An MS (Mild Steel) flat bar is a versatile, solid rectangular steel bar. Prized for its strength, weldability, and affordability, it is widely used in general fabrication, structural framing, window grills, machinery bases, and industrial gratings. Dimensions: Available in varying thicknesses (e.g., 3 mm to 50 mm) and widths.Standard Length: Typically sold in 3, 6, or 9-meter lengths.Common Grade: IS 2062 E250 is standard, while grades like Fe 500D and Fe 550D are used for heavier construction.