What is monel K500 equivalent to?
Monel K-500
UNS N05500
Other Common Names: Alloy K500
Monel K500 is a precipitation-hardened nickel-copper alloy that combines the excellent corrosion resistance characteristics of Monel 400 with increased strength and hardness. These enhanced strength and hardness characteristics are achieved by the addition of aluminum and titanium to the nickel-copper base and a heat treatment to achieve precipitation (commonly referred to as age hardening or aging).
Monel K-500
In the age-hardened condition, Monel K-500 is more susceptible to stress corrosion cracking than Monel 400 in certain environments. Compared to Alloy 400, Alloy K-500 has approximately three times the yield strength and approximately twice the tensile strength of Alloy 400. In addition, it can be further strengthened by cold working prior to precipitation hardening. This nickel-steel alloy maintains strength to 1200° F, yet remains ductile and tough at 400° F. Its melting range is 2400-2460° F.
This nickel alloy is spark resistant and nonmagnetic at -200° F. However, a magnetic layer may form on the surface of the material during processing. Aluminum and copper may be selectively oxidized during heating, leaving a magnetic nickel-rich film on the exterior. Pickling or bright dipping in acid can remove this magnetic film and restore nonmagnetic properties.
What forms of Monel K500 does Gnee Steel offer?
Bars
Rods
Corrosion Resistant Monel K-500
The corrosion resistance of Alloy K-500 is roughly equivalent to Alloy 400, except that in the age-hardened condition, Nickel Alloy K-500 is more susceptible to stress corrosion cracking in certain environments. Monel K-500 has been found to be resistant to sour gas environments. Very low corrosion rates in high-velocity seawater and high strength make K-500 alloy particularly suitable for shafts in marine centrifugal pumps. In stagnant or slow-moving seawater, fouling may occur followed by pitting, but this pitting slows down after a fairly rapid initial attack.
What are the characteristics of Monel K500?
Corrosion resistance in a wide range of marine and chemical environments. From pure water to non-oxidizing mineral acids, salts and bases.
Excellent resistance to high-velocity seawater
Resistant to sour gas environments
Excellent mechanical properties from sub-zero temperatures to about 480C
Non-magnetic alloy
