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440C stainless steel ball is a high carbon, high chromium martensitic stainless steel ball, known for its high hardness, excellent wear resistance and excellent corrosion resistance. The 440C stainless steel ball can achieve very high hardness after quenching and tempering treatment, which is ideal for precision bearings, valves, aerospace, tools and other demanding applications. It performs well in harsh environments and high load conditions, ensuring long-term reliability and durability.
| Material Composition | C | Si | Mn | P | S | Ni | Cr | Mo |
| 0.9 - 1 | ≤ 0.8 | ≤ 0.8 | ≤ 0.035 | ≤ 0.80 | ≤ 0.60 | 17.0 - 19.0 | ≤ 0.75 | |
| Technical Data | Hardness | HRC 58-65 | ||||||
| Tensile Strength | ≥ 750 MPa | |||||||
| Density | 7.75 g/cm³ | |||||||
| Corrosion Resistance | The 440C stainless steel ball exhibits excellent corrosion resistance in conventional atmospheric environments, fresh water and certain chemical media. | |||||||
| Grade | G10 - G1000 | |||||||
| Size Range | 1mm - 250mm | |||||||
