Alloy steel round bars and rods are versatile materials used in a variety of applications across various industries. These products are widely used in manufacturing machinery, equipment, and components that require high strength and corrosion resistance. At Om Steel, we offer a wide range of alloy steel round bars and rods in different sizes, shapes, and grades to meet the diverse needs of our customers.
Our alloy steel round bars and rods are made from high-quality raw materials and are available in various grades, including AISI 4130, AISI 4140, AISI 4340, AISI 8620, and more. These materials have excellent mechanical properties, such as high tensile strength, good ductility, and toughness, making them suitable for high-stress applications.
We offer a wide range of alloy steel round bars and rods, including hexagonal bars, square bars, flat bars, and more. Our products are available in different surface finishes and can be customized to meet specific requirements.
Alloy steel Round Bars and Rods
Specifications
| Specifications | ASTM A182, ASME SA182 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Range | 5mm to 500mm Dia in 100mm to 6000mm Length |
| Diameter | 10 mm To 200 mm |
| Thickness | 0.5mm to 500mm Diameter |
| High Speed Steel (HSS), HCHCR & OHNS in Grade | M2, M3, M35, M42, T-1, T-4, T-15, T-42, D2, D3, H11, H13, OHNS-01 & EN52 |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1000 mm Long To 6000 mm Long |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
Hot Rolled Alloy Steel
Round Bars Sizes
| Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
|---|---|---|---|
| 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 |
| Cold Drawn and Polish | 3.00 – 75.00 | 1/8″ – 3.00″ | h8-h9-h10-h11 |
Alloy Steel Round Bar
Dimensions
| Diameter or Width (mm) | Weight per meter Square (kg) |
Weight per meter Round (kg) |
Sectional Area Square (cm²) |
Sectional Area Round (cm²) |
Perimeter Square (cm) |
Perimeter Round (cm) |
|---|---|---|---|---|---|---|
| 5 | 0.2 | 0.15 | 0.25 | 0.2 | 2 | 1.57 |
| 5.5 | 0.24 | 0.19 | 0.3 | 0.24 | 2.2 | 1.78 |
| 6 | 0.28 | 0.22 | 0.36 | 0.28 | 2.4 | 1.88 |
| 7 | 0.38 | 0.3 | 0.49 | 0.38 | 2.8 | 2.2 |
| 8 | 0.5 | 0.39 | 0.64 | 0.5 | 3.2 | 2.51 |
| 9 | 0.64 | 0.5 | 0.81 | 0.64 | 3.6 | 2.83 |
| 10 | 0.73 | 0.63 | 1 | 0.79 | 4 | 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 | 4.4 |
| 16 | 2.01 | 1.58 | 2.56 | 2.01 | 6.4 | 5.03 |
| 18 | 2.54 | 2 | 3.24 | 2.54 | 7.2 | 5.65 |
| 20 | 3.14 | 2.47 | 4 | 3.14 | 8 | 6.28 |
| 22 | 3.8 | 2.98 | 4.84 | 3.8 | 8.8 | 6.91 |
| 25 | 4.91 | 3.85 | 6.25 | 4.91 | 10 | 7.85 |
| 28 | 6.15 | 4.83 | 7.84 | 6.16 | 11.2 | 8.8 |
| 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 | 12.57 | 16 | 12.57 |
| 45 | 15.9 | 12.49 | 20.25 | 15.9 | 18 | 14.14 |
| 50 | 19.62 | 15.41 | 25 | 19.64 | 20 | 15.71 |
| 56 | 24.62 | 19.34 | 31.36 | 24.63 | 22.4 | 17.59 |
| 63 | 31.16 | 24.47 | 31.17 | 25.2 | ||
| 71 | 39.57 | 31.08 | 50.41 | 39.59 | 28.4 | 22.31 |
| 80 | 50.24 | 39.46 | 64 | 50.27 | 32 | 25.13 |
Alloy Steel Round Bar
Chemical Composition
| 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 | – |
Alloy Steel Round Bar
Mechanical Properties
| Grade | Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
|---|---|---|---|
| F9 | 415 | 30 | 205 |
| F5 | 275 | 485 | 20 |
Application Industry
Serving Diverse Sectors with Precision & Performance
Om Steel supplies premium steel and alloy products to a wide range of industries, ensuring strength, durability, and performance in every application. From construction, oil & gas, and automotive to power plants, shipbuilding, and chemical processing — our materials meet the demands of critical operations. Trusted by industry leaders, we deliver solutions that stand up to the toughest challenges.
Defence & Aerospace
Oil/Gas
Speciality Valves & Vacuum
Precision Components
Defence & Aerospace
Oil/Gas
Speciality Valves & Vacuum
Precision Components
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