Stainless Alloy Steel - Monel Stainless Steel

Monel Stainless Steel K-500 It is an external nickel copper alloy that combines the excellent corrosion resistance of alloy 400 with greater strength and hardness. Alloy K-500 provides a yield strength three times higher than alloy 400. These enhanced characteristics require the addition of aluminum and titanium elements on top of nickel as the main element, as well as age hardening. During the aging hardening process, trace amounts of Ni3 (titanium, aluminum) particles precipitated into the matrix. The low magnetic permeability, high strength, and corrosion resistance of K-500 steel are widely used in oil well detection equipment and electronic components. An important characteristic is that K-500 remains non-magnetic even at very low temperatures. Time hardening will result in the original volume shrinkage. During the time hardening process, a round rod with a diameter of 2.5 × 10-4 inches undergoes shrinkage. To achieve good performance, the typical aging hardening process is maintained at 982 ℃ for 30 minutes and then water quenched and annealed. After being maintained at 593-607 ℃ for 16 hours, it is slowly cooled in the furnace at 9.4 ℃ -3.8 ℃ per hour until it reaches 482 ℃. Afterwards, cooling from 482 ℃ to room temperature may require some furnace cooling, air cooling, or quenching in between, without considering the cooling rate.