What is the difference between Monel 400 and K Monel?
Monel is an alloy based on nickel 65-70% and copper 20-29%, and also contains up to 5% iron and manganese and other compounds. Depending on the proportions of various elements, Monel can be classified into different grades such as Monel 400, K500, R-405. In this article, we will discuss the various advantages and applications of Monel Round Bar.
Overview
Monel 400 Round Bars contain about 67% nickel and 23% copper, and they are resistant to high temperature seawater and steam as well as salt and alkaline solutions. Monel 400 Round Bars have properties such as good corrosion resistance, good weldability and high strength. It is widely used in marine applications and other non-oxidizing chloride solutions due to its low corrosion rate in fast-flowing salt water or seawater, excellent resistance to stress corrosion cracking in most fresh waters, and resistance to a variety of corrosive conditions. Monel 400 Round Bars are particularly resistant to hydrochloric acid and hydrofluoric acid after degassing. Monel 400 has excellent mechanical properties at sub-zero temperatures and can be used at temperatures up to 1000 degrees Fahrenheit, with a melting point of 2370-2460 degrees Fahrenheit.
Applications of Monel 400 Round Bar are as follows:-
• Offshore Engineering
• Chemical and Hydrocarbon Processing Equipment
• Gasoline and Fresh Water Tanks
• Crude Oil Distillers
• Degassing Heaters
• Boiler Feedwater Heaters and Other Heat Exchangers
• Valves, Pumps, Shafts, Fittings and Fasteners
• Industrial Heat Exchangers
• Chlorinated Solvents
• Crude Oil Distillation Towers
Overview
Monel K500 Round Bar is a precipitation hardened nickel-copper alloy bar that combines the excellent corrosion resistance characteristics of Monel 400 with increased strength and hardness. These improved properties, strength and hardness are achieved by adding aluminum and titanium to the nickel-copper base and by a heat treatment used to achieve precipitation (commonly referred to as age hardening or aging). Monel K-500 Bar is more susceptible to stress corrosion cracking than Monel 400 in certain environments. Compared to Alloy 400, Monel K-500 Bar has approximately three times the yield strength and twice the tensile strength. In addition, it can be further strengthened by cold working prior to precipitation hardening. This nickel-steel alloy maintains its strength to 1200 degrees Fahrenheit, yet remains ductile and tough down to 400 degrees F. Its melting range is 2400-2460 degrees Fahrenheit.
