Case-hardened carbon steel balls are manufactured from low carbon steel and heat treated to obtain a hardened outer layer with a tough inner core. They are widely used in industrial applications requiring economical wear resistance and good impact performance.
Also known as carburized carbon steel balls, low carbon steel balls combine surface hardness with core toughness for general mechanical applications.
Case-hardened carbon steel balls are manufactured from low carbon steel and typically processed through carburizing and heat treatment to create a hardened surface layer.
Compared with through-hardened high carbon steel balls, case-hardened carbon steel balls offer better impact resistance and a more economical solution for medium-duty industrial applications.

| Item | Specification |
| Material | Low Carbon Steel |
| International Designations | AISI 1010 / 1015, Q195 / Q235, SWRCH22A |
| Heat Treatment | Case-hardened / Carburized |
| Surface Hardness | Typically 58–65 HRC |
| Core Condition | Tough low carbon steel core |
| Size Range | 0.5 mm – 50 mm |
| Grade | G40 – G1000 |
| Density | 7.85 g/cm³ |
| Standard | ISO 3290 |
| Corrosion Resistance | Low (oil protection recommended) |
| Packing | Carton / Steel drum / Bulk bag / Custom |
| Condition | Hardened, cleaned and oiled |
| Delivery Time | Stock available for standard sizes or 30–35 days for production |
| Material Type | C (%) | Mn (%) | P (%) | S (%) |
| Low Carbon Steel | 0.08–0.18 | 0.30–0.60 | ≤0.040 | ≤0.050 |
Typical chemical composition range for low carbon steel materials used in case-hardened steel balls. Actual material may vary depending on international standards and application requirements.


