MS Square

• An MS Square Bar is a solid bar made of mild steel (low carbon steel) with a square cross-section. Each side of the bar is equal in width. It is used in fabrication, construction, engineering, and general purpose projects because of its strength, weldability, and ease of machining.

  What are the standard sizes (dimensions) available for MS Square Bars?

  MS Square Bars are typically available in sizes starting from small like 8×8 mm up to larger sizes such as 75×75 mm or more. Some manufacturers provide customized sizes beyond these ranges.

The weight depends on the dimension (side length) of the square. For example, a 25×25 mm square bar weighs roughly 4.90 kg/m. Other sizes such as 10×10 mm or 20×20 mm have lower weight accordingly.

Tolerances vary with size. For example, for square bars up to 25 mm side, the rolling tolerance might be ±0.5 mm; for higher sizes it increases (±0.8 mm, ±1.0 etc). Fixed lengths may have tolerance in length like ±100 mm.

The typical finish is mill finish (hot rolled) with a rough surface. On request, manufacturers may provide more polished / bright finishes, painting, or anti‑rust coating to protect the surface.

Yes. Many suppliers offer customization: cutting to required length (random / fixed), depending on customer order. Common lengths are about 6 meters, but custom lengths are possible.

Yes. Mild steel is highly weldable and machinable, and square bars are easier to clamp and work with. They are suitable for drilling, cutting, welding, etc.

For bars conforming to IS 2062 Grade A, yield strength is approximately ~250 MPa (varies with precise grade and section) and tensile strength somewhat higher. It depends on the grade and manufacturer. (Note: specific test certificates give exact numbers.)

Yes. Since mild steel is not stainless, it can oxidize (rust) if exposed to moisture, humidity, etc. To prevent this, coatings like paint, galvanizing, or proper storage (dry, covered) are used.

Applications include fabrication of brackets, support frames, furniture, gates/grilles, frames for machinery, fasteners, tool parts, etc. They are used broadly in general engineering, decorative, structural, and manufacturing industries.

This depends on the supplier. Some have minimum orders of tens of kilograms (e.g. 16 kg in one case), others have larger minimums especially for large sizes or special grades.

Pricing depends on side dimension (size), grade of steel, length, weight, surface finish, quantity, transport, and current steel market rates. Bigger cross-section means more material hence higher cost per piece.

Store off ground using wood or sleepers, cover from rain and moisture, avoid contact with corrosive materials, avoid bending or twisting during transport, ensure bundles are secure to prevent warping or damage.