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              You are here: Home » Products » Series » Monel » Monel K500
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              Monel 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.

              Quantity:

              • Monel K500
              • RONSCO
              • Alloy1996MK500

              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. Plus, it can be further strengthened by cold working prior to precipitation hardening. The strength of this nickel steel alloy is maintained to 1200° F but stays ductile and tough down to temperatures of 400° F. Its melting range is 2400-2460° F.

              This nickel alloy is spark resistant and non-magnetic to -200° F. However, it is possible to develop a magnetic layer 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 outside. Pickling orbright dipping in acid can remove this magnetic film and restore the non-magnetic properties.

              In what forms is Monel K500?
              Bar
              Rod
              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 sear 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.
              What are the characteristics of Monel K500?

              .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
              Chemical Composition(%)

              NiCuAlTiCMnFeSSi
              63.0-70.0Remainder2.30-3.15.35-.85.25 max1.5 max2.0 max.01 max.50 max


              In what applications is Monel K-500 used?
              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
              Monel K-500 is readily fabricated by standard commercial procedures.
              Welding alloy K-500 is best accomplished by the gas-tungsten-arc welding process. It is recommended that Monel K-500 be annealed when it is welded and that any weldments be stress relieved prior to aging.
              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.

              Specifications

              BarRod
              AMS 4676AMS 4676


              Mechanical Properties
              Typical Room Temperature Tensile Properties of Annealed Material

              Product FormConditionTensile (ksi).2% Yield (ksi)Elongation %Hardness
              Rod & BarHot-Finished/Aged140-190100-15030-2027-38 HRC
              Rod & BarHot Finished/Annealed90-11040-6045-2575-90 HRB
              Rod & BarHot Finished/Annealed/Aged130-16585-12035-2024-35 HRC
              Rod & BarCold-Drawn/Aged135-18595-16030-1525-41 HRC
              Rod & BarCold-Drawn/Annealed/Aged130-19085-12030-2024-35 HRC
              Plateot-Finished/Aged140-180100-13530-2027-37 HRC
              SheetCold-Rolled/Annealed90-10540-6545-2585 HRB Max


              PH Stainless Steel
              17-4PH
              17-7PH
              15-5PH
              Contacts?
              Pones:+86-135-1749-7929
              / 0731-82250427
              Email:info@ronsteel.com
              Address: 1706, FuLi Building, NO.97, JiuCaiYuan Road, FuRong District, Changsha,Hunan, China

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