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Low carbon alloy case-hardening steel with excellent core toughness and high surface hardness after carburizing. Exhibits good wear resistance, fatigue strength, and impact resistance, making it suitable for heavily loaded components. Provides a tough core with a hard wear-resistant case.
Widely used for gears, pinions, shafts, camshafts, and transmission components. Suitable for automotive and engineering applications where high surface wear resistance and core toughness are required.
| C | Si | Mn | Cr | Mo | Ni | P (Max) | S (Max) |
|---|---|---|---|---|---|---|---|
| 0.17–0.23 | 0.10–0.35 | 0.60–1.00 | 0.80–1.10 | 0.10–0.25 | 1.00–1.50 | 0.035 | 0.035 |
Carburizing: 880–930°C.
Hardening: 820–850°C, oil quenching.
Tempering: 150–200°C for case hardening.
Case hardness: 58–62 HRC (typical).
Provides hard wear-resistant surface with tough core.
Supplied in Annealed or Normalized condition.
Final properties achieved after carburizing, hardening and tempering.
Round: Dia 20 – Dia 500 mm
Flat / Block: 50 – 500 mm
