Silver High Carbon High Chromium Steel D 2, For Construction, 8 mm

Chemical Composition: ElementMinMaxCarbon, C1.551.75Manganese, Mn0.200.40Silicon, Si0.250.40Molybdenum, Mo0.500.70Chromium,Cr1112W0.400.60Vanadium, V0.100.50Thermal Properties: Properties-Conditions---T (ºC)TreatmentThermal expansion10.4 x 10-6/ºC20-100-Physical Properties: Physical propertiesMetricImperialDensity7.7 x 1000 kg/m30.278 lb/in3Melting point1421°C2590°FForging: HForging of D2 steels can be done from 1065ºC (1950ºF) down to 954ºC (1750ºF). Do not forge below 926ºC (1700ºF).Annealing: D2 is supplied in the annealed and machineable condition. Re-annealing will only be necessary if the steel has been forged or hardened by the toolmaker. To anneal, heat slowly and uniformly to 900°C. Soak for three to four hours and allow to cool in the furnace to room temperature. Re-heat to 800-1040°C and again soak for three to four hours. Allow to cool in the furnace to room temperature.Hardening: It is preferable to heat the tools in a controlled atmosphere. If this is not possible, pack hardening is recommended. A reducing atmosphere is desirable. Pre heat the D2 tool steel component to 750-800°C. and allow to soak at this temperature. The tools may then be brought up to 1000-1040°C for air cooling, or 980°C for oil quenching. Soak thoroughly at the temperature for thirty minutes per 25mm of ruling section, then cool or quench accordingly. It is important not to exceed 1020°C when heating for hardening.Application: Tool steel P20+S is ideally suited for the production of moulds where improved machinability is required. Typical applications include bolsters and injection moulds, die holders and zinc die casting dies. P20S is a versatile plastic mould tool steel with high tensile characteristics suitable for many other applications such as shafts and wear strips.A popular grade for toolmakers, D2 is used in a wide variety of tool making applications. Typical applications include blanking dies and punches for sheet in stainless steel, brass, copper, zinc and hard abrasive materials generally. Other application include deep drawing dies, cupping dies, forming dies, sheet metal forming rolls, shear blades for strip and sheet including flying shears, circular cutters for cold rolled strip,