MonelK-500 alloy has a strong aging cracking tendency after large cold deformation. Cracks initiate on the surface and propagate towards the center. There are both transcrystalline and intercrystalline forms.
The superposition of residual stress caused by cold working and aging thermal stress, as well as the preferential embrittlement of the surface layer at the initial stage of aging, are the main reasons for aging cracking of Monel K500 alloy.
Monel K500 alloy has excellent corrosion resistance, and has higher strength and hardness than Monel 400. This is due to the addition of elements such as Al and Ti to the alloy, and after a certain heat treatment, there are dispersed intermetallic compounds on the substrate.
Monel K500 has about three times the yield strength and twice the tensile strength of Monel 400, and higher mechanical properties can be obtained by cold working or age hardening. Monel K500 alloy has the same corrosion resistance as Monel 400 alloy.
Monel K500 alloy has the same corrosion resistance as Monel 400 alloy.
Generally, the corrosion resistance of Monel K500 in solid solution is basically the same as that of Monel 400 alloy, so the corrosion resistance data of Monel 400 can be applied to Monel K500 alloy. Due to its low corrosion rate and high strength in flowing seawater, the alloy is particularly suitable for manufacturing seawater corrosion-resistant centrifugal pump shafts.
Monelk500, also known as UNS N05500, has the same corrosion resistance as monel400, but has higher mechanical strength and hardness. It has good corrosion resistance and long-term organizational stability.
Monel k500 has good corrosion resistance and long-term organizational stability.
Adding a small amount of Mg to Monel K-500 alloy can increase the grain boundary bonding force and improve high temperature plasticity.
The alloy is slightly magnetic at room temperature. Monel 400 is widely used in the chemical, oil and marine industries.
It is resistant to most alkalis, salts, waters, food products, organic substances and atmospheric conditions at normal and elevated temperatures.
This nickel alloy is attacked in sulfur-bearing gases above approximately 700¡ã F and molten sulfur attacks the alloy at temperatures over approximately 500¡ã F.
This alloy is more resistant to nickel under reducing conditions and more resistant than copper under oxidizing conditions, it does show however better resistance to reducing media than oxidizing.
It has good mechanical properties from subzero temperatures up to about 480C.
Alloy 400 is resistance to neutral, alkaline and acid salts is shown, but poor resistance is found with oxidizing acid salts such as ferric chloride.
Monel 400 has excellent resistance to chloride ion stress corrosion cracking.
Monel 400 is widely used in Feed water and steam generator tubing.
Monel 400 is widely used in Brine heaters, sea water scrubbers in tanker inert gas systems.
Alloy 400 is virtually immune to chloride ion stress corrosion cracking in typical environments.
Monel 400 is a Nickel-Copper alloy, resistant to sea water and steam at high temperatures as well as to salt and caustic solutions.
Monel 400 is a nickel-copper alloy with excellent corrosion resistance in a wide variety of media. Monel 400 is characterized by good general corrosion resistance, good weldability and moderate to high strength.
Generally, its corrosion resistance is very good in reducing environments, but poor in oxidizing conditions.
The alloy has been used in a variety of applications. It has excellent resistance to rapidly flowing brackish water or seawater. It is particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated.
It is not useful in oxidizing acids, such as nitric acid and nitrous.
Alloy 400 is a nickel copper solid solution strengthened alloy. The alloy is characterized by moderate strength, good weldability, good general corrosion resistance and good toughness.
It is suitable for temperatures up to 1000¡ãF (538¡ãC). Alloy 400 has excellent resistance to cavitation and erosion in fast-flowing brackish or seawater.
Alloy 400 also has excellent corrosion resistance in a variety of media including seawater, hydrofluoric acid, sulfuric acid and alkalis. Used in marine engineering, chemical, hydrocarbon processing equipment and heat exchangers.
Alloy 400 is virtually immune to chloride stress corrosion cracking in typical environments. Generally, its corrosion resistance is good in reducing environment, but poor in oxidizing environment.
This alloy is not suitable for highly oxidizing acids such as nitric acid and nitrous acid. It is resistant to sulfuric acid up to 80% and hydrochloric acid solutions up to 20%.
The alloy can be machined at satisfactory speeds with machine tools commonly used in the industry. Generally, cold drawn or cold drawn stress relief materials are recommended for the best machinability and smoothest finish.
