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Convex

Convex steel bar is a re-rolled steel profile used where a curved steel bar section is required for fabrication, repair, or general metalwork projects. Available in BS EN 10025-2 S275JR grade, this range offers a solid steel option for applications that need a shaped profile rather than a standard flat, round, or square bar.

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Convex steel bar is a re-rolled steel profile used where a curved steel bar section is required for fabrication, repair, or general metalwork projects. Available in BS EN 10025-2 S275JR grade, this range offers a solid steel option for applications that need a shaped profile rather than a standard flat, round, or square bar.

Technical details:

  • Supplied in 6,000 mm lengths for workshop and fabrication use
  • Available in 40 x 12 mm and 50 x 12 mm designations
  • Weight options include 3.2 kg/m and 4.2 kg/m depending on the selected size
  • Suitable for projects where a convex face is needed for edging, shaped detailing, or general steelwork applications

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View Convex FAQS

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DESIGNATION PRICE (PER BAR)
40 x 12mm from £49.31 inc VAT VIEW
50 x 12mm from £64.72 inc VAT VIEW

Convex FAQs

What is the difference between a convex steel bar and flat steel bar?

The convex steel bar has a curved face, while the flat steel bar has a level rectangular profile. A convex bar is usually chosen when the finished steelwork needs a shaped or rounded surface rather than a standard flat edge.

When should I choose a convex steel bar instead of a round bar?

Choose a convex steel bar when you need one curved face with a flatter fixing or contact surface. A round bar is better when a fully circular profile is required.

Is a convex steel bar suitable for welding?

Yes, convex steel bars in mild steel grade S275JR are generally suitable for welding, provided the correct welding method, preparation, and safety procedures are used.

Does a convex steel bar need painting or protection?

If the steel will be exposed to moisture or outdoor conditions, it should usually be protected with a suitable primer, paint, or coating to help reduce corrosion.