Mat.No. 1.1201, DIN Cm45, AISI 1045

Designation by Standards

Chemical Composition (in weight %)

Description CM45 is a medium carbon steel is used when greater strength and hardness is desired than in the “as rolled” condition. Extreme size accuracy, straightness and concentricity combine to minimize wear in high speed applications. Turned, ground and polished.  Applications Component parts for vechiles, shafts, bushings, crankshafts, connecting rods and parts for the machine building industry and steel for axes, knives, hammers, etc.  Physical properties (avarage values) at ambient temperature Modulus of elasticity [10³ x N/mm²]: 190-210  Density [g/cm³]: 7.84 Soft Annealing Heat to 650-700^oC, cool slowly. This will produce a maximum Brinell hardness of 207. Hardening Harden from a temperature of 820-850^oC, 830-860^oC followed by water or oil quenching. Normalizing Normalizing temperature (^oC): 840-880^oC. Tempering Tempering temperature: 550-680^oC. Forging Hot forming temperature: 1100-850^oC.  Machinability Machinability is good, rated at 80% that of the AISI 1112 alloy used as a 100% machining rated steel. Forms manufactured: Please see the Dimensional Sales Program. 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. Unless otherwise specified, registered trademarks are property of Metal Ravne company. Copyright 2015 by Metal Ravne. All rights reserved. Contact our Sales Office for more information.