C45 STEEL
C45 for strength, hardness and machinability.
C45 is a medium carbon, non-alloy steel grade with approximately 0.45% carbon content. It offers good strength, hardness, and machinability. The material can be heat-treated (quenched and tempered) to enhance mechanical properties, making it suitable for parts requiring moderate tensile strength and wear resistance.
- Strength & Hardness: Good strength, moderate hardness, can be increased with quenching + tempering.
- Machinability: Good machinability in normalized or annealed condition.
- Weldability: Weldable with proper precautions (preheating & post-weld heat treatment recommended).
- Wear Resistance: Suitable for moderate wear applications.
C45 steel chemical composition.
| Element | Content (%) |
|---|---|
| C (Carbon) | 0.42 – 0.50 |
| Mn (Manganese) | 0.50 – 0.80 |
| Si (Silicon) | 0.15 – 0.35 |
| P (Phosphorus, max) | 0.040 |
| S (Sulfur, max) | 0.040 |
C45 available in the shapes you need.
Manjula Steel Industries is the largest stockiest and supplier of C45 tool steel in flat, square and round bar. We provide steel in all sizes as your requirements. C45 die steel is available in flat, square and round shape. Consult our team who will assist you for C45 steel query.
Strength and hardness.
| Property | Value (Typical) |
|---|---|
| Tensile Strength (MPa) | 570 – 700 |
| Yield Strength (MPa) | ≥ 355 |
| Elongation (%) | ≥ 16 |
| Hardness (HB, Brinell) | 170 – 210 |
| Impact Strength (ISO-V) | ≥ 35 J |
Controlled treatment for stable performance.
| Process | Temperature (°C) | Cooling Medium | Notes |
|---|---|---|---|
| Annealing | 650 – 700 | Furnace | Refines grain, softens steel |
| Normalizing | 840 – 880 | Air | Improves machinability & toughness |
| Hardening (Quench) | 820 – 860 | Water/Oil | Achieves high hardness |
| Tempering | 540 – 680 | Air | Adjusts hardness & toughness |
Built for demanding applications.
C45 for strength, hardness and machinability.
C45 medium carbon steel is an all-purpose engineering material that is a combination of strength, hardness, and good machinability. It provides good wear resistance, toughness, mixed with proper heat treatment, which has made it perfect in shafts, gears, axles, crankshafts, and general parts of machinery. It is highly adaptable and available in both forged and machined versions, and as such has found extensive industrial applications in the automotive, mechanical, and structural industries.