Mild Steel Equal Angle Iron – S275, 20x20mm to 150x150mm, 6m Lengths & Cut to Size, Angle Bar for Brackets, Frames, Lintels & Fabrication

Our mild steel angle — commonly called angle iron, angle steel or rolled steel angle section — is hot-rolled S275 equal angle (L-section), supplied in 6m lengths in sizes from 20x20mm up to 150x150mm and thicknesses from 3mm to 10mm. Available cut to size on request, this steel angle iron is ideal for frames, brackets, supports, lintels, shelving and general structural and fabrication work, with a 3-5 working day lead time to mainland UK.

Technical Specification

Mild Steel Angle Iron Sizes & Weight Chart

Full S275 mild steel equal angle (angle iron) size chart with nominal weight per metre to BS EN 10056. Every size is available in 6m lengths or cut to size.

Popular angle iron sizes include 20mm, 25mm, 30mm, 40mm and 50mm angle iron for brackets and light frames, through 75x75 and 80x80 angle iron, up to heavy 100x100, 120x120 and 150mm angle iron for structural work. Weights are nominal mass per metre to BS EN 10056 — for an exact figure use our metal weight calculator, or see the full angle iron sizes & weights guide.

Rackerman is a UK steel supplier: buy mild steel angle iron — also known as angle steel, steel angle iron or rolled steel angle section — online with fast mainland UK delivery and cut-to-size service, a convenient alternative to a local steel stockholder near you. Angle iron for sale in all sizes for brackets, frames, lintels, shelving and fabrication.

Angle Iron Common Uses

Mild steel angle iron is widely used for structural frames, brackets and supports, lintels, shelving, gates and railings, trailer and vehicle work, agricultural structures, bracing, edge protection and general fabrication. The equal angle (L-shaped) profile provides rigidity and strength in two directions while remaining easy to cut, drill and weld. For an L-section with two different leg widths, see our mild steel unequal angle.

Material Grade

Supplied in S275 mild steel, a commonly specified general-purpose structural grade suitable for welding, cutting, drilling and fabrication. For exact section properties, tolerances and mass per metre, refer to the applicable mill certificate or relevant BS EN standard for your application.

Finish and Protection

Mild steel angle is supplied in standard mill finish. The surface may show normal mill scale, handling marks or light surface oxidation, which is typical for untreated steel. For outdoor or moisture-exposed use, the steel should be cleaned, primed and protected with a suitable paint or coating system. For a ready-protected alternative, see our galvanised steel angle, hot-dip zinc coated for outdoor corrosion resistance.

Cutting and Fabrication

S275 mild steel angle can be cut, drilled, welded and fabricated using suitable metalworking tools and correct preparation. We can also supply this angle cut to size on request — contact us before ordering with your required lengths to confirm availability. Cut ends and drilled holes should be protected if the section will be used outside or in damp conditions. Always use suitable protective equipment when cutting, drilling or welding steel.

Related Mild Steel Sections

Building a frame or structure? See the rest of our mild steel range: unequal angle, flat bar, square bar, round bar, box section (SHS), rectangular hollow section (RHS) and steel channel. Work out weights with our metal weight calculator.

Compare Our Full Angle Range

Choosing between materials? Compare our other angle sections: galvanised steel angle for outdoor use, 304 stainless steel angle for corrosion resistance, and lightweight aluminium equal angle or aluminium unequal angle. Browse the full steel angle collection.

Delivery Information

Lead times are currently 3-5 working days. Steel sections are long, heavy items supplied in 6m lengths, so suitable delivery access is required. If your order is heavy, please ensure someone is available to help with offloading on arrival. Contact us for a custom quote on bulk or trade quantities.