Chemical Sciences


An Erosion Resistant Steel for Underwater Components of Turbine Hydrogenerators and Process for Producing the Same


Chemical Sciences, Material Sciences

Sub Area:

Chemical technology

Focus Area:


Developing Agency:

CSIR-National Metallurgical Laboratory (NML), Jamshedpur

Technology Readiness Index:

Lab Validation

Website Link :

Brief Description

Description :

The multiphase steel comprising of martensite, austenite and bainite having high resistance against erosion due to silt impingement and cavitation can be employed as underwater components in hydroturbines. The alloy will have higher impact toughness values both at room temperature and sub-zero temperature. This alloy will have higher cavitation resistance compared to the cast 13%Cr-4%Ni stainless steel.

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