Thabiso Steel stands out as a reliable manufacturer and supplier of Carbon Steel EN-31 Bars right in Cape Town, South Africa. We take pride in offering top-notch alloy steel bars that are crafted for precision engineering and heavy-duty industrial tasks. Our EN-31 Bars are celebrated for their exceptional hardness, wear resistance, and strength, making them perfect for creating dies, punches, bearings, shafts, and other components that face high stress. At Thabiso Steel, we prioritize precision manufacturing, rigorous quality control, and consistent dimensional accuracy, ensuring that our bars deliver dependable performance and a long lifespan even in tough conditions.
Our Carbon Steel EN-31 Bars are crafted from high-carbon, low-alloy steel, with carefully controlled levels of carbon, manganese, and chromium. These bars boast impressive mechanical properties, including high hardness after heat treatment, tensile strength ranging from 750 to 900 MPa, and outstanding wear resistance. Thanks to their fine-grain microstructure, they offer durability, toughness, and reliable performance, all while being easy to machine and suitable for processes like quenching and tempering.
| Grade | En31 |
|---|---|
| Specification | 100Cr6, AISI SAE E52100, 100Cr6, 2258, 100C6 |
| Round bar size | Diameter: 3-~800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Square bar size | 4 to 100mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Section | 3.0 to 12.0mm thickness |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2″ to 495mm Diameter |
| Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Finish | Cold (bright) drawn, centreless ground,smooth turned, peeled, slit rolled edge, hot rolled, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Condition | Hardened & tempered, annealed |
| Technique | en31 Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Processing | Bar cutting to 650mm |
| Form | en31 Welding Rod, Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Our stockyad location for fast delivery across India | Surendranagar, Rajkot, Ranjangaon, Indore, Ahmedabad, Bhosari, Surat, Baroda, Chennai, Chakan, Hyderabad, Ahmednagar, Ajmer, Kolhapur, Thane, Belgaum, Kadi, Aurangabad, Pune, Hubli Mumbai, Nagpur, Jaipur, Nashik, Navi Mumbai |
| Carbon | 0.95 / 1.10 |
| Manganese | 0.40 / 0.70 |
| Silicon | 0.10 / 0.35 |
| Sulfur | Max 0.050 |
| Phosphorus | Max 0.040 |
| Chromium | 1.20 – 1.60 |
| Thermal Conductivity at °C | 20 | 350 | 700 |
| W/(m*K) | 44.5 | 45.0 | 46.0 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
|---|---|---|---|
| Cold Drawn and Polish | 3.00 – 75.00 | 1/8″ – 3.00″ | h8-h9-h10-h11 |
| Cold Drawn and Ground | 10.00 – 75.00 | 5/6″ – 2.50″ | h8-h9-h10-h11 |
| Peeled and Polished | 40.00 – 150.00 | 1.50″ – 6.00″ | h11, h11-DIN 1013 |
| Peeled and Ground | 20.00 – 50.00 | 3/4″ – 2.00″ | h9-h10-h11 |
| Cut to size on request (tolerance +2/-0 mm). Standard lengths of en31 Bars 2000 mm up to 6000 mm available | |||
| 5.0 | 45.0 |
| 6.0 | 50.0 |
| 7.0 | 55.0 |
| 8.0 | 60.0 |
| 9.0 | 65.0 |
| 10.0 | 70.0 |
| 12.0 | 75.0 |
| 16.0 | 80.0 |
| 20.0 | 90.0 |
| 25.0 | 100.0 |
| 30.0 | 130.0 |
| 35.0 | 160.0 |
| 40.0 | 200.0 |
You’ll find Carbon Steel EN-31 Bars widely utilized across various sectors, including automotive, tool-making, heavy machinery, and engineering. They’re particularly well-suited for producing precision components such as dies, punches, bearings, shafts, and gears that demand high hardness and wear resistance. The blend of strength, toughness, and durability makes EN-31 Bars the go-to choice for industries looking for dependable and high-performance alloy steel solutions for their challenging applications.
ThabisoSteel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Cape Town, South Africa.
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