pitting

Sulfuric acid is a commonly used chemical in the processing sector. Its corrosive effect on service material varies significantly, based on contaminants, temperature and water concentration. It is a problem with micro process equipments with thin walls. These equipments are usually joined by diffusion bonding that may affect material’s properties due to high temperatures and … Continue reading Hastelloy grades for sulfuric acid applications at different temperatures

While Monel 400 offers superior resistance to SCC in aerated acid, it is not adequate to prevent damage. Monel K500 and 400 grades are exposed to corrosive conditions in vapor phase of hydrofluoric acid in the presence of oxygen. Studies emphasize the need to eliminate air in the vapor phase above the acid. As HF … Continue reading Which alloy should be used in oil refinery processes for better performance

Nickel based alloys are mainly known for their resistance to aqueous corrosion however they are also commonly used at the elevated temperatures when carbon and other low alloyed steels do not offer suitable corrosion resistance and strength. They are used in applications which demand high temperature oxidation resistance or elevated temperature strength. Construction material is … Continue reading High temperature Inconel alloys for heat and oxidation resistance

Corrosion in chemical processing media often reduces with increase in their pH level. In alkaline solutions, hydrogen ions are usually present in nominal magnitudes. Although, various metals can withstand some pH, often basic in nature but experience severe corrosion with increase in pH level. Usually alkali corrosion is led by pitting and other types of … Continue reading Which high nickel alloy provides the best performance in alkali media

A major limitation of stainless steel is that it is highly susceptible to chloride based localized attack like crevice, pitting and stress corrosion cracking. Hastelloy C276 is the most resistant nickel based super alloy to the chloride based localized corrosion that limits the applications of austenitic stainless steels. In various cases, stress corrosion cracking was … Continue reading How Nickel based super alloys are superior to traditional stainless steels

It is true to state that seawater is probably the most common example of aqueous salt solution. It will not just encounter with the marine based transportation and offshore related oil rigs, but it can also work well as coolant in some of the coastal facilities. Now, there are some materials used for the industrial … Continue reading Proficient Use Of Hastelloy C22 In Aqueous Solutions

Nickel based alloy are one of the essential classes of engineering materials that are widely used in the various environments and applications. These materials are chosen for aqueous and high temperature corrosion resistance applications. Nickel base alloys are used at cryogenic temperatures and reaching 1200oC because the matrix of solid solution alloys remains austenitic from … Continue reading Hastelloy C276 for the most aggressive chemical operation conditions

Hastelloy C276 is today known as a universally corrosion resistant material and is used in various environments from moderately oxidizing to strong reducing conditions. The limiting factor when dealing with strong oxidizing environments is the low Cr content which indicates that hot and concentrated nitric acid environments are not required. This alloy has exceptional resistance … Continue reading Hastelloy C276 Bar- Highly useful in aggressive environments

Hastelloy C276 wire has high resistance in various corrosive media & is especially resistant to pitting & crevice corrosion. Main features of Hastelloy C276 wire making it widely useful are Suitable for sea water applications. High corrosion resistance in various corrosive media such as chloride ions & sulphur compounds. Resists the corrosive effects of wet … Continue reading Hastelloy C276 wire- Extensive use in chemical process industries

Inconel 625 is a nickel-chromium-molybdenum alloy that is popular for its high strength, good fabricability and excellent corrosion resistance. Its outstanding corrosion resistance properties increase the alloy’s demand in a wide range of applications that involve high temperature and corrosive environments. High alloy content of Inconel 625 enables it to withstand diverse severely corrosive conditions. … Continue reading Inconel 625- A versatile corrosion resistant material for chemical plants