Long products · Merchant bar quality

Merchant Bars

Hot-rolled merchant bar shapes for fabrication, ironwork, racks, trailers and light structures: equal- and unequal-leg angles, flat bar, round bar, square bar and channels, in commercial and structural sizes.

  • Angles ¾"–6"
  • Flats ½"–8"
  • Rounds & squares from ⅜"
  • Channels from 3"
Hot-rolled round bars on a fabrication bench

Overview

At a glance

Shapes
Angles (equal or unequal legs), flat bar, round bar, square bar, channels
Process
Hot-rolled
Size ranges
Angles ¾" to 6" · flats ½" to 8" · rounds and squares from ⅜" · channels from 3" deep
Lengths
6.1 m and 12.2 m for angles and channels (as published)
Standards
Published as meeting ASTM standards; ask for the designation for your shape and size
Testing
Charpy impact test on demand (angles)

Shapes

Angles

¾", 1", 2" and 3" (equal or unequal legs)

Lengths: 6.1 m and 12.2 m

Typical uses: shelves and racks, bodywork, machinery components

Structural angles

4", 5" and 6"

Lengths: 6.1 m and 12.2 m

Typical uses: electrical tower structures, joist assembly

Flat bar

½", ¾", 1", 2" and 3"

Typical uses: ornamental ironwork and handcrafts

Structural flat bar

4", 5", 6" and 8"

Typical uses: open-web crossbars, structural reinforcement, trailers

Round bar

From ⅜"

Typical uses: ironwork, structures, joist assembly, industrial parts

Square bar

From ⅜"

Typical uses: trailer and rack assembly, ironwork

Channels

From 3" deep

Lengths: 6.1 m and 12.2 m

Typical uses: metal structures, roof reinforcement, machinery and trailer supports, racks

Merchant bar quality

Angles, flats, rounds, squares and channels

Hot-rolled shapes in commercial and structural sizes for fabrication, racks, trailers and light structures.

Steel roof framing · Photo: Zemangroup · CC BY-SA 4.0

Technical data

Specifications

Shapes, sizes and lengths as published for the merchant bar range we represent.

Merchant bar shapes and sizes as published
Shape Sizes Lengths Standard / testing
Angles (equal or unequal legs) ¾", 1", 2" and 3" widths (19.05, 25.4, 50.8 and 76.2 mm) 6.1 m and 12.2 m Charpy test on demand
Structural angles 4", 5" and 6" widths (101.6, 127.0 and 152.4 mm) 6.1 m and 12.2 m Charpy test on demand
Flat bar ½", ¾", 1", 2" and 3" widths (12.7, 19.05, 25.4, 50.8 and 76.2 mm) — Meets ASTM standards (as published)
Structural flat bar 4", 5", 6" and 8" widths (101.6, 127.0, 152.4 and 203.2 mm) — Meets ASTM standards (as published)
Round bar From ⅜" (9.525 mm) — Meets ASTM standards (as published)
Square bar From ⅜" (9.525 mm) — Meets ASTM standards (as published)
Channels Minimum 3" depth (76.2 mm) 6.1 m and 12.2 m Meets ASTM standards (as published)

Sizes are listed in inches as published; millimetre values are exact conversions (1 in = 25.4 mm). “—” means no standard length is published; confirm lengths with your quote.

Specifications as published by the mill we represent (accessed October 2026). The mill’s current data and your written quote prevail. Final selection is the responsibility of your engineer or specifier.

Applications

Where merchant bars are used

  • Steel truss roof
    Roof structuresSteel truss roof · Photo: Henk Monster · CC BY 3.0
  • Steel frame under construction
    Metal structuresSteel frame under construction · Photo: Svetlov Artem · CC BY 3.0
  • Plate being cut on a CNC plasma table
    Fabrication shopsPlate being cut on a CNC plasma table · Photo: Loffredo · CC BY-SA 4.0
  • Racks and shelving
  • Trailers and bodywork
  • Machinery components and supports
  • Joists and open-web crossbars
  • Electrical tower structures
  • Metal structures and roof reinforcement
  • Ornamental ironwork and handcrafts
  • Industrial parts

Application photos are illustrative and don’t show Tas & Zaz projects or customers.

Mill representatives

Quoted by the mill, handled locally

Your request goes to the Mexican mill we represent. Its written quote comes to you through Tas & Zaz, your local contact in Canada and the USA.

Hot rolling in a steel mill · Photo: Adrian Tync · CC BY-SA 4.0

Downloads

Technical documents

Request a Merchant bars quote

List each shape and size on its own line (for example “angle 2 × 2 × 1/4, 6.1 m, 200 pcs”), with destination and required-by date.

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Photo credits

Other product photos: images published by the mills and manufacturers we represent, or from the current Tas & Zaz website. All photos are illustrative and do not show Tas & Zaz facilities, projects or customers.