EN2A Carbon Steel: Composition, Properties, Applications & Top Suppliers in India

EN2A carbon steel, also known as 070M20, is a mild steel grade under the BS970 standard. It is a low-carbon engineering steel that offers excellent machinability, good weldability, and moderate mechanical strength, making it ideal for turned components, studs, spindles, and light-duty shafts.

This in-depth blog will walk you through everything you need to know about EN2A steel, including its chemical composition, physical and mechanical properties, heat treatment, equivalents, typical uses, and trusted suppliers in India.

🔍 What is EN2A Carbon Steel?

EN2A is a plain carbon mild steel grade from the British BS970 standard (070M20). With its low carbon content (~0.20%) and minimal alloying elements, EN2A offers good machinability and surface finish, but limited strength and wear resistance.

EN2A is most suitable for machined parts and turned components that do not require high hardness or tensile strength.

🧪 Chemical Composition of EN2A Steel

✅ Low carbon content ensures excellent cold formability and weldability.

⚙️ Mechanical Properties of EN2A (Cold Drawn Condition)

💡 Not suitable for high-stress or wear-intensive applications due to its mild nature.

🔥 Heat Treatment of EN2A Steel

EN2A is typically supplied in the as-rolled, cold drawn, or bright drawn condition. It is not ideal for quenching or tempering due to its low carbon content, but is suitable for:

• Carburizing/Case Hardening: To achieve a hard surface while retaining a soft, ductile core

• Normalizing: 880–910°C, air-cooled

• Annealing: 680–710°C, slow cooling for improved machinability

• Welding: Excellent weldability with standard arc or MIG/TIG methods

🛠️ Key Features of EN2A Steel

• ✔️ Excellent machinability

• ✔️ Good weldability

• ✔️ Cold forming and bending suitability

• ✔️ Low cost and high availability

• ❌ Not ideal for heat-treated or high-stress components

🧰 Applications of EN2A Carbon Steel

EN2A is widely used for machined parts and general engineering components:

• 🔩 Bolts, nuts, studs, and screws

• 🔧 Light-duty axles and shafts

• 🧰 Bushings and spacers

• ⚙️ Precision turned parts

• 🏭 General machinery components

• 🛠 Fixtures and fasteners for low-stress environments

📌 Ideal for CNC machining, automatic lathes, and turned parts with fine surface finishes.

🔁 Equivalent Grades of EN2A Steel

🧠 EN2A is closely aligned with AISI 1020, making it an internationally recognized mild steel grade.

📦 Available Forms of EN2A Carbon Steel

EN2A carbon steel is commonly available in:

• Bright Round Bars

• Square & Hex Bars

• Cold Drawn Bars

• Peeled & Turned Bars

• Flats and Billets

• Custom-cut CNC blanks

🧽 Finishes: Bright Drawn, Turned, Ground, Peeled

💰 EN2A Carbon Steel Price in India (Indicative)

📌 Prices may vary based on size, finish, location, and quantity.

🧭 Top EN2A Carbon Steel Suppliers in India

Here are some reliable Indian suppliers of EN2A mild steel:

• Triton Alloys Inc., Mumbai

• Bright Steel Centre, Maharashtra

• Virwadia Steels, Chennai

• Mohan Steels, Delhi NCR

• Jindal Steel & Power

• Bhansali Inc., Gujarat

✅ Ask for mill test certificates (MTC), surface finish details, and dimensional tolerances.

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✅ Conclusion

EN2A carbon steel is a low-carbon, easily machinable mild steel grade suitable for a wide range of precision components, turned parts, and light-duty mechanical applications. While not heat-treatable for high hardness, it provides cost-efficiency, weldability, and great machinability, making it a go-to choice for manufacturers using CNC machines or automatic lathes.

Available in various cold-drawn and bright finishes, EN2A is supported by a strong supply chain across India, making it both economical and easy to source.

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