Maduka Metals, based in Abuja, Nigeria, stands out as a top manufacturer and supplier of high-quality Carbon Steel EN-1A Bars. These bars are celebrated for their outstanding machinability, durability, and precision, crafted to meet both national and international standards. This commitment ensures they perform consistently across a variety of industrial and engineering applications. Maduka Metals prioritizes quality, innovation, and customer satisfaction, delivering products that cater to the construction, manufacturing, automotive, and engineering sectors. With rigorous quality control and a reliable supply chain, each Carbon Steel EN-1A Bar boasts dependable mechanical properties, making them a go-to choice for precision-engineered and high-performance components.
Carbon Steel EN-1A Bars are low carbon steel products with about 0.07% to 0.15% carbon, along with added manganese and sulfur to enhance machinability. They provide good tensile strength, an excellent surface finish, and superior cutting performance, making them perfect for high-speed machining tasks. While they aren’t the best for heat treatment, they can be case-hardened to boost surface strength. With a great balance of strength and ductility, these bars are perfect for crafting precision components that require tight tolerances and smooth finishes.
| Grade | EN1A Round Bar |
|---|---|
| EN1A Square bar size | 4 to 100mm |
| Carbon Steel EN-1A Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| CS EN-1A Hex Bar size | 2-100mm A/F |
| EN1A Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Carbon Steel EN-1A Rectangles Size | 33 x 30mm to 295 x 1066mm |
| CS EN-1A Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| EN1A Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Carbon Steel EN-1A Section | 3.0 to 12.0mm thickness |
| CS EN-1A Round bar size | Diameter: 3-~800mm |
| EN1A Billet Size | 1/2″ to 495mm Diameter |
| Carbon Steel EN-1A Round Bar Standard Dimensions | Diameter / Height: |
| EN1A Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Carbon Steel EN-1A Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| CS EN-1A Technique | EN1A Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| EN1A Condition | Hardened & tempered, annealed |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Form | EN1A Round, Rod, T-Bar, Nickel Alloy Channel Bar, Precision Ground Bar, Nickel Alloy Flat Bar, Nickel Alloy Square Bar, Nickel Alloy Blocks, Nickel Alloy Round Rod, Nickel Alloy Rings, Nickel Alloy Hollow, Nickel Alloy Triangle, Rectangle, Hex (A/F), Nickel Alloy Threaded, Half Round Bar, Profiles, Nickel Alloy Billet, Nickel Alloy Ingot, I/H Bar, Forging etc. |
| Processing | Bar cutting to 650mm |
| Our EN1A Round bar conforms to NACE MR0175/ISO 15156 | |
230M07 (EN1A) Specification Chemical composition | |
|---|---|
Carbon | 0.15% max |
Manganese | 0.90-1.30% |
Silicon | 0.40% max |
Sulphur | 0.25-0.35% |
Phosphorus | 0.070 Max |
Chromium | – |
Molybdenum | – |
Nickel | – |
Lead | 0.15-0.35% (Where specified) |
Max Stress | 370-480 n/mm2 Min | dependent on ruling section |
Yield Stress | 240-400 n/mm2 Min | dependent on ruling section |
0.2% Proof Stress | 225-360 n/mm2 Min | dependent on ruling section |
Elongation | 6-10% Min | dependent on ruling section |
| STANDARD | UNS | DIN |
|---|---|---|
| EN1A Round Bar | – | – |
Carbon Steel EN-1A Bars are typically available in thicknesses ranging from 6 mm to 300 mm or more, depending on the manufacturer and specific requirements of the application.
Carbon Steel EN-1A bar has high machinability, tensile strength of 400-550 MPa, yield strength of 280 MPa, hardness of 130-180 HB, and excellent ductility for general engineering applications.
Carbon Steel EN-1A Bars are used for manufacturing precision components like gears, shafts, spindles, and fasteners due to their excellent machinability, surface finish, and suitability for high-speed machining applications.
In the manufacturing and engineering sectors, Carbon Steel EN-1A Bars are widely utilized. They’re ideal for creating components like bolts, studs, nuts, pins, shafts, and turned parts that need precise machining and smooth surfaces. In automotive and machinery applications, they’re commonly used for gears, fittings, and fasteners thanks to their excellent machinability. Plus, these bars are great for general fabrication, tools, and light mechanical components. Their versatility, ease of machining, and consistent performance make Carbon Steel EN-1A Bars a trusted choice for applications that demand high precision and productivity.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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