Specification 1.Hot work alloy tool steel. 2.Supplied in the annealed or quenched condition. 3.High temperature impact toughness and thermal fatigue strength. 4.High resistant to tempering,medium wear resistance. Shape:steel plate/flat bar/round bar Technology:Hot work / Forged/cold drawn Heat treatment:Annealed / Q+T Surface condition:Black/Peeling/Polishing/Machined Delivery condition:Hot rolled or forged, Peeled or black surface Test:UT 100% / SGS Certification:ISO/mill certificate