Aloke Alloys specializes exclusively in the manufacture of castings in all Stainless Steel and High Alloys such as:

Austenitic Stainless Steels

These are the most widely used and versatile family of Stainless Steels, which possess excellent & predictable levels of corrosion resistance in combination with excellent mechanical properties at both cryogenic and elevated temperatures.

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Martensitic Stainless Steels

These alloys have limited corrosion resistance but are popular due to their low cost and use as a strong, hard and fairly tough high temperature alloy.

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Precipitation Hardening Stainless Steels

These alloys fill an important niche by offering even greater strength, with better toughness and better corrosion resistance, than the Martensitic Stainless Steels. In addition, they also posses the advantage of being fabricable in the annealed and relatively soft state, with little dimensional change taking place in the final hardening cycle.

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Duplex & Super Duplex Stainless Steels

As the name suggests, Duplex Stainless Steels possess a mixture of both Austenite & Ferrite in their structure, resulting in an enviable combination of excellent corrosion resistance with very high strength levels at a moderate range of temperatures above room temperature.

Considered by many as the next generation of Stainless Steels, they can be designed to give a PREN value greater than 40, and are rapidly gaining in popularity due to their multifold advantages.

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Ferritic Stainless Steels

This family of Stainless Steels has very good corrosion & oxidation resistance, at a comparatively lower cost, but has very poor mechanical properties. Hence, their use is restricted to specific applications.

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High Cobalt Alloys

Cobalt Base Superalloys are used in applications where superior hot corrosion resistance coupled with thermal fatigue and wear resistance is required.

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High Nickel Alloys

Nickel Base alloys achieve an outstanding combination of temperature, strength and corrosion resistance in the most demanding applications including chemical, petrochemical and aerospace.

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Heat Resistant Cast Steels

Primarily used in applications where service temperatures exceed 650 C upto 1150 C, heat resistant cast steels exhibit higher rupture strength and creep properties compared to their wrought counterparts. These materials lie somewhere in-between what are usually considered stainless steels and superalloys.

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Superalloys

Superalloys are a group of nickel, iron-nickel and cobalt-base super-materials that are used at temperatures of 540 C and above. This family of alloys exhibits an unmatched combination of high strength at elevated temperatures, resistance to environmental attack and corrosion, excellent creep resistance and stress-rupture strength coupled with toughness, metallurgical stability, useful thermal expansion characteristics and excellent thermal fatigue.

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