A study was conducted to determine if nichrome resistance heating wire or stainless steel immersion heater is better for use to heat water in a boiler container. These two heaters were designed to provide power about 150W.  Introduction The aim of this analysis is to find which of the two conducting elements-Nichrome electric resistance heating … Continue reading Nichrome Wire or Stainless steel immersion heater! Which to choose?

Outstanding weldability was one of the basic goals in the alloy development programs. While the composition developed a matrix that was necessarily a solid-solution kind, the presence  of a relatively high content of niobium and its participation in a prolonged aging reaction caused concern for resistance to strain induced cracking while post-weld exposure to moderate … Continue reading Weldability features of Inconel alloy 625

Alkalies: Inconel alloy is the recommended material for handling ammonium hydroxide service or for elevated temperature applications that need resistance to sulfur corrosion. Inconel alloy is utilized to handle the alkaline sulfur solutions that are utilized in the production of sulfate or kraft paper. Inconel is fully resistant to ammonia solutions at the whole concentrations and … Continue reading Functionality of Inconel alloy in the various media

Inconel is a high nickel containing alloy. It consists of the maximum nickel content and offers resistance specifically at the elevated temperatures. It is an excellent material for use in the sulfur free conditions. Inconel alloy can be utilized from cryogenic to above 1200oF. It is broadly utilized in the chemical plants. The applications include … Continue reading Inconel and Hastelloy alloy C-Corrosion resistance properties

Stainless steel grades 316, 304L, 321, 347 are discussed. Chemical composition   316 304L 321 347 Carbon .08 % .03 % .08 % .08 % Chromium 16 to 18 % 18 to 20 % 17 to 19 % 17 to 19 % Molybdenum 2 to 3% – – – Iron Rem Rem Rem Rem Titanium – … Continue reading Stainless steel corrosion resistance properties

Sulfurous Acid Sulfurous acid is normally of very corrosive nature . The solutions of sulfurous acid and calcium bisulfate utilized to prepare sulfite paper pulp are also of extremely attacking nature in the dilute solutions like exist in spent cooking liquor or in the paper itself. The corrosion resistance is superior and significant magnitude of Monel … Continue reading Corrosion resistance properties of Monel alloy 400

Queries commonly made up about the comparative resistance of Monel alloy 400 and Monel alloy K-500 against the stress corrosion cracking in the presence of HF, specifically in applications for pressure gauges utilized in refinery HF alkylation plants. However Monel alloy 400 is found to be slightly more resistant to stress corrosion cracking in the … Continue reading SCC resistance of Monel K-500 vs. Monel 400 in Hydrofluoric acid

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