The hardening temperature of HSS tool is?

The hardening temperature of high-speed steel (HSS) tools typically ranges between 1200°C to 1300°C (2200°F to 2400°F). At this temperature, HSS undergoes a transformation that enhances its hardness and wear resistance. After hardening, HSS is usually tempered at a lower temperature to relieve internal stresses and improve toughness. The specific temperatures can vary depending on the exact composition of the HSS alloy used.