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Crucible Steel CPM® Rex® 54® (HS) High Speed Steel

Category Metal , Ferrous Metal , Carbon Steel , High Carbon Steel , Tool Steel
Manufacturer Crucible Steel
Trade Name CPM®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel CPM® Rex® 54® (HS) High Speed Steel.pdf
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Material Notes:
CPM Rex 54 is a cobalt-bearing high speed steel designed to offer an improvement in the red hardness of the popular M4 grade, while maintaining wear properties equivalent to M4. CPM Rex 54 has a chemical analysis very similar to M4 to which cobalt has been added for superior red hardness which allows for higher cutting speeds. It contains higher vanadium (4%) than either M35 (2%) or CPM Rex 45 (3%), and therefore offers improved wear resistance over these two grades, while maintaining a similar red hardness level.The CPM process results in a homogeneous microstructure with a finer, more uniform carbide distribution imparting superior dimensional stability, grindability and toughness when compared to steels produced by conventional processes. The CPM process also allows the design of more highly alloyed grades which cannot be produced by conventional steelmaking.Information provided by Crucible Specialty Metals.
Physical Properties Metric English Comments
Density 8.144 g/cc
0.2942 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 225 - 255
225 - 255
Annealed
Hardness, Rockwell C 57
57
Hardening Temperature- 2100°C; Tempering Temperature- 1150°C
67
67
Hardening Temperature- 2200°C; Tempering Temperature- 1000°C
Modulus of Elasticity 207 GPa
30000 ksi
Thermal Properties Metric English Comments
CTE, linear 11.5 µm/m-°C

@Temperature 20.0 - 260 °C
6.39 µin/in-°F

@Temperature 68.0 - 500 °F
12.1 µm/m-°C

@Temperature 20.0 - 540 °C
6.72 µin/in-°F

@Temperature 68.0 - 1000 °F
Component Elements Properties Metric English Comments
Carbon, C 1.48 %
1.48 %
Chromium, Cr 4.0 %
4.0 %
Cobalt, Co 5.0 %
5.0 %
Iron, Fe 75.05 %
75.05 %
As Remainder
Molybdenum, Mo 5.0 %
5.0 %
Sulfur, S 0.22 %
0.22 %
Tungsten, W 5.5 %
5.5 %
Vanadium, V 3.75 %
3.75 %
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