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Low carbon manganese-chromium case-hardening steel with excellent core toughness and high surface hardness after carburizing. Exhibits good hardenability, wear resistance and fatigue strength. Provides a hard wear-resistant case combined with a tough and ductile core.
Widely used for gears, pinions, shafts, bushings, camshafts and transmission components. Suitable for automotive and heavy engineering applications requiring high surface wear resistance and core strength.
| C | Si | Mn | Cr | P (Max) | S (Max) |
|---|---|---|---|---|---|
| 0.17–0.22 | 0.15–0.40 | 1.10–1.40 | 1.00–1.30 | 0.035 | 0.035 |
Carburizing: 880–930°C.
Hardening: 820–860°C, oil quenching.
Tempering: 150–200°C.
Case hardness: 58–62 HRC (typical).
Ensures high surface hardness 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
