CBS-50 NiL is a carburizing bearing and gear steel designed for service temperatures up to 600°F. It has high core fracture toughness properties compared to other bearing alloys. Because the CBS-50 NiL can be carburized, surface stresses are controlled to provide excellent rolling contact fatigue characteristics.
Class | Condition | Severity |
---|---|---|
1 | Freckles | A |
2 | White Spots | A |
3 | Radial Segregation | B |
4 | Ring Pattern | B |
Element | Min. | Max. |
---|---|---|
Carbon | 0.11 | 0.15 |
Manganese | 0.15 | 0.35 |
Silicon | 0.10 | 0.25 |
Phosphorus | — | 0.015 |
Sulfur | — | 0.010 |
Chromium | 4.00 | 4.25 |
Nickel | 3.20 | 3.60 |
Molybdenum | 4.00 | 4.50 |
Copper | — | 0.10 |
Vanadium | 1.13 | 1.33 |
Cobalt | — | 0.25 |
Tungsten | — | 0.15 |
VIM-VAR Melting Practice
Average grain size of ASTM No. 5 or finer
Maximum Total Depth of Decarburization, inch/pound units:
Nominal Diameter or Distance Between Parallel Sides Inches | Total Depth of Decarburation Inch |
---|---|
Up to 0.500, incl | 0.015 |
Over 0.500 to 1.000, incl | 0.030 |
Over 1.000 to 2.000, incl | 0.040 |
Over 2.000 to 3.000, incl | 0.050 |
Over 3.000 to 4.000, incl | 0.065 |
Over 4.000 to 5.000, incl | 0.095 |