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Medium carbon steel with improved strength compared to low carbon grades. Offers a good balance of strength, ductility and machinability. Suitable for heat treatment and provides better wear resistance than lower carbon steels.
Widely used for shafts, axles, forgings, bolts, and general engineering components. Suitable for automotive parts and machinery requiring moderate strength and durability.
| C | Si | Mn | P (Max) | S (Max) |
|---|---|---|---|---|
| 0.22–0.28 | 0.10–0.35 | 0.60–0.90 | 0.040 | 0.050 |
Tensile Strength: 450 – 650 MPa
Yield Strength: ~ 300 – 400 MPa
Good strength with moderate ductility
Annealing: 850–900°C, furnace cooling.
Normalizing: 870–920°C, air cooling.
Hardening: 820–860°C, water or oil quenching.
Tempering: 400–650°C depending on required properties.
Supplied in As-rolled, Normalized or Annealed condition.
Can be supplied in Quenched & Tempered condition on request.
Round: Dia 20 – Dia 500 mm
Flat / Block: 50 – 500 mm
