Monel K500 material properties physical and mechanical properties
Alloy K-500 is a nickel-copper alloy that combines the excellent corrosion resistance of Alloy 400 with greater strength and hardness. Alloy K-500 provides 3 times higher yield strength than Alloy 400. These enhanced properties are achieved primarily through the addition of aluminum and titanium elements and age hardening to nickel as the main element. During the age hardening process, trace amounts of Ni3 (titanium, aluminum) particles precipitated and entered the matrix.
Hold at 982°C for 30 minutes and then water quench and anneal. Hold at 593°C-607°C for 16 hours and then slowly cool in the furnace at 9.4°C – 3.8°C every hour until 482°C. Then it is cooled from 482°C to room temperature, which may require some boiler cooling, air cooling or quenching, regardless of the cooling rate.
K-500's low magnetic permeability, high strength and good corrosion resistance have been widely used, mainly in oil well detection equipment and electronic components.


Material properties
long term organizational stability
High mechanical strength and hardness
Same corrosion resistance as Alloy 400
Hot corrosion resistance
Room temperature mechanical properties (hardness) of Monel K500 alloy:
Strips, sheets and pipes are generally ≤85HRB
Rods are generally 140~315HB
Medium thickness plate is 260~337HB
Physical properties
Density0.318 lb/in 38.80g/cm3
Melting point 1300 - 1350 °C
Yield strength (0.2% Offset)ksi482-621
Heating energy 0.427 J/g-°C
Modulus of elasticity 26 000 ksi
Resistivity 5.11e-005 ohm-cm
Magnetic 200H(At 70 F)
Elongation%MPa25-60
Tensile strengthMPa70-90





