been supplied to Cole-Parmer by other reputable sources and is to be used ONLY as a guide in selecting equipment for appropriate chemical compatibility.Before permanent installation,test the equipment with the chemicals and under the specific conditions of your application.
- Acid nitric HNO3 - Acid mixed (nitric/sulphuric) HNO3 + H2SO4 - Acid,sulphuric 70% to 90% H2SO4 above ambient temperature - Acid,oleum H2SO4 (Nordhousen,fuming sulphuric) For further definitive information,we recommend contacting the chemical supplier or at least testing samples under actual service conditions.Chemical Compatibility Chart- Acid nitric HNO3 - Acid mixed (nitric/sulphuric) HNO3 + H2SO4 - Acid,sulphuric 70% to 90% H2SO4 above ambient temperature - Acid,oleum H2SO4 (Nordhousen,fuming sulphuric) For further definitive information,we recommend contacting the chemical supplier or at least testing samples under actual service conditions.Chemical Compatibility Chart - LDPE,HDPE,PP,Teflon Nitric acid 50 % LDPE at 20 nitric acid 316l compatibility versus 304l#176;C shows little or damage after 30 days.HDPE at 20 nitric acid 316l compatibility versus 304l#176;C LDPE at 50 nitric acid 316l compatibility versus 304l#176;C show effect after 7 days.HDPE at 50 nitric acid 316l compatibility versus 304l#176;C shows immediate damage and is not recommended.Nitric acid 70 % LDPE / HDPE at 20 nitric acid 316l compatibility versus 304l#176;C show some effect after 7 days.LDPE / HDPE at 50 nitric acid 316l compatibility versus 304l#176;C show immediate damage.Not recommended.n-octane
304L 305 308 309 309s 310 310s 314 316 316L 317 D319 321 347 348 384 385 304L 304 302 316L 316 316 347 Nitric Acid Sulfuric Acid and Ferrous Sulfate Concentration,Temperature,Length of M% F Exposure 245 220 2 yr AlSl Type of st,nl:,,s -__-CHEMICAL COMPATIBILITY CHART STAINLESS STEELCHEMICAL COMPATIBILITY CHART .STAINLESS STEEL .Our products can be exposed to a huge variety of chemicals.The data table below is an application guide,and indicates the Nitric Acid (20%) A-Excellent Nitric Acid (50%) A-Excellent Nitric Acid (5-10%) A-Excellent Nitric Acid (Concentrated) A-Excellent Nitrobenzene B-Good:CHEMICAL COMPATIBILITY CHART Metallic MaterialsCHEMICAL COMPATIBILITY CHART Metallic Materials Used in Bal Seal Products Technical Report TR-60C (Rev. nitric acid 316l compatibility versus 304l#216;; 5-28-99) 316L 316LVM C-276 X750 12614 Leadloy 7075-T6 6061-T6 Acid,Nitric 65% A A A A A A NA NA NA NA NA NA NA Acid,Nitric 100% NR NR A
protection,e.g.,for Type 316L (S31603) acid coolers.Types 304 and 304L and the molybdenum-bearing grades,Types 316 and 316L,are generally resistant to strong sulphuric acid at ambient temperature and,unlike carbon steel and cast iron,resist erosion-corrosion.Corrosion resistance of these grades is good up to about 6 m/s (20 ft/s)316L on 304L base mat.- American Welding SocietyFeb 02,2003 nitric acid 316l compatibility versus 304l#0183;In some applications however,the Mo contained in the 316 is an undesirable element.(e.g.Nitric acid service) If you therefore want to make the substitution,I would suggest the following 1) Topic Welding Industry / Technical Discussions / 316L on 304L base mat.316L SS - Sulphuric AcidType 316/316L stainless steel is a molybdenum beraing grade of steel.The presence of molybdenum gves this stainless steel better overall corrosion resistance properties than types 301 and 304 stainless steel.Type 316 gives useful service at room temperature in sulphuric acid of concentrations lower than 15% wt.and greater than 85% wt.
Acetic Acid,5% A Acetic Acid,10% A Acetic Acid,20% A Acetic Acid,30% A Acetic Acid,50% A Acetic Acid,60% A Acetic Acid,80% B Material compatibility,product ratings and application details should be considered in the selection.Improper selection or use of products described herein can cause personal injury or product damage.4091 S 304L Stainless Steel Corrosion Resistance - TP304L 1.4307 The 18 to 19 percent of chromium which these alloys contain provides resistance to oxidizing environment such as dilute nitric acid,as illustrated by data for Alloy 304 below.Alloys 304 ,304L ,and 304H are also resistant to moderately aggressive organic acids304,304L versus 316 in corrosion resistance against Nov 24,2004 nitric acid 316l compatibility versus 304l#0183;We have a situation where several engineers are in disagreement regarding using 316 stainless steel in a nitric acid pumping scenario.A couple of guys say that under no conditions should 316 be used,only 304 or 304L.
304 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-304 Stainless Steel Chemical Compatibility Chart from ISM304 Stainless Steel Chemical Compatibility Char t ver 1-Nov-2018 Key to General Chemical Resistance [all data based on 72 nitric acid 316l compatibility versus 304l#176; (22 nitric acid 316l compatibility versus 304l#176;C) unless noted ] Acetic Acid,4-8% .A .Acetic Acid,10% B Acetic Acid,20% .B .Acetic Acid,80% D Acetic Acid,Glacial .C .Acetic Anhydride B18-8 Stainless steel,304,316 Stainless Steel Corrosion5.Intergranular Corrosion - all austentic stainless steels contain a small amount of carbon.At extremely high temperature,such as welding,the carbon forces local chrome to form chromium carbide around it,thus starving adjacent areas of the chrome it needs for its own corrosion protection.When welding,it is recommended you consider low carbon stainless such as 304L or 316L.
Stainless steel is an ideal corrosion-resistant material,there are variant grades of stainless steel,the most common stainless steel grades are 304L and 316L.There is no visible difference between 304L and 316L stainless steel,both are polished or grained the exact same way,you differentiate between them just by looking at them.