Martensitic hardened stainless steel balls, they feature good hardness, corrosion resistance, wear and abrasion resistance. Balls are provided in the passivated condition.
Special bearings, anti-friction bearings, special pumps, recirculating balls, lighters, pens, automotive seatbelts & components.
| International Standard | |||
| AISI | DIN | GB | JIS |
| 420C | 1.4034 | 4Cr13 | - |
| 440C | 1.4125 | 9Cr18Mo | SUS440C |
| Chemical Composition | |||||||
| Type | %C | %Si | %Mn | %P | %S | %Cr | %Mo |
| 420 | 0.43 - 0.50 | 1.00 Max | 1.00 Max | 0.040 Max | 0.030 Max | 12.00 - 14.00 | - |
| 420C | 0.95 - 1.20 | 1.00 Max | 1.00 Max | 0.040 Max | 0.030 Max | 16.00 - 18.00 | 0.750 Max |
| Physical Property | |
| Corrosion Resistant | Excellent |
| Wear Resistant | Good |
| Magnetism | Yes |
| Mechanical Data | |
| Hardness | HRC 52 - 65 |
| Density | 7.70 - 7.75 g/m3 |
| Young's Modulus | 205 - 210 GPa |
| Tensile Strength | 250,000 - 290,000 psi |
| Basic Specification | |
| Diameter | 0.4mm - 50mm |
| Grade | G100 - G1000 |
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