Comparison of corrosion resistance of various materials

This question is too broad! Please tell me specifically which materials to compare.

2# hzggp: Mainly the corrosion resistance and temperature resistance of CPVC PTFE SUS304 SUS316, thank you.

Comparisons can only be made based on the usage environment and conditions.

What materials are needed? The range is too wide.

Serial number and grade code Applicable media 1 1Cr18Ni9 (Ti) 304, 18-8, B Organic acids, low temperature and low concentration various acid and alkali salts 2 00Cr18Ni9 304L Organic acids, low temperature and low concentration various acid and alkali salts, resistant to intergranular corrosion 3 0Cr18Ni12Mo2 (Ti) 316, M Dilute sulfuric acid, phosphoric acid, organic acids, corrosion resistance better than 304 4 00Cr18Ni12Mo2Ti 316L Dilute sulfuric acid, phosphoric acid, organic acid, corrosion resistance better than 304, resistance to intergranular corrosion 5 0Cr20Ni25Mo5Cu2 904 Organic acid (acetic acid, formic acid, etc.), phosphoric acid, low-temperature dilute sulfuric acid and hydrochloric acid 6 00Cr20Ni25Mo5Cu2 904L Organic acids (acetic acid, formic acid, etc.), phosphoric acid, low-temperature dilute sulfuric acid and hydrochloric acid, resistant to intergranular corrosion 7 0Cr30Ni42Mo3Cu2 804 (Inco alloy) High temperature and high concentration caustic soda and salt and high temperature 40% ~ 50% sulfuric acid 8 0Cr20Ni42Mo3Cu2 824 (Inco alloy) High temperature and high concentration caustic soda and salt and high temperature 40% ~ 50% sulfuric acid 9 0Cr24Ni20Mo2Cu3 K alloy ≤ 60 ℃ various concentrations of sulfuric acid 10 0Cr26Ni5Mo2Cu3 CD-4MCu dilute sulfuric acid, phosphoric acid (age hardening and wear resistance) 11 00Cr25Ni6Mo2 MM-4 special steel for nitric acid phosphate fertilizer 12 0Cr18Ni5Mo5 NH55 seawater 13 0Cr21Ni32Mo2Cu3 No. 20 alloy dilute sulfuric acid (t≤130℃, concentration about 40%) 14 00Cr10Ni20Mo1.5Si6Cu SS920 Concentrated sulfuric acid (t≤130℃, concentration 93%~98%) 15 0Cr12Ni25Mo3Cu3Si2Ni 941 Full concentration room temperature sulfuric acid, especially suitable for medium concentration (about 50%) sulfuric acid below 100℃ 16 0Cr30Ni6Mo2Mn1.5 PD alloy dilute sulfuric acid (concentration 1% ~ 1.5%, temperature <80℃) 17 0Cr27Ni31Mo4.5Cu2 No. 28 alloy (ZS28) Hydrochloric acid slurry 18 0Cr13Ni7Si4 S-05 steel medium-concentrated and medium-temperature sulfuric acid 19 0Cr17Ni17Si5 S-05 steel (Japan) high-concentrated and high-temperature sulfuric acid 20 00Cr14Ni14Si4 C4 Full concentration nitric acid, especially suitable for concentrated nitric acid, is currently the best comprehensive performance casting for concentrated nitric acid steel 21 00Ni65Cu28Fe2.5Mn1.5 Monel alloy non-oxidizing medium, hydrofluoric acid, sodium hydroxide solution, high temperature caustic soda, etc. 22 0Ni60Mo22Fe20 Hastelloy A Sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, formic acid, etc. 23 0Ni65Mo28Fe5V Hastelloy B Sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, formic acid, etc. 24 0Ni60Mo18Fe8Cr17Cu2.5Mn Hastelloy C Cold nitric acid, hypochlorous acid, hydrofluoric acid, etc. 25 STNiCr202 Nickel cast iron high temperature and high concentration caustic soda 26 STSi15 High silicon corrosion-resistant cast iron (G) Nitric acid, chromic acid, sulfuric acid, etc. (excluding HCl) 27 ZGCr28 High chromium cast iron (E) Concentrated nitric acid 28 TA2 Industrial pure titanium oxidizing corrosion medium 29 TiAl6V4 TC4 Oxidizing corrosion medium 30 TiMo32 Titanium 32 molybdenum alloy oxidizing and reducing corrosion medium, etc. 31 TiPd0.2 Titanium palladium alloy oxidizing corrosion medium, strong resistance to crevice corrosion, and certain corrosion resistance to reducing acids 32 TiMo0.3Ni0.8 Titanium-molybdenum-nickel alloy is similar to TiPd0.2, and the price is lower than TiPd0.2 33 TiTa5 Titanium-tantalum alloy hot concentrated nitric acid and synthetic resin and other strong corrosive media

