Model K-500 alloy

Model K-500 （UNS N05500）

To precipitation hardening nickel copper alloy, with Monel 400 alloy corrosion resistance but also better than its strength and hardness. Has low permeability, has a non-magnetic at -101 ° C under. For the shaft, oil tools and equipment, squeegee blades, springs, valve, fasteners and marine propeller shafts.

Model K-500 alloy chemical composition

	C	S	Al	Cu	Ni	Fe	Ti	Mn	Si
Min			2.3	27.0	63.0		0.35
Max	0.18	0.01	3.15	33.0		2.0	0.85	1.5	0.5

Model K-500 alloy Physical Properties

Density Density,g/cm3	8.44
Melting point Melting Range,℃	1315-1350

Model K-500 alloy Mechanical Properties

Tensile strength Mpa	Yield Strength Mpa	Elongation ,%
160-1100	115-790	20

Model K-500 alloy Metallurgical structure
Monel K500 also has a face-centered cubic structure, due to the added ingredient Monel 400 Al and Ti, can generate submicroscopic γ 'precipitates (Ni3Al) on the substrate in the aging state.

Model K-500 alloy Property
Monel K500 has a variety of media corrosion resistance, chloride ion stress corrosion cracking, high strength and hardness. Under the state of aging, mechanical properties than Monel 400 about 2 to 3 times stronger, at up to 650 ℃ still has a high tensile strength, good resistance to corrosion fatigue, low permeability, at a low temperature of -135 under ℃ still has non-magnetic.

Model K-500 alloy Corrosion
Typically, 400 Monel K500 similar corrosion resistance and Monel. The most outstanding performance in corrosion resistance can be resistant to a variety of media corrosion from water to inorganic acids, salts and alkalis.

Monel K500 obviously resistant to chloride stress corrosion cracking. In the aging state, close to the yield strength of the alloy stress most susceptible to stress corrosion cracking in hydrofluoric acid vapor.

Monel K500 exhibited in high-speed flow of seawater and marine atmosphere of good corrosion resistance, but in slow motion or still waters, but it will happen pitting. Monel K500 acid gas also showed good corrosion resistance.

Model K-500 alloy application
1.In the marine environment (high strength and resistance to seawater corrosion) of the valve seals, pump sleeve, wear rings;
2.Fasteners such as bolts, used in the marine atmosphere and tidal water, chlorine ion environment corrosion resistance;
3.Doctor blade and the blade;
4.Lanyard metal --- high strength, non-magnetic and corrosion resistance to seawater;
5.Oil well drilling equipment, such as non-magnetic drill, valve and instrument sleeve --- chlorine-resistant and acid gas ion medium environmental corrosion;
6.--- Spring resistant to a variety of corrosive media;
7.Nonmagnetic aircraft instrument parts.

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