Aung Metals, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, is all about crafting top-notch Carbon Steel EN-31 R-100 Bars that are built for outstanding hardness, wear resistance, and durability. Thanks to their cutting-edge manufacturing techniques and rigorous quality checks, Aung Metals guarantees that each EN-31 R-100 Bar not only meets international standards but also delivers reliable performance in tough industrial settings. Renowned for their impressive tensile strength and precision, these bars are perfect for the automotive, tool-making, and engineering industries. Aung Metals offers precision-engineered steel solutions that blend toughness, machinability, and long-lasting performance, making them a go-to choice for high-stress and heavy-duty applications.
Carbon Steel EN-31 R-100 Bars are high-carbon, chromium-alloyed steels that contain about 1.00–1.10% carbon, 1.25–1.65% chromium, 0.30–0.60% manganese, along with trace amounts of phosphorus and sulfur. This unique blend gives them remarkable hardness, wear resistance, and strength. On the mechanical side, EN-31 R-100 steel boasts a tensile strength of around 900–1100 MPa and a yield strength of 600–800 MPa. The material is known for its excellent toughness, machinability, and fatigue resistance, and it can be hardened and tempered for precision tool and die applications.
| Grades | EN 8, EN 19, EN 24, EN 31 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Carbon Steel EN Series Round Bars | 3.0 – 50.8 mm, Over 50.8 – 300mm |
| Carbon Steel EN Series Rectangular Bars | 6.35 x 12.7mm,6.35 x 25.4mm,12.7 x 25.4mm |
| Carbon Steel EN Series Hex Bars | AF5.8mm–17mm |
| Carbon Steel EN Series Square Bars | AF2mm – 14mm, AF6.35mm,9.5mm,12.7mm, 15.98mm,19.0mm, 25.4mm |
| Carbon Steel EN Series Flat Bars | 1/2” to 10” in thickness range of 2mm to 150mm |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Finish | Bright, Polish & Black |
| Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc. |
| 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 |
| NAME OF MATERIAL | COMPOSITION IN % OF WEIGHT | THERMAL CONDUCTIVITY W/M-K | DENSITY KG/M^3 | MELTING POINT | |
| C | Mn Si Cr S P Mg | ||||
| En-31 IS-103 Crl | 1.5 | 0.52 0.22 1.3 0.05 0.05 – | 46.6 | 7810 | 1540 |
| BRITISH BS 970:1991 | 535A99 |
| BRITISH BS 970:1955 | EN31 |
| GERMAN DIN | 100CR6 |
| FRENCH AFNOR | 100C6 |
| SWEDISH SS | 2258 |
| AMERICAN SAE / AISI | 52100 |
They offer high hardness, excellent wear resistance, and durability, making them ideal for heavy-duty and high-performance applications.
They are commonly used in automotive, engineering, and tooling industries for components like gears, shafts, dies, and cutting tools.
Yes, we provide EN-31 R-100 Bars and Rods in various sizes and specifications tailored to meet specific application requirements.
You’ll find Carbon Steel EN-31 R-100 Bars widely used in industries that demand high hardness and wear resistance, like automotive, engineering, and tool manufacturing. They’re commonly found in cutting tools, dies, punches, shafts, bearings, gears, and precision machinery components. Additionally, they’re utilized in heavy-duty equipment and industrial tools where durability and dimensional stability under high stress are essential. EN-31 R-100 Bars deliver dependable performance in high-load and high-wear environments, making them ideal for crafting precision-engineered components that ensure long-lasting service and operational efficiency in challenging industrial applications.






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