C50 Carbon Steel – Properties, Applications & Leading Suppliers in India
C50 carbon steel is a medium-high carbon steel grade widely used for manufacturing components that require high strength, toughness, and wear resistance. As part of the EN 10083-2 standard, C50 is well-known in the engineering, automotive, and machinery industries. This blog provides a comprehensive overview of C50 steel, including its properties, composition, uses, equivalents, and suppliers in India.
🔍 What is C50 Carbon Steel?
C50 is a non-alloy medium-carbon steel with a carbon content of approximately 0.50%. This grade offers a good combination of hardness and machinability, making it suitable for parts subjected to stress and fatigue. C50 is typically used in its quenched and tempered or normalized condition, providing improved mechanical performance.
Whether you’re a manufacturer or procurement manager looking for durable materials, C50 carbon steel is a versatile choice for high-strength components.
🧪 Chemical Composition of C50 Carbon Steel
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.47 – 0.55 |
| Manganese (Mn) | 0.60 – 0.90 |
| Silicon (Si) | ≤ 0.40 |
| Sulfur (S) | ≤ 0.045 |
| Phosphorus (P) | ≤ 0.045 |
| Iron (Fe) | Balance |
✅ Note: Controlled levels of sulfur and phosphorus enhance machinability.
⚙️ Mechanical Properties of C50 Steel
| Property | Typical Values (Normalized) |
|---|---|
| Tensile Strength | 600 – 800 MPa |
| Yield Strength | ~350 MPa |
| Elongation | 10 – 16% |
| Impact Toughness | > 30 J (in longitudinal direction) |
| Brinell Hardness (HB) | 170 – 220 |
👉 Values may vary with heat treatment conditions.
🔥 Heat Treatment of C50 Carbon Steel
C50 carbon steel responds well to standard heat treatment processes, including:
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Annealing (softens material for machining)
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Normalizing (refines grain structure and improves toughness)
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Hardening (by quenching at 820–860°C followed by oil or water quenching)
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Tempering (at 500–650°C to reduce brittleness after hardening)
🛠️ Key Features of C50 Carbon Steel
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Excellent hardness after heat treatment
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Good machinability in normalized condition
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Fair weldability (pre-heating recommended)
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High fatigue resistance
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Cost-effective compared to alloy steels
🧰 Applications of C50 Carbon Steel
C50 steel is used where mechanical stress, wear resistance, and strength are essential. Common applications include:
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Axles and Shafts
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Crankshafts
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Bolts and Screws
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Forged parts
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Heavy-duty gears
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Springs and levers
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Machinery parts for automotive and agriculture sectors
🔁 C50 Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| DIN | C50 |
| EN 10083-2 | C50E / C50R |
| AISI / SAE | 1050 |
| JIS (Japan) | S50C |
| BS (UK) | 060A52 |
| IS (India) | 50C8 |
📐 Available Forms of C50 Steel
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Hot Rolled Plates
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Cold Drawn Bars
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Forged Bars
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Rounds & Flats
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Bright Bars
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Blocks & Billets
💰 C50 Carbon Steel Price in India (Approx.)
| Product Type | Price Range (INR/kg) |
|---|---|
| C50 Hot Rolled Plates | ₹65 – ₹85 |
| C50 Bright Bars | ₹75 – ₹100 |
| Forged C50 Bars | ₹90 – ₹120 |
📝 Prices may vary based on thickness, treatment, order quantity, and location.
🧭 Top Suppliers of C50 Carbon Steel in India
Looking for C50 carbon steel suppliers with quality assurance and timely delivery? Here are some trusted names:
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Triton Alloys Inc. – Mumbai
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SAIL (Steel Authority of India Ltd.)
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Jindal Steel & Power
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Virwadia Steels
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Masteel India
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Bhansali Inc.
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Maharashtra Steel
✅ Always ask for mill test certificates (MTCs) and third-party inspection (TPI) reports for assurance.
📈 Why Choose C50 Steel for Your Project?
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Cost-effective medium-carbon steel for high