Neil Metals, based in Kolkata, India, has made a name for itself as a reliable manufacturer and supplier of top-notch Alloy Steel Round Bars. These bars cater to a variety of industries, delivering precision-engineered steel products that stand out for their strength, durability, and impressive resistance to wear and heat. Each round bar is crafted to comply with both national and international standards, ensuring quality you can trust. Neil Metals also provides tailored solutions, making sure their products perform reliably in critical applications across sectors like automotive, construction, power generation, and heavy machinery. With a strong commitment to quality, technical know-how, and timely delivery, Neil Metals has become a go-to name for alloy steel solutions.
Alloy Steel Round Bars are made from carbon steel that’s been enhanced with alloying elements like chromium (up to 1.5%), molybdenum (up to 0.8%), nickel (up to 3.5%), manganese, and vanadium. These additions significantly boost the bars’ tensile strength (up to 1100 MPa), yield strength (up to 800 MPa), toughness, and resistance to fatigue and heat. They can also undergo heat treatments like quenching and tempering to further improve their mechanical properties. Renowned for their excellent machinability and performance under stress, these alloy steel round bars are perfect for load-bearing and high-temperature applications.
| Standard | ASTM A182, ASME SA182 |
|---|---|
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Round bar Size | Diameter: 3-~800mm |
| Hex Bar Size | 2-100mm A/F |
| Square Bar Size | 4 to 100mm |
| Angle Bar Size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Rectangular Bars 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) |
| Threaded Bar Billet Size | 1/2 to 495mm Diameter |
| Rectangular Size | 33 x 30mm to 295 x 1066mm |
| 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 |
| 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 | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Processing | Bar cutting to 650mm |
| Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Element | C | Cr | Mn | Mo | P | S | Si | Ni |
| F5 | 0.15 Max | 4.0-6.0 | 0.30-0.60 | 0.44-0.65 | 0.035 Max | 0.030 Max | 0.50 Max | 0.50 Max |
| F1 | 0.15 Max | 3.0-5.0 | 0.30-0.60 | 0.40-0.50 | 0.035 Max | 0.030 Max | 0.50 Max | 0.50 Max |
| F22 | 0.05-0.15 | 2.00-2.50 | 0.30-0.60 | 0.90-1.10 | 0.035 Max | 0.040 Max | 0.50 Max | – |
| F91 | 0.08-0.12 | 8.0-9.5 | 0.30-0.60 | 0.85-1.05 | 0.020 Max | 0.010 Max | 0.20-0.50 | 0.40 Max |
| F9 | 0.15 Max | 8.0-10.0 | 0.30-0.60 | 0.90- 1.10 | 0.030 Max | 0.030 Max | 0.50- 1.00 | – |
| F11 | 0.10-0.20 | 1.00-1.50 | 0.40-0.65 | 0.44-0.65 | 0.025 Max | 0.040 Max | 0.50-0.80 | – |
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
| F9 | 415 | 30 | 205 |
| F5 | 275 | 485 | 20 |
| US Bar | Metric | Japanese | Canadian/ASTM | ||||
| Diameter(Inch) | Bar Size | Diameter (millimeter) | Bar Size | Diameter (millimeter) | Bar Size | Diameter (millimeter2) | Bar Size |
| 0.250 | #2 | 5 | 5 | 6 | 6 | 100 | 10M |
| 0.375 | #3 | 5.5 | 5.5 | 10 | 10 | 200 | 15M |
| 0.500 | #4 | 6 | 6 | 13 | 13 | 300 | 20M |
| 0.625 | #5 | 7 | 7 | 16 | 16 | 500 | 25M |
| 0.750 | #6 | 8 | 8 | 19 | 19 | 700 | 30M |
