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Crucible Steel Rex M2 High Speed Steel

Category Metal , Ferrous Metal , Tool Steel
Manufacturer Crucible Steel
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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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.
Physical Properties Metric English Comments
Density 8.14 g/cc
0.294 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 217 - 255
217 - 255
Annealed
Hardness, Rockwell C 61
61
Austenitizing Temperature- 1150°C; Tempering Temperature- 580°C
64
64
Austenitizing Temperature- 1190°C; Tempering Temperature- 550°C
Modulus of Elasticity 207 GPa
30000 ksi
Charpy Impact 23.0 J
17.0 ft-lb
Austenitizing Temperature- 1190°C; Tempering Temperature- 550°C
28.0 J
20.7 ft-lb
Austenitizing Temperature- 1150°C; Tempering Temperature- 580°C
Thermal Properties Metric English Comments
CTE, linear 11.3 µm/m-°C

@Temperature 40.0 - 260 °C
6.28 µin/in-°F

@Temperature 104 - 500 °F
12.5 µm/m-°C

@Temperature 40.0 - 540 °C
6.94 µin/in-°F

@Temperature 104 - 1000 °F
Shrinkage -0.220 - -0.150 %
-0.220 - -0.150 %
Component Elements Properties Metric English Comments
Carbon, C 0.85 %
0.85 %
Chromium, Cr 4.15 %
4.15 %
Iron, Fe 81.65 %
81.65 %
As Remainder
Molybdenum, Mo 5.0 %
5.0 %
Tungsten, W 6.4 %
6.4 %
Vanadium, V 1.95 %
1.95 %
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