Serial number and grade code Applicable media 1 1Cr18Ni9 (Ti) 304, 18-8, B Organic acids, low temperature and low concentration various acid and alkali salts 2 00Cr18Ni9 304L Organic acids, low temperature and low concentration various acid and alkali salts, resistant to intergranular corrosion 3 0Cr18Ni12Mo2 (Ti) 316, M Dilute sulfuric acid, phosphoric acid, organic acids, corrosion resistance better than 304 4 00Cr18Ni12Mo2Ti 316L Dilute sulfuric acid, phosphoric acid, organic acid, corrosion resistance better than 304, resistance to intergranular corrosion 5 0Cr20Ni25Mo5Cu2 904 Organic acid (acetic acid, formic acid, etc.), phosphoric acid, low-temperature dilute sulfuric acid and hydrochloric acid 6 00Cr20Ni25Mo5Cu2 904L Organic acids (acetic acid, formic acid, etc.), phosphoric acid, low-temperature dilute sulfuric acid and hydrochloric acid, resistant to intergranular corrosion 7 0Cr30Ni42Mo3Cu2 804 (Inco alloy) High temperature and high concentration caustic soda and salt and high temperature 40% ~ 50% sulfuric acid 8 0Cr20Ni42Mo3Cu2 824 (Inco alloy) High temperature and high concentration caustic soda and salt and high temperature 40% ~ 50% sulfuric acid 9 0Cr24Ni20Mo2Cu3 K alloy ≤ 60 ℃ various concentrations of sulfuric acid 10 0Cr26Ni5Mo2Cu3 CD-4MCu dilute sulfuric acid, phosphoric acid (age hardening and wear resistance) 11 00Cr25Ni6Mo2 MM-4 special steel for nitric acid phosphate fertilizer 12 0Cr18Ni5Mo5 NH55 seawater 13 0Cr21Ni32Mo2Cu3 No. 20 alloy dilute sulfuric acid (t≤130℃, concentration about 40%) 14 00Cr10Ni20Mo1.5Si6Cu SS920 Concentrated sulfuric acid (t≤130℃, concentration 93%~98%) 15 0Cr12Ni25Mo3Cu3Si2Ni 941 Full concentration room temperature sulfuric acid, especially suitable for medium concentration (about 50%) sulfuric acid below 100℃ 16 0Cr30Ni6Mo2Mn1.5 PD alloy dilute sulfuric acid (concentration 1% ~ 1.5%, temperature <80℃) 17 0Cr27Ni31Mo4.5Cu2 No. 28 alloy (ZS28) Hydrochloric acid slurry 18 0Cr13Ni7Si4 S-05 steel medium-concentrated and medium-temperature sulfuric acid 19 0Cr17Ni17Si5 S-05 steel (Japan) high-concentrated and high-temperature sulfuric acid 20 00Cr14Ni14Si4 C4 Full concentration nitric acid, especially suitable for concentrated nitric acid, is currently the best comprehensive performance casting for concentrated nitric acid steel 21 00Ni65Cu28Fe2.5Mn1.5 Monel alloy non-oxidizing medium, hydrofluoric acid, sodium hydroxide solution, high temperature caustic soda, etc. 22 0Ni60Mo22Fe20 Hastelloy A Sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, formic acid, etc. 23 0Ni65Mo28Fe5V Hastelloy B Sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, formic acid, etc. 24 0Ni60Mo18Fe8Cr17Cu2.5Mn Hastelloy C Cold nitric acid, hypochlorous acid, hydrofluoric acid, etc. 25 STNiCr202 Nickel cast iron high temperature and high concentration caustic soda 26 STSi15 High silicon corrosion-resistant cast iron (G) Nitric acid, chromic acid, sulfuric acid, etc. (excluding HCl) 27 ZGCr28 High chromium cast iron (E) Concentrated nitric acid 28 TA2 Industrial pure titanium oxidizing corrosion medium 29 TiAl6V4 TC4 Oxidizing corrosion medium 30 TiMo32 Titanium 32 molybdenum alloy oxidizing and reducing corrosion medium, etc. 31 TiPd0.2 Titanium palladium alloy oxidizing corrosion medium, strong resistance to crevice corrosion, and certain corrosion resistance to reducing acids 32 TiMo0.3Ni0.8 Titanium-molybdenum-nickel alloy is similar to TiPd0.2, and the price is lower than TiPd0.2 33 TiTa5 Titanium-tantalum alloy hot concentrated nitric acid and synthetic resin and other strong corrosive media

Plastic is greater than special steel, stainless steel is greater than carbon steel.