Learn about high speed steel (HSS), its benefits, advantages, properties, and more in this comprehensive overview.
PM M48 is a flexible high-speed steel with a unique combination of high wear resistance, high-impact toughness, and bend strength, which are the result of its fine grain size, small carbides, superior cleanliness, and the addition of tungsten, molybdenum, and cobalt. PM M48 offers higher cutting speeds, extended tool life, and good machinability compared to conventional high-speed steels like M2.
Other Known Names: ~1.3207, CPM REX 76®, ASP 2048, HS 10-5-3-9, SKH 57
Griggs Steel Color Code: White
Broaches, End Mills, Drills, Form Tools, Taps, and Cut-off Blades.
| Maximum | Typical | ||||||
|---|---|---|---|---|---|---|---|
| Carbon | Chromium | Tungsten | Molybdenum | Vanadium | Cobalt | Annealed | Tempered |
| C | Cr | W | Mo | V | Co | Hb | HrC |
| 1.5 | 3.75 | 9.75 | 5.25 | 3.1 | 8.5 | 310 | 68 |
| Density | Modulus Of Elasticity | Specific Gravity | Machinability |
|---|---|---|---|
| 0.298 lb/in3 (8256 kg/m3) | 31 x 106 psi (214 GPa) | 8.26 | 10-15% of a 1% carbon steel |
| Shape | Diameter |
|---|---|
| Round | .390″ |
| Round | .488″ |
| Round | .515″ |
| Round | .640″ |
| Round | .765″ |
| Round | .890″ |
| Round | 1.015″ |
| Round | 1.078″ |
| Round | 1.265″ |
| Round | 1.390″ |
| Round | 1.515″ |
| Round | 1.640″ |
| Round | 1.781″ |
| Round | 2.031″ |
| Round | 2.531″ |
| Round | 2.780″ |
| Round | 3.0625″ |
| Round | 3.5625″ |
| Round | 4.0625″ |
| Shape | Diameter |
|---|---|
| Plate | 1.030″ |
| Plate | 1.530″ |
| Shape | Diameter |
|---|---|
| Flats | 1.03125″ x 1.28125″ |
| Flats | 1.0625″ x 1.0625″ |
| Flats | 1.1875″ x 1.8125″ |
| Flats | 1.53125″ x 1.53125″ |
| Flats | 1.5625″ x 2.5625″ |
| Flats | 1.78125″ x 1.78125″ |
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