Description

Product:D2, 1.***9, XW**1, SKD*0 Key words:tool steel, die steel, specialty steel, steel bar, hotwork, coldwork, forged bar, alloy tool steel, flat bar, round bar, plastic mould steel, Typical Analysis: C : 1.***1.**0 Si : 0.*0 Max Mn: 0.*0 Max P : Max 0.**0 S : Max 0.**0 Cr: *1.****3.0 Mo: 0.***1.*0 V: 0.***1.*0 Advantages: Extremely high wear resistance. Excellent size stability in heat treatment. Deep hardening in air. Availability: Readily available. Application: Used for cold work tools requiring very long runs and close tolerance. D2 has high compressive strength and is used for blanking, stamping, and cold forming dies where emphasis is not on toughness. Some other applications are slitters, punches, thread rolling dies and trim dies. Machinability: Although readily machinable in the annealed condition D2 has a lower rating than most other tool steels. It is rated at *0% of a 1% carbon tool steel. It also has a low to medium grindability rating. Annealing: D2 should be surface protected duting annealing and slowly heated to ***0°to ***0°F. Hold at temperature for one hour per inch of thickness and then furnace cool **0°pre hour to ***0°F to below. The part may then be cooled in still air. The annealed hardness of D2 is **2 to **8 Brinell.