Does H13 ESR have the same chemical composition as H13 steel?

ESR only represents the smelting process. Therefore, the chemical composition of H13 ESR is exactly the same as that of H13 steel.

After undergoing electroslag remelting, H13 ESR exhibits a further reduction in harmful impurities and non-metallic inclusions compared to H13 steel, resulting in a more uniform and denser composition and microstructure. Therefore, H13 ESR can be considered a “purified” and “strengthened” version of H13.