High Carbon Chrome Alloy
General Information
This is an oil-hardened steel, which is universally used by the ball and roller bearing industry. The steel has high hardness and good resistance to deformation with excellent wear resistance. Usually vacuum degassed and uniformly through hardened in atmosphere controlled electric furnaces.
International Equivalents
AISI 52100, EN31, JIS G4805 SUJ2, Wks 1.3505
Material Specification
| Composition | |
|---|---|
| C | 0.95 - 1.10 % |
| Cr | 1.30 - 1.60 % |
| Mn | 0.25 % Max |
| Si | 0.15 - 0.30 % |
| P | 0.03 % Max |
| S | 0.025 % Max |
| Hardness | |
|---|---|
| HRc | 60 - 67 |
| Mechanical Properties | |
|---|---|
| Tensile Strength | 325,000 psi |
| Yield Strength | 295,000 psi |
| Density | 0.283 lbs/cu in |
| Size Range | |
|---|---|
| 0.635mm (0.025") to 101.6mm (4") | |
| Standard Grades Available |
|---|
| 5 |
| 10 |
| 25 |
| 100 |
| 500 |
Crushing Loads for Chrome Steel
| Diameter | Minimum Crushing Load | Diameter | Minimum Crushing Load | Diameter | Minimum Crushing Load | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| inch | mm | Kg | inch | mm | Kg | inch | mm | Kg | ||
| 1/8 | 3.175 | 666 | 31/64 | 12.303 | 7350 | 1 | 25.400 | 26600 | ||
| - | 3.500 | 792 | 1/2 | 12.700 | 7780 | 1 1/16 | 26.987 | 29600 | ||
| 5/32 | 3.969 | 990 | 17/32 | 13.494 | 8660 | 1 1/8 | 28.575 | 32800 | ||
| - | 4.000 | 1000 | 9/16 | 14.288 | 9590 | 1 3/16 | 30.162 | 36100 | ||
| - | 4.500 | 1240 | - | 15.000 | 10500 | 1 1/4 | 31.750 | 39500 | ||
| 3/16 | 4.762 | 1370 | 19/32 | 15.081 | 10600 | 1 5/16 | 33.337 | 43100 | ||
| - | 5.000 | 1490 | 5/8 | 15.875 | 11600 | 1 3/8 | 34.925 | 46800 | ||
| 7/32 | 5.556 | 1800 | 21/32 | 16.668 | 12600 | 1 7/16 | 36.512 | 50600 | ||
| 15/64 | 5.593 | 2020 | 11/16 | 17.462 | 13700 | 1 1/2 | 38.100 | 54600 | ||
| - | 6.000 | 2060 | 23/32 | 18.256 | 14800 | 1 5/8 | 41.275 | 62900 | ||
| 1/4 | 6.350 | 2280 | 3/4 | 19.050 | 16000 | 1 3/4 | 44.450 | 71700 | ||
| 17/64 | 6.746 | 2535 | 25/32 | 19.843 | 17200 | 1 7/8 | 47.625 | 81100 | ||
| 9/32 | 7.144 | 2810 | - | 20.000 | 17400 | 2 | 50.800 | 90900 | ||
| 5/16 | 7.938 | 3380 | 13/16 | 20.637 | 18400 | 2 3/16 | 55.562 | 106500 | ||
| 11/32 | 8.731 | 4000 | 27/32 | 21.431 | 19700 | 2 1/4 | 57.150 | 112000 | ||
| 3/8 | 9.525 | 4670 | 7/8 | 22.225 | 21000 | 2 5/16 | 58.735 | 116500 | ||
| - | 10.000 | 5090 | 29/32 | 23.018 | 22300 | 2 1/2 | 63.500 | 135000 | ||
| 13/32 | 10.318 | 5380 | 15/16 | 23.812 | 23700 | 2 3/4 | 69.850 | 159800 | ||
| 7/16 | 11.112 | 6140 | 31/32 | 24.606 | 25100 | 3 | 76.200 | 186500 | ||
| 15/32 | 11.906 | 6940 | - | 25.000 | 25900 | 4 | 101.600 | 309500 | ||
If you are unsure if this is the correct material for your application, please see our Material Comparison Chart.
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