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Ensinger PEI

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Crucible Steel Rex M2 High Speed Steel
Categories: Metal; Ferrous Metal; Tool Steel

Material Notes: Rex M2 is a tungsten-molybdenum general purpose high speed steel. It is suitable for a wide variety of cutting tools and is often used for metalforming tools such as punches and dies. Rex M2 is a good choice for cutting tools which require moderate feeds and speeds. It provides sufficient red hardness along with outstanding toughness for a high speed steel. For cold work applications, Rex M2 offers higher hardness and wear resistance than D2. Its high attainable hardness provides superior compressive strength for deformation resistance, reducing susceptibility to such problems as peening, denting and edge rollover. Its high tempering temperature and red hardness make it an excellent substrate for most surface treatments.

Information provided by Crucible Specialty Metals.

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Physical PropertiesOriginal ValueComments
Density 8.14 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 217 - 255Annealed
Hardness, Rockwell C 61Austenitizing Temperature- 1150°C; Tempering Temperature- 580°C
 64Austenitizing Temperature- 1190°C; Tempering Temperature- 550°C
Modulus of Elasticity 207 GPa
Charpy Impact 23.0 JAustenitizing Temperature- 1190°C; Tempering Temperature- 550°C
 28.0 JAustenitizing Temperature- 1150°C; Tempering Temperature- 580°C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 11.3 µm/m-°C
@Temperature 40.0 - 260 °C
 12.5 µm/m-°C
@Temperature 40.0 - 540 °C
Shrinkage -0.220 - -0.150 %
 
Component Elements PropertiesOriginal ValueComments
Carbon, C 0.85 %
Chromium, Cr 4.15 %
Iron, Fe 81.65 %As Remainder
Molybdenum, Mo 5.0 %
Tungsten, W 6.4 %
Vanadium, V 1.95 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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NCRUC014 / 16007

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