🔩 Introduction
EN8 steel is a popular medium carbon steel grade known for its good tensile strength and machinability. It offers excellent performance in applications requiring strength, wear resistance, and moderate toughness. EN8 is used extensively across industries for producing shafts, axles, studs, keys, bolts, and machine parts.
At Steelmet Industries, we supply EN8 steel bars in a wide variety of shapes and conditions – hot rolled, peeled, bright drawn, and custom-profiled, ensuring dimensional accuracy and consistent quality. Whether your requirement is for small precision parts or heavy-duty industrial components, Steelmet is your trusted source.
📊 Chemical Composition of EN8 Steel (Typical)
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.36 – 0.44 |
| Manganese (Mn) | 0.60 – 1.00 |
| Silicon (Si) | 0.10 – 0.40 |
| Sulphur (S) | ≤ 0.050 |
| Phosphorus (P) | ≤ 0.050 |
Note: Clean steel options available with lower S & P upon request.
🧪 Mechanical Properties (Typical, in normalized condition)
| Property | Value |
|---|---|
| Tensile Strength | 550 – 700 MPa |
| Yield Strength | 280 – 450 MPa |
| Elongation (in 50 mm) | 13 – 16% |
| Hardness (BHN) | 180 – 230 |
| Impact Strength (Izod) | 40 – 55 J (approx) |
Heat-treated variants can offer higher tensile strength and hardness.
🧾 Equivalent Grades
| Standard | Grade |
|---|---|
| AISI/SAE | 1040 / 1045 |
| IS | 40C8 (IS 1570) |
| DIN/EN | C40 / C45 |
| JIS | S45C |
| BS | 080M40 |
⚙️ Common Applications
EN8 steel is widely used in:
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Transmission shafts and axles
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Automotive parts (gears, bolts, crankshafts)
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Agricultural and farm equipment
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General engineering components
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Machinery spindles, studs, and couplings
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Railway and mining parts
🔧 Machinability, Weldability & Heat Treatment
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Machinability: Excellent in normalized and cold drawn condition.
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Weldability: Fair – Preheat and post-weld heat treatment recommended.
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Heat Treatment: EN8 responds well to hardening, tempering, normalizing, and annealing.
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Hardening Range: Up to HRC 50 with oil quenching.
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Surface Finish: Bright drawn or ground finish available for high-precision requirements.
🔄 EN8 Steel Forms Supplied by Steelmet Industries
At Steelmet Industries, we supply EN8 steel bars in the following forms:
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Bright Steel Bars – Drawn / Peeled / Ground
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Hot Rolled Steel Bars
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Custom Special Profiles – Round Corner Squares, Half Rounds, Tapered Flats
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Shapes: Rounds, Squares, Flats, Hexagons, Special
Size Range:
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Rounds: 10 mm to 150 mm
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Flats/Squares: Width/height as per requirement
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Lengths: Custom cut lengths up to 5.5–6 meters or as required
Tolerances: As per IS/EN/AISI or custom tolerances.
🏭 Why Buy EN8 from Steelmet Industries?
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✅ Superior dimensional accuracy & finish
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✅ Custom sizes and shapes available
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✅ VD (Vacuum Degassed) and non-VD options
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✅ Fast delivery & flexible MOQs
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✅ Full traceability with test certificates
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✅ Access to NABL-certified labs for testing
We ensure consistency, traceability, and performance – making us a reliable partner for your steel needs.
📜 Documentation & Compliance
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TCs for Chemistry & Mechanical Properties
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Conformance to IS, DIN, EN, ASTM standards
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Dimensional Inspection Reports
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Clean steel (low S & P) variants upon request
📞 Get in Touch
Looking for reliable EN8 steel bar suppliers in India?
Steelmet Industries has you covered.
👉 Visit us at: https://www.steelmet.in
Let’s help you source the right grade, the right shape, at the right time.