Nickel and its alloys


Nickel -  Highly used as alloying element in steels. As pure metal it has good resistance to corrosion in various media. They are used as electronic components and in chemical industries and in the manufacture of food equipment.

MONEL 400 – It has great resistance to sea water and finds great structural applications in marine environments. For this reason it is indicated in the manufacture of propellers, propeller shafts, pumps, valves, screws and oil equipment.

MONEL K500 – This material is precipitated hardened by the addition of Al and Ti to the M 400. It exhibits high mechanical strength when compared to the Monel 400. Typical applications for the MK500 are bolts, nuts, pumps and valve components for processing in the paper and pulp industry.

Inconel 600 – NI-Cr alloy, is used for applications where high resistance to corrosion and heating is desired. It is most suitable for high temperatures when the medium is poorly corrosive. This alloy does not undergo heat treatment to increase its mechanical properties. They are used in heaters, condensers, evaporator tubes, ovens, etc..

Inconel 601 – Al-Cr alloy with Al addition contributes to excellent resistance to oxidation and other forms of high temperature corrosion. It also contributes to an increase in mechanical properties at high temperatures. It is used for industrial furnaces, heat treatment equipment, petrochemical industry etc..

Inconel 625 – Ni-Cr-Mo alloy with addition of Nb which acts with Mo to toughen the alloy and thus provide high strength without heat treatment. Resistant to chemical corrosion at high temperatures. It is one of the most used special alloys in the oil industry. Other applications: components for gas turbine, nuclear power plant, aerospace, furnace constructions, seawater applications, etc..

Inconel X-750 – Ni-Cr alloy similar to Inconel 600 with addition of Al and Ti which makes it hardenable by precipitation. The alloy has good resistance to corrosion and oxidation together with high tensile strength and creep in temperatures up to about 700°C. Used for manufacturing springs and screws for high temperatures the excellent resistance relaxation is useful for high temperature springs and bolts.

Inconel 718 – Ni-Cr alloy is a material with excellent oxidation resistance at high temperatures associated with mechanical resistance. Hardenable by heat treatment of precipitation. Used for the manufacture of springs, in the component of furnaces, anvils, nuts, screws and prisoners.

Incoloy 800 – Ni-Fe-Cr alloy with high resistance to heating and mechanical resistance and corrosion. It is a material widely used for the construction of equipment that must withstand corrosion and temperature, oxidation, carburizing.

Incoloy 800HT – Ni-Fe-Cr alloy, basically the same composition as Incoloy 800, but with high limit creep resistance due to the addition of Al and Ti and a high control of Carbon. Used in the manufacture of ovens, in the chemical and petrochemical industry and turbines.

Incoloy 825 - Ni-Fe-Cr alloy with addition of Mo, Cu and Ti and is designed to provide exceptional resistance to various corrosive environments. Applications include chemical processing equipment, Oil & Gas, acid production, etc.

Hastelloy B2 - Ni alloy with high Mo, 28%, and low Cr, 1%, which gives the material a great performance in corrosive environments It also has high resistance to corrosion under tension in the ZTA that makes it a material indicated in the construction of equipment of chemical processes requiring soldering. 

Hastelloy C22– Versatile Ni-Cr-Mo alloy with better overall corrosion resistance than other Ni-Cr-Mo alloys available today, including Hastelloy C-276. Alloy has excellent resistance to corrosion by pitting, crack corrosion and corrosion under tension. It uses a wide range of chemical processes.

Hastelloy C-276 - Ni-Mo-Cr alloy, is known for its excellent corrosion resistance over a wide range of harsh media. With its low Carbon content contained, it increases the intergranular resistance during the welding process. It is used in harsh environments found in chemical processes.



Madiba Metals operates in the market of importation and distribution of special alloys, advisement of application engineering projects with special materials, offering solutions in metallic materials for various applications.

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