Question

Which steel is used for manufacturing of metro and mono rail?

Answer 1

I assume that you are talking about the rails. Metro and monorail steel is called rail steel.

The basic requirement of rail steel is that it should be hard, wear resistant and crack resistant. This is achieved by steel chemistry and controlled cooling of the hot-rolled rails. The carbon content of rail steel can go up to a maximum of 0.82 % and manganese content up to a maximum of 1.7 %. However, most rails are made of steel containing 0.7% C and 1.0% Mn, which are known as C-Mn rail steel. From a strength perspective (ultimate tensile strength of 880 MPa or 90 Kg/ Sq mm), the C-Mn rail is popularly known as 90 UTS rail or Grade 880 rail. This grade of rail steel is also known as wear resistant grade.

Answer 2

The steel used for the manufacturing metro and mono rail is Manganese Steel.

Explanation:

• Manganese steel is also called as Hadfield steel.

• It is a steel alloy containing $12-14%$ percent manganese.

• Know that an increase in manganese in steel has a positive effect on corrosion resistance, partly due to the adsorption of manganese ions.
• Manganese steel is non-magnetic, making it ideal for use in electrical transformer assemblies and for industrial lifting magnets.