MONEL K500 UNS NO 5500

MONEL K-500

UNS N05500

Other common names: Alloy K500

Monel K500 is a precipitation-hardenable nickel-copper alloy that combines the excellent corrosion resistance characteristic of Monel 400 with the added advantage of greater strength and hardness. These amplified properties, strength and hardness, are obtained by adding aluminum and titanium to the nickel-copper base and by a thermal processing used to effect precipitation, typically called age hardening or aging. When in the age-hardened condition, Monel K-500 has a greater tendency toward stress-corrosion cracking in some environments than Monel 400. Alloy K-500 has approximately three times the yield strength and double the tensile strength when compared with alloy 400.

Corrosion Resistant Monel K-500

The corrosion resistance of alloy K-500 is substantially equivalent to that of alloy 400 except that when in the age-hardened condition, nickel alloy K-500 has a greater tendency toward stress-corrosion cracking in some environments. Monel K-500 has been found to be resistant to a sour-gas environment. The combination of very low corrosion rates in high-velocity sea water and high strength make alloy K-500 particularly suitable for shafts of centrifugal pumps in marine service. In stagnant or slow-moving sea water, fouling may occur followed by pitting but this pitting slows down after a fairly rapid initial attack.

Corrosion resistance in an extensive range of marine and chemical environments. From pure water to non-oxidizing mineral acids, salts and alkalis.· Excellent resistance to high velocity sea water · Resistant to a sour-gas environment · Excellent mechanical properties from sub-zero temperatures up to about 480C · Non-magnetic alloy

  C MN S Si Ni Cu Al Fe Other

0.25 Max 1.5 Max 0.01 Max 0.5Max 63.00 Min 27-33 Max 2.3 3.15 2.0 Max 

Applications of Monel K-500
Sour-gas service applications · Oil and gas production safety lifts and valves · Oil-well tools and instruments like drill collars · Oil well industry · Doctor blades and scrapers · Chains, cables, springs, valve trim, fasteners for marine service · Pump shafts and impellers in marine service

Fabrication with Monel K-500 - Heavy machining of this alloy is best accomplished when the material is in the annealed condition or hot-worked and quenched condition. Age-hardened material however can be finish-machined to close tolerances and fine finishes. Therefore, the recommended practice is to machine slightly oversize, age-harden, then finish to size. During aging, a slight permanent contraction takes place, but little warpage occurs because of the low temperatures and slow cooling rates involved.

We can produce Monel K-500 bars as per the standard

As per heat treatment of Monel K-500 bars, we can do annealed treatment,or solution treatment,ageing treatment as per the requirement of the clients

Our Monel K-500 bars are 100% ultrasonic tested.

In order to control the quality of Monel K500 bars, we have following inspection equipment in our workshop:Metallurgical analysis, Tensile strength tester, Hardness tester, Altimeter, etc.

As per surface finish of Monel K-500 bars, we can supply them in the form of black surface, rough machined to bright surface or polish into bright surface,or peeled into bright surface

Please tell us the size and quantity of Hex bars ,Round bars, Rods, that you need, we will be glad to quote the best price for you

Except Monel K-500 bars,we can also produce Monel K-500 flanges,Monel K-500 plates,Monel K-500 fastener,Monel K-500 bolts,Monel K-500 pipe fittings,Monel K-500 pipes,Monel K-500 tubes,Monel K-500 springs.

One exception to be noted is that when the material is in an age hardened condition, K500 Monel Bush Hex Pipe has a greater tendency toward getting attacked by  stress induced corrosion cracking in some environments.In stagnant or slow moving sea water,  bio fouling may occur and the UNS N05500 Welded Pipe is attacked by pitting. However, pitting of K500 Alloy Seamless Pipe slows down after a fairly rapid initial attack.
 
This nickel based monel k500 pipe is spark resistant.  Up to a temperature of -200° F, the K500 Monel Welded Pipe exhibits non-magnetic behaviour. However, it is possible to develop a magnetic layer on the surface of the Monel DIN NR. 2.4375 Pipe during its processing. When elements Aluminium and copper have been selectively oxidized during the heating process, they leave a magnetic nickel rich film on the surface or outside the K500 Monel Welded Pipe. One can remove this nickel rich, magnetic film and restore the non-magnetic properties of the Monel Alloy K500 Round Pipe by either pickling or bright dipping in acid.