CarTech Micro-Melt M62 Steel

CarTech Micro-Melt M62 Steel

Steel name: CarTech Micro-Melt M48
Diagram No.: 2316
Chemical composition in weight %: 1.30% C, 0.60% Si, 0.70% Mn, max. 0.050% S, 3.75% Cr, 10.50% Mo, 2.00% V, 6.25% W
Steel group: PM high speed steels
Properties: CarTech Micro-Melt M62 alloy is a high speed powder metal tool steel capable of reaching hardnesses in excess of HRC 67 without the use of cobalt. The alloy provides performance similar to AISI Type M42 in terms of hot hardness and heat treatment response. In addition, the alloy provides good toughness and excellent abrasion resistance.
Applications: Hobs, punches, form tools, end mills, milling cutters, thread roll dies, taps, broaches.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Preheat at 1500/1550ºF (816/843ºC) long enough to ensure a thorough soak. Austenitize at 2100/2200ºF (1149/1204ºC) for 3-10 minutes, then air, oil, or salt quench. For oil quenching, an interrupted quench is recommended. Parts should be oil quenched to approximately 1000ºF (538ºC), removed from the bath, and air cooled. Similarly, parts may be quenched into a salt bath held at 1000ºF (538ºC), equalized, and air cooled. Vacuum furnaces with positive pressure quench capability can be used, but resultant hardness may be approximately 1-2 points HRC lower than that obtained with other heat treating methods. Parts should be allowed to cool to below 150ºF (66ºC) prior to tempering.
Tempering: Tools should be tempered immediately after the completion of the quench. The tempering temperature may be varied according to the desired hardness, but is usually in the range 1000/1100ºF (538/593ºC). A triple temper is required to ensure the elimination of excessive retained austenite. Each temper should be 2 hours at temperature, with parts cooled to room temperature between tempers.
Diagram note: No data

Effect Tempering Temperature on Hardness

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Non-Metallic Inclusions in Steel
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Disclaimer: The material data is a central depository of information based on global actual tests and calculated software data that is available to the public for a fee. 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.