BEARING STEEL
NORM: EN ISO 683-17
APPLICATION:
Steel susceptible to the elements of general purpose such as: rolling bearings, rings, balls, shafts, needles less than 30 mm in size, working at the temperature similar to the room temperature and without the exposure to corrosive enviroment.
TECHNOLOGICAL INFORMATION:
Non-corrosion resistant steel
SEMI-FINISHED PRODUCTS:
Non-corrosion resistant steel
CHEMICAL COMPOSITION:
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | Al | O |
|---|---|---|---|---|---|---|---|---|---|---|
| 0,93-1,05 | 0,15-0,35 | 0,25-0,45 | Max 0,025 | Max 0,015 | 1,35- 1,60 | Max 0,10 | - | Max 0,30 | Max 0,050 | Max 0,0015 |
MECHANICAL PROPERTIES:
| Hardness after | Unit | Value | |
| Spheroidised annealing | HB | ≤207 | |
| Spheroidised annealing and cold plastic deformation (e.g. drawing)
1)pipes; 2)wires |
HB | ≤241
≤3211) ≤2072) |
|
| Quenching with 850 ºC in oil | HRC | 65 | |
| Quenching with 850 ºC in oil and tempering | 100 | HRC | 64 |
| 150 | HRC | 63 | |
| 200 | HRC | 62 | |
| 250 | HRC | 59 | |
PHYSICAL PROPERTIES:
| Property | Unit | Value |
| Density, ρ | g*cm-3 | 7.85 |
| Linear expansivity, α20-100ºC) | K-1 | 12,0*10-6 |
Technological treatment processes:
| Technological treatment processes | Possible application | Temperature, °C | ||
| Forming processes | Forging | + | 1100-850 | |
| Rolling | + | 1100-850 | ||
| Treatment process | Heat treatment | Quenching | + | 830-870 |
| Tempering | + | 150-170 | ||
| Precipitate strengthening | Supersaturation | – | – | |
| Ageing | – | – | ||
| Annealing | Normalising | + | 870-900 | |
| Soft annealing | + | 780-800 | ||
| Thermochemical treatment | Carburising | – | – | |
| Other | – | – | ||
INTERNATIONAL STEEL GRADES:
| ISO | EN | Russia | |||
| 100Cr6 | ISO 683-17:1999 | 100Cr6 | ISO 683-17:1999 | ShH15 | GOST 801-78 |
| US | Japan | China | |||
| 52100 | ASTM A 295-98 | ~SUJ 2 | JIS G 4805-1999 | GCr15 | GB 3203-82 |