With nominal exceptions, organic acids are weak and non-oxidizing in nature. The usually encountered acids are monocarboxylic acids such as formic acid, acetic acid, propionic acid and butyric acids. Commonly the corrosivity of these acids becomes weaker with increasing the length of carbon chain. Therefore, formic acid is the most powerful corrosive acid; aeration and … Continue reading High Nickel alloy’s corrosion behavior in Organic acid

Nickel alloy 200 The excellent property of Nickel alloy 200 is its resistance capability against caustic soda and other alkalies (excluding ammonium hydroxide). The alloy is not corroded by anhydrous ammonia or ammonium hydroxide in concentrations about 1%. Higher concentrations can result in quick corrosion in the availability of dissolved oxygen. Nickel alloy 200 provides outstanding … Continue reading Nickel alloy’s resistance performance in Alkali media

Pure phosphoric acid has no influential oxidizing power and is categorized as a non-oxidizing acid as dilute sulfuric acid. Industrial phosphoric acid, although often contains contaminants like fluorides and chlorides that remarkably improve its corrosivity. Oxidizing compounds like ferric salts may also be available to influence corrosion. Probably due to change in magnitudes of impurity … Continue reading Alloys for Performance in Phosphoric acid

Nitric acid is a strong oxidizing agent hence, alloys offering the excellent resistance are those which produce passive oxide layers. The alloys containing crucial magnitude of chromium provide superior resistance as compare to those having lesser Cr content. While nickel based alloys provide high resistance to pure nitric acid,these are specifically effective in the combined … Continue reading Nickel based alloys- Performance in Nitric acid

In the present time, nickel based materials are utilized in buildings, water supply systems, food preparation, energy industry, chemical industry, transport industry, electronic parts and medical equipments. Nickel Properties High melting point up to 1453oC Reliable oxide layer Resists alkalis Ductile Alloys readily act as solute and solvent Magnetic at room temperature Deposited by electroplating … Continue reading Uses of Super-Metal Nickel

Nickel based super alloys are the proven materials for use in the chemical processing units. Since discovery, they have been verified for providing the desired performance in the chemical engineering plants much better than traditional austenitic stainless steels and super austenitic stainless steel grades. Hastelloy C and Hastelloy X grades are the latest developments that … Continue reading Heat and Corrosion resistant alloys for chemical units