EN1A, also known as 230M07 or Free Cutting Mild Steel, is a low-carbon steel with added sulfur that offers excellent machinability. It is the go-to material for mass production on CNC machines and automatic lathes. At Steelmet Industries, we offer EN1A steel bars in bright and hot rolled forms with excellent surface finish, tight tolerances, and consistent quality.
📊 Chemical Composition of EN1A Steel
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.07 – 0.15 |
| Manganese (Mn) | 0.80 – 1.20 |
| Sulfur (S) | 0.20 – 0.30 |
| Phosphorus (P) | ≤ 0.07 |
| Iron (Fe) | Balance |
Note: EN1A is a free-cutting steel. The high sulfur content improves machinability.
🧪 Mechanical Properties (Typical in Cold Drawn Condition)
| Property | Value |
|---|---|
| Tensile Strength | 370 – 540 MPa |
| Yield Strength | 220 – 350 MPa |
| Elongation | ~15% |
| Hardness (BHN) | 130 – 170 |
| Machinability Rating | 100% (Excellent) |
🔁 Equivalent Grades of EN1A
| Standard | Equivalent Grade |
|---|---|
| EN | EN1A / 230M07 |
| AISI | 1213 / 12L13 |
| IS | 14420 (Steel Type 14C6S13) |
| DIN | 9SMn28 / 1.0715 |
| JIS | SUM22 |
| BS | EN1A / 230M07 |
⚙️ Applications of EN1A Steel
EN1A is widely used for high-speed machining of parts with moderate strength requirements, including:
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Automatic turned parts
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Precision machined components
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Spacers and bushes
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Shafts and studs
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Couplings and connectors
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Valve parts and nipples
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Furniture and hardware components
It is ideal for mass production, especially on CNCs and turret lathes where tight tolerances and fast cycle times are critical.
🔧 Machinability, Weldability & Heat Treatment
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Machinability: Excellent — best among all carbon steels
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Weldability: Limited due to high sulfur content; use EN1A lead-free (EN1A(L)) if welding is necessary
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Heat Treatment: Not typically hardened; not suited for quenching or tempering
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Case Hardening: Possible if core strength is not a concern
For applications requiring welding or better impact toughness, EN1A(L) or EN3B may be more suitable.
🧱 EN1A Steel Bars from Steelmet Industries
Steelmet Industries supplies EN1A in multiple profiles and conditions:
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Bright Bars: Drawn, Peeled, Ground – ideal for precision machining
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Hot Rolled Bars: For forgings and general use
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Shapes: Rounds, Squares, Flats, Hexagons, Round Corner Squares, Custom Profiles
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Size Range:
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Rounds: 10 mm to 75 mm
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Flats and Squares: As per requirement
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Tolerances: ISO H9, H10 or customer-specified
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Supply Condition: Bright drawn, annealed, hot rolled, or custom
We ensure low decarb, consistent chemistry, and tight tolerances for hassle-free machining and high productivity.
🏭 Why Choose Steelmet Industries for EN1A?
✅ Decades of experience in free-cutting steels
✅ Custom sizes and tolerances
✅ Fast dispatch from ready stock
✅ Traceable material with Test Certificate
✅ Ideal partner for OEMs, exporters, and contract manufacturers
✅ Competitive pricing and customer-first service
📜 Certifications & Compliance
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Supplied with Material Test Certificate (MTC)
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Complies with EN 10277, BS 970, IS 14420
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Optional: NABL-certified lab reports, UT/visual inspection, TPI
📞 Get a Quote for EN1A Steel
Need EN1A steel bars for machining or mass production?
📞 Contact Steelmet Industries today.
🔗 Website: https://www.steelmet.in
📩 Fill out the enquiry form to receive a quick quotation from our team.
