What material is used for railway steel rails?

What material is used for railway steel rails?Let's popularize it for everyone.

Railway steel rails are mainly produced from high-manganese steel.

At present, the main materials are ordinary manganese-containing steel rails, copper-containing ordinary carbon steel rails, high-silicon copper-containing steel rails, copper rails, manganese rails, and silicon rails.

Q235 / 55Q light steel rails, 45MN, 71MN heavy steel rails, these two materials are commonly used now.