CarTech Micro-Melt Maxamet Steel

CarTech Micro-Melt Maxamet Steel

Steel name: CarTech Micro-Melt Maxamet
Diagram No.: 2317
Chemical composition in weight %: 2.15% C, 0.25% Si, 0.30% Mn, max. 0.070% S, 4.75% Cr, 6.00% V, 13.00% W, 10.00% Co
Steel group: PM high speed steels
Properties: CarTech Micro-Melt Maxamet alloy is a high alloy content super-hard high speed powder tool steel possessing properties intermediate between conventional high speed tool steels and cemented carbide. The high room temperature and hot hardness of this alloy allow it to be considered for use in applications where conventional tool steels do not hold up, such as in dry machining.
Applications: CarTech Micro-Melt Maxamet alloy may be considered for many types of tooling applications where either conventional high speed steels or cemented carbides are currently being used. Possible applications could include those where high speed steel is currently being used and an upgrade is desired but the switch to carbide is unattractive due to cost, tooling manufacture, toughness, or machine rigidity concerns; or applications where carbide is currently being used but is not cost-effective due to limited production runs or toughness/breakage problems.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: Preheat at 1500/1600°F (816/871°C) long enough to ensure a thorough soak. Austenitize at 1900/2225°F (1038/1218°C) for 3-5 minutes, then oil quench. Parts may also be salt quenched to 1000°F (538°C), and air cooled. Vacuum furnaces with positive pressure quench capability greater than 4 bars can be used, but resultant hardness may be approximately 1-2 points HRC lower than obtained with other heat treating methods. Parts should be allowed to cool to room temperature 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 1000/1100°F (538/593°C). For austenitizing temperatures of 2150°F (1177°C) or below, a minimum of a double temper is desired. For austenitizing temperatures above 2150°F (1177°C), a triple temper with an included refrigeration step of -100°F (-73°C) after the first temper is suggested. Alternatively, 3 to 4 tempers with no refrigeration may be used. 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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Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

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.