1.2746 Cold Work Tool Steel

Mat.No. 1.2746, DIN 45NiCrMoV16-6 Designation by Standards Mat. No. DIN EN AISI 1.2746 45NiCrMoV16-6 - - Chemical Composition (in weight %) C Si Mn CrMo Ni VWOthers 0.450.250.701.500.794.000.50 - - Description Special cold work tool steel, air or oil hardenable with highest toughness. Applications Forging tools, dies of all sorts, shapes and sizes, hot forging and pressing tools for steel and metal. Moulds, bushings, piercers, etc. Physical properties (avarage values) at ambient temperature Modulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.86 Soft Annealing Heat to 610-850oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 295. Stress Relieving Stress relieving to remove machining stresses should be carried out by heating to approx. 650oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment. Hardening Harden from a temperature of 880-910oC followed by air or oil quenching or warm bath quenching 180-220oC. Hardness after quenching is 56 HRC. Tempering Tempering temperature: See the data bellow. Tempering Temperature (oC) vs. Hardness (HRC) 100oC200oC300oC400oC500oC550oC 565452504948 Tempering Diagram Click the image to enlarge the diagram. Forging Hot forming temperature: 1100-900oC. Machinability No data. Disclaimer The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available