MS flat bars are strong, versatile metal pieces used in many industries because they are durable and affordable. Knowing their sizes and weight is important when planning any project, as these bars offer a wide surface for welding and mounting while keeping a good strength-to-weight balance. They are commonly used in vehicle frames, machinery, construction work, and structural supports. In this guide, you’ll learn the key details about MS flat bars—from standard sizes to practical uses—so you can choose the right material with confidence.
Key Takeaways
- Choose the right grade
- Calculate weight right
- Check quality and size
- Strong and easy to work with
- Know common sizes
- Buy from trusted suppliers
Types and Standards of MS Flat Bars
| Category | Details |
| Common Grades in India | Commercial Quality: Good bendability; used in furniture and automotive parts.IS 2062 E250: Reliable structural grade; used in construction, machinery, and infrastructure.SAIL Rerolled Flats: Ideal for support braces, ladder hangers, and gate fittings. |
| International Standards | ASTM A276: Width 1.2–150 mm; thickness 25–33 mm.EN3B (Bright Finish): Good machinability.S275JR (Black/Galvanized): Used for general structural work. |
| Standard Size Range | Width: 10–400 mmThickness: 3–75 mmLength: 6.1–6.4 meters |
| Material Properties | High ductility and malleability; easy to bend and shape without losing strength. |
| Example Weight Per Meter | 50 × 8 mm flat bar → 3.14 kg/m200 × 25 mm flat bar → 39.25 kg/m |
Note: Actual sizes, grades, and weights may vary slightly depending on the manufacturer and rolling method. Always confirm specifications with your supplier before purchasing.
Top Benefits of Using MS Flat Bars in Projects
- They have a strong strength-to-weight balance, making them great for small and large structural jobs.
- They can handle heavy loads without bending or losing shape.
- They are very durable and last longer than many other materials, even in tough conditions.
- They resist wear, stress cracks, and warping, which keeps them safe and reliable.
- Their flat and smooth surface makes cutting, welding, and drilling simple.
- They are easy to bend and shape, even with basic tools.
- They offer high strength at a low cost, making them budget-friendly for many projects.
- They need little maintenance, which helps reduce long-term expenses.
- They work well in many fields, including construction, machinery, automotive, furniture, and power plants.
- Their flexibility makes them useful in frames, bases, supports, and reinforcement structures.
MS Flat weight and size chart
Weight (kg) = Width × Thickness × Length × 7.85 / 1000
| Size (mm) | Thickness (mm) | Weight (kg/m) | Weight (kg/ft) |
| 25 × 3 | 3 | 0.59 kg/m | 0.18 kg/ft |
| 25 × 5 | 5 | 0.98 kg/m | 0.30 kg/ft |
| 32 × 6 | 6 | 1.51 kg/m | 0.46 kg/ft |
| 40 × 5 | 5 | 1.57 kg/m | 0.48 kg/ft |
| 50 × 6 | 6 | 2.36 kg/m | 0.72 kg/ft |
| 50 × 10 | 10 | 3.90 kg/m | 1.20 kg/ft |
| 75 × 10 | 10 | 5.89 kg/m | 1.80 kg/ft |
| 100 × 40 | 40 | 31.40 kg/m | 9.60 kg/ft |
| 150 × 25 | 25 | 29.44 kg/m | 8.90 kg/ft |
Applications and Buying Tips for MS Flat Bars
From construction sites to workshops, MS flat bars are used in many industries. They work well in frames, base plates, and brackets. These bars are also common in machinery parts and automotive body structures because they are strong, stable, and easy to work with.
When choosing MS flat bars for any project, keep these points in mind:
- Material Quality – Pick bars made from good raw materials to ensure strength and safety.
- Dimensional Accuracy – Check the exact size to avoid fitting issues during installation.
- Surface Finish – Important for coating, painting, or when the final look matters.
- Load-Bearing Capacity – Select bars that can handle the weight and stress of your use case.
MS flat bars are also used in railways, electrical poles, and bridge supports. Their smooth surface makes them suitable for furniture, gates, railings, and decorative grills. If needed, you can explore trusted suppliers like Udhhyog Steel Industrial Catalyst for quality options.
For reliable sourcing, you can also explore Udhhyog Steel Industrial Catalyst for quality steel products.
visit our flat category to learn more about flats.
Conclusion
MS flat bars are strong, easy to work with, and used in many projects. Knowing the right size and weight helps you save material and keep the structure safe.
They are low-cost, simple to cut or weld, and need little care. Check quality, size, finish, and load capacity before buying. Good suppliers, like Udhhyog Steel Industrial Catalyst, ensure you get the right material.
These flat bars stay popular because they offer strength, value, and versatility.
