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SMF 4040 is a copper-carbon bearing sintered steel structural material per JIS Z 2550:2000. Combined copper and carbon provide high strength and wear resistance for structural applications.
| Element | Content |
|---|---|
| Fe | Balance |
| Cu | 1–5% |
| C | 0.2–1.0% |
| Other | — |
| Property | Value |
|---|---|
| Density | 6.6 g/cm³ |
| Hardness | HRB 30 |
| Tensile Strength Ultimate | 400 MPa |
| Impact Force | 5 J/cm² |
Comparable Standards: ISO 5755 P2024Z / DIN SINT-C11.
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