Hastelloy C276 (also known as Hastelloy C, UNS10276) and Alloy 20 are two high-performance alloy materials that are widely used in various industrial fields. Below is a comparative analysis of two alloys:
Hastelloy C276 is a super austenitic stainless steel containing nickel, chromium, molybdenum, and tungsten, designed to resist various harsh corrosive environments.
Alloy 20 is a nickel-based alloy containing molybdenum and copper, which also exhibits excellent corrosion resistance.
Hastelloy C276
Performance Corrosion Resistance:
Hastelloy C276: It can resist the corrosion of wet chlorine, various oxide chlorides, chloride salt solutions mixtures of sulfuric acid and oxidizing salts, sulfurous acid, and various concentrations of organic acids, even at boiling temperatures. Additionally, it can effectively pitting and crevice corrosion caused by chlorides and shows high corrosion resistance in seawater environments.
Alloy 20: It has good resistance to oxidative moderately reducing corrosions, excellent resistance to stress corrosion cracking, and good resistance to local corrosion. It can resist the erosion of various strong acids (such as sulfur acid, hydrochloric acid, phosphoric acid, etc.) and strong bases (such as sodium hydroxide, etc.), as well as good resistance to by chloride ions. High-Temperature Stability: Hastelloy C276: It maintains high strength and good mechanical properties at high temperatures (up to1500°F/815°C), and shows excellent oxidation resistance at even higher temperatures
Alloy 20
Processability:
Hastelloy276: It can be shaped through both cold and hot working, making it easy to manufacture complex-shaped parts.
Alloy 20: It has hot and cold working properties, making it easy to form various shapes.
Applications
Hastelloy C276: It is widely used in working conditions, such as in the chemical, oil, pharmaceutical, and food processing industries, especially in situations where resistance to harsh corrosive environments is required.
Alloy 20: It is also widely used in various industries, including chemical, oil, food processing, pharmaceuticals, and marine engineering. In the chemical industry it is often used to manufacture pressure vessels, pipelines, heat exchangers, reactors, evaporators, and storage tanks; in the oil industry, it is to manufacture corrosion-resistant parts and equipment; in the food processing industry, it effectively prevents corrosive damage from acidic foods, ensuring food production safety; in the pharmaceutical, it is used to produce equipment for mixing and drug production; in marine engineering, it is used to manufacture seawater desalination devices, marine vessels, other equipment resistant to seawater corrosion.