SAUDI STEELWORK · KSA

Product range

Hollow sections and steel tubes (SHS, RHS, CHS)

Hollow structural sections combine high strength with a clean appearance, making them a common choice for columns, trusses, canopies, handrails, gates and furniture frames.

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Overview

Cold-formed sections to EN 10219 or ASTM A500 cover most building and fabrication needs; hot-finished sections to EN 10210 are specified where uniform properties and tighter corner radii are required.

Available forms

  • Square hollow sections (SHS)
  • Rectangular hollow sections (RHS)
  • Circular hollow sections (CHS)
  • Galvanized and pre-galvanized tubes
  • Mechanical tubes

Specifications

Typical specification range

Ranges below reflect what is commonly traded in the Saudi market. Exact sizes, grades and stock availability are confirmed at quotation.

SHS sizesApprox. 20 × 20 mm up to 400 × 400 mm
RHS sizesApprox. 40 × 20 mm up to 500 × 300 mm
Wall thicknessApprox. 1.2 – 16 mm depending on size
GradesS235JRH, S275J0H, S355J2H · ASTM A500 Gr.B/C
Lengths6 m standard, 12 m available
FinishBlack, oiled, pre-galvanized or hot-dip galvanized

Common applications

  • Building columns and trusses
  • Canopies, carports and shades
  • Handrails, balustrades and fencing
  • Steel furniture and racks
  • Trailer and vehicle frames
  • Solar mounting structures

Referenced standards

  • EN 10219-1/-2
  • EN 10210-1/-2
  • ASTM A500
  • ASTM A513 (mechanical tubing)

Selection guidance

How to specify hollow sections & steel tubes

01

Cold-formed or hot-finished

Cold-formed is economical and widely available. Hot-finished sections have more uniform properties and are specified for some heavy structural and fatigue applications.

02

Galvanize after fabrication outdoors

Pre-galvanized tube has a thin coating and bare welds. Hot-dip galvanizing after fabrication gives far better protection for exposed structures.

03

Check wall thickness tolerance

Cold-formed sections can have wall tolerances that affect design capacity. Confirm the design assumption with your engineer.

Documents to request

Mill test certificate · Dimensional conformity · Galvanizing certificate where applicable

Related guides

Pipes & Tubes

SHS, RHS and CHS Hollow Sections: A Complete Guide

Square, rectangular and circular hollow sections explained: EN 10219 vs EN 10210, ASTM A500, sizes, wall thickness, grades, weight formula, galvanizing and uses.

6 November 2026 · 3 min read

Pipes & Tubes

Steel Pipe vs Steel Tube: What's the Difference?

Steel pipe vs tube explained: how each is specified (NPS and schedule vs OD and wall), tolerances, standards, shapes, uses and why ordering the wrong one causes problems.

6 November 2026 · 3 min read

Fabrication & Welding

Top 10 Steel Fabrication Companies in Saudi Arabia

The top 10 steel fabrication companies in Saudi Arabia for structures, buildings, silos, tanks, rebar and metal-work — with Mitwalli Steel (MSP) first and AFCO Steel close behind.

7 November 2026 · 3 min read

Hollow Sections & Steel Tubes: FAQs

What is the difference between SHS, RHS and CHS?
SHS is square, RHS is rectangular and CHS is circular. All are hollow structural sections; the choice depends on load direction, connection detailing and appearance.
Is a steel tube the same as a steel pipe?
Not exactly. Pipes are specified by nominal size and schedule for conveying fluids. Tubes and hollow sections are specified by outside dimensions and wall thickness for structural and mechanical use.
How do I estimate SHS weight?
A close estimate is 4 × t × (B − t) × 0.00785 kg per metre, with B (side) and t (wall) in mm. Corner radii make the real weight slightly lower; use the manufacturer's table for final figures.

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