Any material specifications OPTIMAX 
 Origin / Manufacturer Austria Bluff diameter range 

 Austria Bluff K460 apply high wear-resistant cold work tool steel and cold extrusion, tensile modulus, high hardness materials, Die! K460 Steel Austrian "Bluff" quality hot work die steel factory state: annealing HB225. Steel properties: This is high-carbon high-chromium steel (12%) slightly deformed steel; particularly suitable for air-cooled quenching, toughness sufficient. Uses: suitable for a variety of high-efficiency cutting tools, dies and punches, a variety of cutting and stamping tools, die rolling, drawing die, die, and deep cold mold. Quenching :1020-1040 ℃ complex shape parts, air-cooled, simple shape parts, cold air or oil, or 400-450 ℃ salt bath (200-250 ℃) classification quenching. Isothermal time :15-30 minutes quenched hardness HRC :61-63. Tempering: tempering time. 20mm thickness tempered holding time per hour, but not less than 2 hours. Air cooling. 
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