Rupal Metals stands out as a top manufacturer and supplier of Carbon Steel EN-9 Bars, delivering robust engineering steel solutions right from Delhi, India. This steel grade is celebrated for its medium carbon content and remarkable wear resistance, making it a popular choice for components that demand strength, toughness, and machinability. Rupal Metals offers EN-9 bars in a variety of sizes and finishes, all while adhering to stringent quality standards and catering to specific client needs. With precise processing and timely delivery, Rupal Metals supports a wide array of industries, including automotive, machinery, construction, and tool manufacturing, both in India and beyond.
Carbon Steel EN-9 is a medium carbon steel that contains around 0.50–0.60% carbon and 0.50–0.80% manganese, with iron making up the rest. It boasts a tensile strength ranging from 600 to 800 MPa, depending on the heat treatment applied. EN-9 can be flame or induction hardened to enhance its surface wear resistance. It offers good machinability, fair weldability (with preheating needed), and excellent toughness when normalized or tempered. This alloy is perfect for applications that require more strength than mild steel and moderate wear resistance, making it a go-to for general-purpose engineering components.
| Grade | 070M55 / EN-9 |
|---|---|
| Specification | BS 970 1991 |
| Round Bar Size | Diameter: 3-~800mm |
| Square Bar size | 4 to 100mm |
| Flat Bar Size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Hex Bar Size | 2-100mm A/F |
| Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Angle Bar Size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Section | 3.0 to 12.0mm thickness |
| Billet Size | 1/2″ to 495mm Diameter |
| Finish | Cold (bright) drawn, centreless ground,smooth turned, Rough Turned, Bright, peeled, hot rolled, hot rolled annealed, slit rolled edge, Polish, Grinding, Centreless Ground & Black |
| Tolerance | K9, K10, K11, K12, H8, H9, H10, H11, H12, H13, or as per clients’ requirements |
| Surface | Polished, Bright, Cold Drawn, Hot Rolled Pickled, Sand Blasting Finished, Hairline |
| Condition | Hardened & Tempered, Annealed |
| Technique | en9 Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rods |
| Processing | Bar cutting to 650mm |
| Form | en9 Welding Rod, Round, Round Rod, Rings, Hollow, Rod, T-Bar, Channel Bar, Flat Bar, Square, Blocks, Precision Ground Bar, Triangle, Rectangle, Hex (A/F), Threaded, Ingot, I/H Bar, Half Round Bar, Profiles, Billet, Forging etc. |
| EN9 / 070M55 Bars and Rods Conforms To NACE MR0175/ISO 15156 | |
| Grade | Cr | C | Ni | Si | S | Mn | P | Mo |
| EN – 9 | – | .50 – .60 | – | .05 – .35 | .040 MAX | .50 – .80 | .040 MAX | – |
| Heat Treatment | Condition Tons/SQ.inch | Tensile Stress RE MPA | RP0.2 MPA | A min on 5.65so | Impac | Hardness HB | Limited Ruling Section mm | |
| IZODFT.L.b | KCV Joules | |||||||
| Normalise | 45 | 700 | – | 12 | – | – | 201-255 | 63 |
| 39 | 600 | – | 13 | – | – | 170/223 | 250 | |
| R | 45/55 | 700/850 | 385 | 14 | – | – | 201/277 | 100 |
| S | 50/60 | 775/925 | 450 | 14 | – | – | 223/277 | 63 |
| T | 55/65 | 850/1000 | 555 | 12 | – | – | 248/302 | 19 |
| Standard | CS EN-9 |
| UNS | – |
| WERKSTOFF NR. | CK55 |
| BS | 070M55 |
| IS | C55 |
| JIS | – |
| EN | EN9 |
| SAE/AISI | 1055 |
Carbon Steel EN-9 is commonly used for manufacturing bolts, nuts, fasteners, and structural components in heavy-duty applications like automotive and construction industries.
EN-9 offers excellent tensile strength, wear resistance, and hardenability, making it suitable for components subjected to mechanical stresses and heavy-duty environments.
Yes, Carbon Steel EN-9 can be heat-treated to enhance its hardness and strength, making it versatile for various engineering applications.
Rupal Metals’ Carbon Steel EN-9 Bars find extensive use in the automotive, general engineering, and machinery sectors, thanks to their ideal mix of strength, toughness, and wear resistance. Common applications include shafts, spindles, axles, gears, keys, crankshafts, and tool holders. EN-9 is particularly well-suited for components that face moderate mechanical stress and wear, making it a favored option for moving machine parts and structural supports. Additionally, this alloy is utilized in hydraulic systems, construction tools, and forging dies, where precision and durability are essential.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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