Steel Round Bar Sizes – Standard Dimensions & Custom Options
When choosing the right material for machining, construction, or fabrication, knowing the available steel round bar sizes is essential. Whether you’re sourcing for shafts, axles, or structural applications, round bar dimensions directly affect compatibility, cost, and strength.
🔍 What is a Steel Round Bar?
A steel round bar is a long, cylindrical metal rod commonly used in manufacturing, construction, and industrial sectors. These bars are made from mild steel, carbon steel, alloy steel, and tool steel, and are available in various diameters, lengths, and finishes.
📏 Standard Steel Round Bar Sizes
Steel round bars are manufactured in a wide range of diameters and lengths. Here’s a comprehensive size chart for your reference:
✅ Diameter Range
| Common Sizes | Range |
|---|---|
| Metric Sizes | 6 mm to 300 mm |
| Imperial Sizes | 1/4″ to 12″ |
| Tolerance | h9, h10, h11 (as per ISO/DIN standards) |
✅ Length Options
| Type | Standard Length |
|---|---|
| Hot Rolled Round Bars | 5–6 meters |
| Cold Drawn/Bright Bars | 3–6 meters |
| Custom Cut Lengths | Available on request |
🧮 Steel Round Bar Size Chart (Selected Sizes)
| Diameter (mm) | Approx. Weight per Meter (kg) | Area (mm²) |
|---|---|---|
| 10 mm | 0.62 kg | 78.5 |
| 16 mm | 1.58 kg | 201 |
| 25 mm | 3.85 kg | 491 |
| 40 mm | 9.86 kg | 1257 |
| 75 mm | 34.65 kg | 4417 |
| 100 mm | 62.8 kg | 7854 |
Note: Weights are approximate and may vary based on grade and tolerance.
🏗️ Applications of Different Round Bar Sizes
Steel round bars are used in a variety of industries based on size:
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6–25 mm: Fasteners, tools, machine parts
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25–50 mm: Shafts, components, frameworks
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50–100 mm: Heavy-duty machinery, construction
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100 mm+: Forgings, rollers, industrial assemblies
🧪 Mechanical Properties by Size and Grade (Example: EN8)
| Diameter | Tensile Strength | Yield Strength | Hardness |
|---|---|---|---|
| Up to 25 mm | 600–650 MPa | 280–350 MPa | 180–200 BHN |
| 26–100 mm | 550–600 MPa | 260–320 MPa | 170–190 BHN |
🧰 Finish Types
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Black (Hot Rolled) Round Bars
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Bright (Cold Drawn / Peeled / Polished)
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Ground Finish (for close tolerance requirements)
🌍 Steel Round Bars Available Across India
We deliver to key industrial cities:
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Mumbai
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Delhi NCR
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Hyderabad
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Chennai
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Ahmedabad
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Pune
📦 Available Grades with Sizes
| Steel Grade | Available Diameters |
|---|---|
| IS 2062 MS | 6 mm – 150 mm |
| EN8 / EN9 | 10 mm – 300 mm |
| EN19 / EN24 | 12 mm – 250 mm |
| 4140 / 4340 | 20 mm – 200 mm |
| H13 / D2 Tool Steel | 20 mm – 100 mm |
🔗 Related Product Pages
📞 Call to Action – Download Size Chart or Get a Quote
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📞 Phone:+91 738 586 3226
📧 Email:info@sales@titansteel.in
🏢 Address: Navi Mumbai, Maharashtra – 410208