| Material Group |
Characteristics |
Typical application |
| Titanium Alloy |
Titanium |
| Titanium Gr 2 |
High resistance to pitting, crevice corroston resistance.High resistance to stress corrosioncracking, corrosion fatigue and erosion. |
Chemical processes .oil refining and Pulp and paper mills equipment. |
| Titanium Gr 3 |
| Titanium alloy |
| Titanium Gr 5 |
Higher strength with (AI.Mo, Sn ,V). Higher corrosion resistance in reducitc acid with Pt content |
|
| Titanium Gr 6 |
Chemical processes . oil refining and Pulp and paper mills equipment. |
| Titanium Gr 12 |
| Titanium Pd7B |
|
| Nickel Alloy |
Nickel |
| Nlckel200 |
Superior corrosion resistance to carbon add solution such as soda calcium carbonate. |
Alkali salt and concentrated salt Chemical and oil processes equipment |
| Nickel201 |
| Ni alloy |
| Monel 400 |
Superior corrosion resistance under reducing environment, and stress corrosion cracking resistance. |
Chemical processes handing alkali chloride and boiled acid, also for oil refining. |
| Monel K500 |
| Inconel 600 |
Superior corrosion resistance to pure water and alkali under oxidizing and high temperature environment; also resistance to stress corrosion cracking by Cl ions. |
Chemical and food processes. |
| Inconel 625 |
Superior corrosion resistance under oxidizing and high temperature environment; and superior erosion resistance. |
Chemical processes in general. |
| Incoloy 800 |
Superior mechanical strength at high temperature and restetance to carbuirizing with stabilized structure to be used for long duration: also superior corrosion resistance under humid environment. |
Petrochemical and carburizing processes. |
| Incoloy 825 |
Superior corrosion resistance to sulfuric acid and phosphoric acid;also resistance to stress corrosion cracking and crevice corrosion. |
Chemical processes in general. |
| Hastelloy B |
Resistance to hydrochloric acid of any concentration up to boiling point. resistance to reducing chloride such as sulfuric acid, phosphoric acid and copper chloride, resistant to high temperature but not suitable under highly oxidizing environment. |
Corrosion resistance processes handling chlorine, sulfuric acid, phosphoric acid, acetic acid and hydrogen chloride gas, also for processes handling chloride with high concentration at high temperature. |
| Hastelloy B-2 |
| Ha8telloy C276 |
Superior resistance under oxidizing environment, such as wet chlorine gas and chlodne dioxide; also resistance to organic and chloride such as acetic acid and seawater. |
Processes handling oxidizing acid, formic acid.acetic anhydride and seawater, also for chemical processes handling fluoride. |
| Hastelloy C-22 |
| |
| Hastelloy C-4 |
Higher intergranular corrosion resistance than HastelloyB. |
Acetic acid, chemical manure, agricultural pesticide processes. |
| Hastelloy G |
Superior corrosion resistance to mixed acid of phosphoric acid and oxidizing acid |
Processes handling sulfuric aild and phosphoric acid. |
| Hastelloy G30 |
| Zirconium |
Zirconium702 |
High resistance to pitting, crevfce corrosion resistance.High resistance to stress corrosion cracking, corrosion fatigue and erosion. Good in nearly all cases, excellent for high temperature acid. |
Nuclear cooling processes, chlorhydric acid .dilute sulphuric acid and alkali processes equipment |
| Zlrconium705 |
| Iron Based Alooy |
Duplex stainless steel |
| Duplex S31803 |
High cracking corrosion resistance to chloride environment high corrosion resistance to dilute sulphuric acid and phosphoric acid |
Pulp and paper mills, chemical processes,and seawater service. |
| Super-Duplex S32750 |
Higher stress corrosion cracking resistance than austenitic stainless steel. Higher weldability than ferritic stainless steel and higher acid,pitting and crevice corrosion resistance than CF3M with higher mechanical strength. |
Salt manufacturing processes, seawater desalination, and seawater service under chloride environment and dilute sulfuric acid. Phosphoric acid formic acid acetic acid and urea production underacid environment also for chemical processes. |
| Super-Duplex S32760 |
| Super austenitic stainless steel |
| 904L |
The most superior acid and alkali resistance among all austenitic stainless steel and superior pitting and crevfce corrosion resistance to chloride solution as seawater. |
Chemical processes for highly concentrated chloride, flue ges desutfurization,acid and alkali reactor.salt manufacturing processes and seawater desalination |
| 254SMO |
| AL-6XN |
| Austenitic stainless steel |
| 304 |
Super corrosion resistance to nitric acid phosporic acid and organic acid |
|
| 304L |
Higher intergranular corrosion resistance than CF8. |
|
| 316 |
Higher pitting corrosion resistance than CF8. |
Pulp and paper mills, chemical processes.and seawater service. |
| 316L |
Higher Intergranular corrosion resistance than CF8M. |
|
| 316T1 |
Higher intergranular corrosion resistance than CF3M with T. |
|
| 317 |
Higher pitting and crevice corrosion resistance than CF8. |
Power generation, seawater service and oil pipeline. |
| 317L |
| 347 |
Higher intergranular corrosion resistance than CF8M,carbide stablized with Nb. |
Pulp and paper mills, chemical processes,and seawater service. |
| 310 |
Sulfurous acid and dilute sulphuric acid with Higher Cr Ni content. |
Chemical processes. |
| 310s |
| Alloy 20 |
Superior corrosion resistance to nitric add of any concentration at 60OC and lower, and to heated dilute oxide. |
Chemical processes handing acetic add alkail,dilute hydrochloric acid, dilute hydrofluoric acid, dilute sulphuric acid and phosphoric: acid, also for oil refining. |
