SteelFlat Bar
Mild steel flat bar — versatile merchant bar for fabrication, brackets, frames and general engineering.
Steel flat bar is a solid rectangular-section merchant bar used throughout fabrication for brackets, frames, base plates, straps and general engineering. We supply mild steel flat bar across the full range of widths and thicknesses to AS/NZS 3679.1, alongside round and square bar. Available black or hot-dip galvanised, cut to length, with material certification.
Product Range
Mild Steel Flat Bar
Solid flat bar from 20mm to 150mm wide in a range of thicknesses for fabrication and brackets.
Round & Square Bar
Merchant round and square bar to complement flat bar for shafts, pins, frames and engineering.
Grade 300 Material
Hot-rolled to AS/NZS 3679.1 with verified mechanical properties and good weldability.
Black or Galvanised
Supplied black or hot-dip galvanised for corrosion protection in exposed use.
Cut-to-Length
Cut to your specified lengths to reduce wastage and on-site handling.
Common Applications
- Brackets, cleats and base plates
- Frames, straps and supports
- Gates, fencing and balustrades
- Repair, maintenance and general engineering
- Architectural and fabrication detailing
Relevant Standards
- AS/NZS 3679.1 — Hot-rolled structural steel bars and sections
- AS/NZS 1594 — Hot-rolled steel flat products
- AS/NZS 4680 — Hot-dip galvanized (zinc) coatings on fabricated ferrous articles
Steel Flat Bar — Frequently Asked Questions
What flat bar sizes are available?
Widths from 20 to 300 mm and thicknesses from 3 to 25 mm in Grade 250 or 300 mild steel, plus round and square bar, in 6 metre lengths or cut to length.
What is mild steel flat bar used for?
Brackets, straps, gates, balustrade infill, machine guards, lintel plates and general fabrication where a flat, weldable section is needed.
Can flat bar be supplied galvanised or cut to size?
Yes. Flat bar can be cut to length, drilled and hot-dip galvanised before delivery, which saves handling and coating time on site.
Related Products & Articles
Need a Quote?
Tell us about your project requirements and we'll provide a competitive supply proposal.
Get in Touch