Monel

Monel 400 es una aleacion de niquel-cobre con excelente resistencia a la corrosion en una variedad de medios.

Monel 400 es una aleacion de niquel-cobre resistente a la corrosion en muchos entornos. Consiste en dos solidos cristalinos que forman un nuevo solido.

Una aleacion de niquel-cobre con alta resistencia y excelente resistencia a la corrosion en una variedad de ambientes acidos y alcalinos, especialmente para condiciones reductoras. Tambien tiene buena ductilidad y conductividad termica.

Si bien es un metal muy util, tiene un costo prohibitivo en la mayoria de las aplicaciones. Monel 400 cuesta de 5 a 10 veces mas que el niquel o el cobre normales.

Monel 400 es una de las pocas aleaciones que conserva la resistencia a temperaturas bajo cero, asi que utilicela en estas situaciones.

MONEL K500 es una aleacion de niquel-cobre que se puede endurecer por precipitacion mediante la adicion de aluminio y titanio.

MONEL K500 conserva las excelentes propiedades de resistencia a la corrosion de 400, con mayor resistencia y dureza despues del endurecimiento por precipitacion en comparacion con 400.

La aleacion K500 tiene aproximadamente tres (3) veces el limite elastico y el doble de la resistencia a la traccion de 400 en comparacion con 400. MONEL K500 se puede fortalecer aun mas mediante el trabajo en frio antes del endurecimiento por precipitacion.

Las aplicaciones tipicas de la alta resistencia y resistencia a la corrosion de MONEL K500 son ejes de bombas, impulsores, ejes de helices, componentes de valvulas para barcos y torres de perforacion en alta mar, pernos, collares de pozos de petroleo y componentes de instrumentacion para la produccion de petroleo y gas.

El material Monel K500 tiene excelentes propiedades mecanicas. Tienen una resistencia a la traccion minima de 140Ksi y un limite elastico minimo de 100Ksi. La aleacion tiene una dureza de 280 Rockwell y se puede estirar facilmente en un 29 %.

MONEL K500 no es magnetico. MONEL K500 debe recocerse cuando se suelda, luego la soldadura debe liberarse de la tension antes del envejecimiento.

Monel 400 is an alloy of nickel and copper, typically formulated at about 67% nickel and 33% copper.

Alloy 400’s alkali resistance makes it ideal for deployment in highly acidic environments such as salt water, sulfuric acid or hydrofluoric acid.

Monel k500 round bar is an age hardening nickel base alloy. This nickel-based Monel UNS No5500 triangular bar also contains some elemental copper added to its alloy. Copper is known to have good corrosion resistance when added to Monel UNS 5500 spring steel bar, similar to alloy grade 400.

Typical applications for Monel K500 grade rods include those tasks that take advantage of the alloy’s high tensile strength and corrosion resistance. For example, Monel B865 K500 forged bar can be used to make impellers, propeller shafts, pump shafts.

Monel K500 steel bars are particularly suitable for centrifugal pumps in the marine industry. This is due to the properties of Monel N05500 hot rolled bar, namely high tensile strength and low corrosion rate in high velocity seawater.

2.4375 Monel K500 round bar is non-magnetic, as an alloy, Monel K500 ASTM B865 hexagonal bar exhibits excellent mechanical properties over a temperature range from sub-zero settings to 480C. Monel ASTM B865 hollow bars require annealing when welded, and weldments should be stress relieved to the alloy prior to aging.

Alloy 400/Monel 400 comes directly from refined ore bodies in Canada, and with a copper content of approximately 30 wt%, it provides a lower cost alternative to commercially pure nickel, but still retains a very similar characteristics.

MONEL 400 solid solution alloy can be hardened by cold work, but can be hot worked or cold worked, then annealed into complex structures and welded using an appropriate welding process.

Monel 400 is used in process vessels, heat exchanger piping, and gasoline and potable water storage tanks in the marine sector. The non-sparking properties of this alloy make it suitable for high-risk situations in the explosives industry, rockets and pulp and paper industries.

Overcoming the impact of downtime caused by corrosion, stress and extreme temperatures, and the cost impact of failure rates and safety has driven the industry to look for materials like Monel 400, which provide increased reliability in harsh conditions.

As a corrosion resistant alloy, Monel 400 can withstand high temperature steam environments and fast flowing brackish/seawater, while maintaining excellent resistance to stress corrosion cracking in most fresh waters.

Monel K-500 combines the excellent corrosion resistance of Monel 400 with the added benefits of higher strength and hardness. Performance can be improved by adding aluminum and titanium to the nickel-copper matrix and by heating under controlled conditions to precipitate submicroscopic particles of Ni 3 (Ti, Al) throughout the matrix.

The corrosion resistance of Monel K-500 is basically the same as Alloy 400, except that in the age hardened condition, Alloy K-500 has a greater tendency to stress corrosion cracking in certain environments. Monel K-500 has been found to be resistant to sour gas environments.

Reworking of Alloy K-500 is best done while the material is in the annealed or hot worked and quenched condition. However, age hardened materials can be finished to close tolerances and finish. Therefore, the recommended practice is to machine slightly oversize, age harden, and then finish to size.

Alloy K500 is refined by Electroslag Refining (ESR), ensuring the cleanest and highest quality material. This increased alloy purity limits the potential for hard non-metallic inclusions that can increase machining difficulty, machining time and ultimately lead to part failure. It also has low permeability and is non-magnetic at temperatures as low as -150¡ãF (-101¡ãC).

MONEL K-500 alloy has corrosion resistance comparable to 400, but has higher mechanical strength and hardness. Has good thermal corrosion resistance and long-term tissue stability. It is mainly used in the manufacture of turbine blades and gas turbine blades with a working temperature below 750¡ãC on aero-engines, and in the manufacture of fasteners and springs on ships; pumps and valve parts on chemical equipment, and scraping on paper-making equipment. Blades etc.

Nimonic 80 a (Alloy 80A) is one of the most popular superalloys specified for gas turbines. Nimonic 80A fasteners are often specified because of their ability to withstand very high temperatures. This makes Nimonic bolts and nuts ideal for use in aircraft parts and custom-designed gas turbine components, from turbine blade mounting to exhaust nozzles on jet engines, where Nimonic fasteners are exposed to very high levels of pressure and heat.

Monel 400 is resistant to steam and sea water as well as highly corrosive solutions such as sulfuric, hydrochloric and hydrofluoric acids after degassing. It has excellent solderability and can withstand very high pressure and weight. The alloy has excellent mechanical properties at sub-zero temperatures, with a melting point of 2370¡ã – 2460¡ã F, and the product can be used at temperatures up to 1000¡ã C.

Alloy 400 is a solid solution of gold that can only be hardened by cold work.