Bluff tool steel commonly used models are: M201 tool steel, M202 tool steel, M238 steel, M300 plastic mold steel, M310 tool steel, W302 die steel, K460 tool steel, K110 tool steel, K100 tool steel, K107 die steel, S600 speed Steel, S705 high-speed steel, S500 high-speed steel. Austria Bluff k110 carbon tool steel Chemical Composition C Mo Cr chromium molybdenum vanadium V Mn Mn Si Si 1.55 11.5 1.0 0.7 0.4 0.3 k110 mechanical properties of cold work die steel factory state: soft melted down to 250HB (highest) Annealing Specification: Annealing temperature 830 ~ 880 ℃, holding time 1 ~ 3H, slow cooling quenching, tempering specifications: quenching temperature 1020 ~ 1040 ℃, air, oil cooling, tempering temperature of 180 ~ 200 ℃, hardness 60 ~ 62HRC. K110 is a high-quality high chromium cold Assab die steel, high carbon, high chromium type ledeburite. The steel has good hardenability and good abrasion resistance. Because steel is rich in hard metal carbides, special added vanadium, molybdenum alloying elements, wrought by vacuum degassing process is made fine and uniform distribution of carbide particles, high temperature tempering after quenching, hardness and wear resistance is not reduced. Suitable for precision stamping dies, cold extrusion, drawing dies, die-punch, instrument BOM. {Page} k110 Steel Features (1) high carbon, high-chromium alloy steel, with high hardness and suitability of toughness and temper hardening effect, typical wind hard steel, is the best wear resistance The alloy tool steel. (2) add molybdenum, vanadium, it is both wear, deformation, impact resistance and other properties. (3) the secondary refining, cleanliness good, fine grains. This steel is high carbon, high chromium (12%) of steel, the factory by special heat treatment, machining particularly good performance, excellent hardenability. It has high toughness and wear resistance, dimensional change during heat treatment stable. M201 special steel chemical composition: C carbon Cr chromium Mn Mn Mo Si aluminum silicon S sulfur 0.4 2 1.5 0.2 0.3 0.003 M201 mold steel factory state: Pre-hardened to 980-1080N / (30-34HRC) Steel properties: M201 mold steel hardness uniform, due to low sulfur content more pitting Han Yun (sparks), easy to mirror polished, can be used as flame hardened, chrome plated and oxidation M201 mold steel use: all size plastic molds and can be used for tin, lead , zinc alloy die-casting mold base heat treatment of: M201 mold steel forging: 1.050 ℃ satin start playing until 850 ℃ stop, melted down with furnace annealing 710 -750 ℃ ??slow cooling protective gas furnace slow cooling body stress relief: 650 ℃ insulation 1- 2 hours followed by slow cooling quenching furnace: After the 870 -820 C ℃ heat retention through insulation or 200 -250 ℃ quenching oil quenching nitrate solution, cooled to 50 -70 ℃ immediate tempering