| 0.875 | #7 | 9 | 9 | 22 | 22 | 1000 | 35M |
| 1.000 | #8 | 10 | 10 | 25 | 25 | 1500 | 45M |
| 1.125 | #9 | 11 | 11 | 29 | 29 | 2500 | 55M |
| 1.250 | #10 | 12 | 12 | 32 | 32 | ||
| 1.375 | #11 | 14 | 14 | 35 | 35 | ||
| 1.500 | #12 | 16 | 16 | 38 | 38 | ||
| 1.625 | #13 | 18 | 18 | 41 | 41 | ||
| 1.750 | #14 | 20 | 20 | 44 | 44 | ||
| 1.875 | #15 | 22 | 22 | 48 | 48 | ||
| 2.000 | #16 | 25 | 25 | 51 | 51 | ||
| 2.250 | #18 | 28 | 28 | 57 | 57 | ||
| 32 | 32 | ||||||
| 36 | 36 | ||||||
| 40 | 40 | ||||||
| 44 | 44 | ||||||
| 50 | 50 | ||||||
| Diameter or Width (mm) | Weight per meter | Sectional Area | Perimeter | |||
| Square (kg) | Round (kg) | Square (cm²) | Round (cm²) | Square (cm) | Round (cm) | |
| 5.0 | 0.20 | 0.15 | 0.25 | 0.20 | 2.0 | 1.57 |
| 5.5 | 0.24 | 0.19 | 0.30 | 0.24 | 2.2 | 1.78 |
| 6.0 | 0.28 | 0.22 | 0.36 | 0.28 | 2.4 | 1.88 |
| 7.0 | 0.38 | 0.30 | 0.49 | 0.38 | 2.8 | 2.20 |
| 8.0 | 0.50 | 0.39 | 0.64 | 0.50 | 3.2 | 2.51 |
| 9.0 | 0.64 | 0.50 | 0.81 | 0.64 | 3.6 | 2.83 |
| 10 | 0.73 | 0.63 | 1.00 | 0.79 | 4.0 | 3.14 |
| 11 | 0.95 | 0.75 | 1.21 | 0.95 | 4.4 | 3.46 |
| 12 | 1.13 | 0.89 | 1.44 | 1.13 | 4.8 | 3.77 |
| 14 | 1.54 | 1.21 | 1.96 | 1.54 | 5.6 | 4.40 |
| 16 | 2.01 | 1.58 | 2.56 | 2.01 | 6.4 | 5.03 |
| 18 | 2.54 | 2.00 | 3.24 | 2.54 | 7.2 | 5.65 |
| 20 | 3.14 | 2.47 | 4.00 | 3.14 | 8.0 | 6.28 |
| 22 | 3.80 | 2.98 | 4.84 | 3.80 | 8.8 | 6.91 |
| 25 | 4.91 | 3.85 | 6.25 | 4.91 | 10.0 | 7.85 |
| 28 | 6.15 | 4.83 | 7.84 | 6.16 | 11.2 | 8.80 |
| 32 | 8.04 | 6.31 | 10.24 | 8.04 | 12.8 | 10.05 |
| 36 | 10.17 | 7.99 | 12.96 | 10.18 | 14.4 | 11.31 |
| 40 | 12.56 | 9.86 | 16.00 | 12.57 | 16.0 | 12.57 |
| 45 | 15.90 | 12.49 | 20.25 | 15.90 | 18.0 | 14.14 |
| 50 | 19.62 | 15.41 | 25.00 | 19.64 | 20.0 | 15.71 |
| 56 | 24.62 | 19.34 | 31.36 | 24.63 | 22.4 | 17.59 |
| 63 | 31.16 | 24.47 | 36.69 | 31.17 | 25.2 | 19.79 |
| 71 | 39.57 | 31.08 | 50.41 | 39.59 | 28.4 | 22.31 |
| 80 | 50.24 | 39.46 | 64.00 | 50.27 | 32.0 | 25.13 |
Alloy Steel Round Bars are manufactured through processes like casting, hot rolling, cold drawing, and machining. These methods shape the steel into round bars, ensuring desired strength, finish, and dimensional accuracy.
Yes, Alloy Steel Round Bars are customizable. They can be manufactured in various sizes, lengths, alloy compositions, and finishes to meet specific mechanical, thermal, and corrosion resistance requirements for different applications.
You’ll find Alloy Steel Round Bars widely used in industries that demand high mechanical strength, toughness, and wear resistance. In the automotive sector, they’re crucial for making gears, shafts, crankshafts, and axles. The oil & gas and petrochemical industries rely on them for high-pressure fittings, valves, and components that face tough conditions. In construction and heavy equipment manufacturing, they’re used in structural elements and load-bearing parts. Moreover, power plants and industrial machinery depend on these bars for high-temperature, high-stress applications, ensuring they deliver long-lasting performance, safety, and durability even in the most demanding operational environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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