... – 300mmFlat: Thickness 16 – 300mm, width 60 – 520mmDelivery condition: EAF or ESR, Hot rolled or forged, Peeled or black surface, annealed or ... , Oil 44 - 50 HRC, AirHardness after tempering :Tempering °C400500550600HRC50464340Tempering °C400500550600HRC48444138 ESR hot work tool steel 1.2714 / L6