Mat.No. 1,1209, DIN Cm55, AISI 1055
Designation by Standards Mat. No. DIN EN AISI 1.1209 Cm55 - 1055 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.56 max. 0.40 0.75 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni) = max. 0.63 Description CM55 steel has a higher (0.55%) carbon content for greater strength than the lower carbon alloys. It is hardenable by heat treatment, quench and tempering. Applications Steel for springs, for quenched and tempered springs, for su...
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Обозначение по стандартам
Химический состав (в весовых%)
|0,56||Максимум. 0,40||0,75||Максимум. 0,40||Максимум. 0,10||Максимум. 0,40||-||-||(Cr + Mo + Ni) = макс. 0,63|
Описание CM55 steel has a higher (0.55%) carbon content for greater strength than the lower carbon alloys. It is hardenable by heat treatment, quench and tempering. Применение Steel for springs, for quenched and tempered springs, for surface hardened products like shafts, bushings, crankshafts, etc. Физические свойства (значения) курсы , при температуре окружающей среды Modulus of elasticity [103 х Н / мм 2]: 210 Density [g/cm3]: 7.85 Мягкий Отжиг Heat to 650-6000O C, cool slowly in furnace. Hardness after soft annealing is 229 HB. Нормализация Normalizing temperature: 825-865O С.Закалка Harden from a temperature of 840-870O С, 850-880 O C followed by water or oil quenching. Закалка Tempering from the quenched condition may be done at 540-680O C depending upon the strength desired. Ковка Hot forming temperature: 1100-850O С.Machinability Machinability is good, rated at 50% that of the AISI 1112 alloy used as a 100% machining rated steel. Устойчивость к коррозии This is a steel alloy and will rust if not protected. it is not corrosion resistant. Сварка CM55 steel is weldable by all of the welding methods. However with its higher carbon content it is important to use both pre-heat at 150 to 260O С и после тепла при 590 до 650 O C practice per an approved welding procedure. Холодная обработка In the annealed state the CM55 alloy is readily cold worked by conventional methods. Forms manufactured: Please see the Dimensional Sales Program. Отказ от ответственности 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.