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SQUARE TUBE

Aluminum Square Tube Extrusions — Standard Mill Profiles

Royal Metal supplies a comprehensive range of aluminum square tube extrusions in standard mill finish, covering 85+ off-the-shelf sizes from 15.88mm to 152.4mm. Available in both 6060 (6060-T5) and 6063 (6063-T5) alloys.

Key Specifications

ParameterRange
Outer Dimension15.88mm × 15.88mm – 152.4mm × 152.4mm
Wall Thickness0.8mm – 6.35mm
Alloys6060-T5 / 6063-T5
Standard Length6,000mm (custom cutting available)
Surface FinishMill Finish, Anodized, Powder Coated


  • Aluminum Square Tube Profiles

    SQ-85 Series

    Standard aluminum square tube extrusions from 15.88mm to 152.4mm. 85 sizes available in 6060 & 6063 alloys with wall thickness from 0.8mm to 6.35mm. Ideal for construction, furnishing, mechanical and electromechanical assemblies. Contact us for custom sizes, cutting and surface finishing.
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  • Aluminum Post Caps for Fence & Gate Posts — Pyramid & Flat Top Systems

    post cap

    Royal Metal Products supplies aluminum post cap systems covering 7 external sizes (50×50 to 150×150 mm) in pyramid and flat-top styles, plus internal plug caps and two-part base plate covers. All items are die-cast or fabricated aluminum with powder coating, woodgrain transfer, or anodized finishes....
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FAQs about
What surface finishes are available for aluminum square tubes?
Royal Metal offers multiple surface finish options for aluminum square tubes: mill finish, anodizing, powder coating, brushed/satin, and polished. Selection tips for outdoor, marine, food/hygiene, and color matching.
Square tube vs rectangular tube — which aluminum profile should I choose?
The choice between square and rectangular aluminum tubes depends on your load direction, aesthetic requirements, and installation constraints. Compare load behavior, aesthetics, space constraints, and connection design.
How to choose the right wall thickness for aluminum square tubes?
Choosing the correct wall thickness depends on your structural load requirements, weight constraints, and budget. Guide covers 0.8mm to 6.35mm with key considerations for span length, load type, and connection method.
6060 vs 6063 aluminum alloy — which is better for square tubes?
Royal Metal offers aluminum square tubes in both 6060 and 6063 alloys. Comparison of tensile strength, yield strength, elongation, surface finish, corrosion resistance, and typical applications.
What sizes of aluminum square tube are available from Royal Metal?
Royal Metal Products offers 85 standard aluminum square tube sizes ranging from 15.88x15.88mm to 152.4x152.4mm. Wall thickness options range from 0.8mm to 6.35mm in 6060 and 6063-T5 alloys. Custom sizes and non-standard wall thicknesses are available upon