Tianjin Brisk Steel is one of the manufacturers of Rectangular Hollow Section (RHS) Steel Tube in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.
Product Overview & Key Features
Our Rectangular Hollow Section (RHS) steel tube - also known as rectangular box section or rectangular structural tubing - is a cold-formed or hot-finished structural profile widely used in construction, steel structure fabrication, and mechanical engineering. Manufactured from high-quality carbon steel coils through precision welding and sizing, RHS tubes offer excellent load-bearing capacity, tight dimensional tolerance, and consistent wall thickness across every batch.
Key Features
- Available in both cold-formed (EN 10219) and hot-finished (EN 10210) processes
- Straight seams with smooth surface finish, minimal weld bead
- Excellent bending resistance, ideal for beams, columns, and frame structures
- Available in black (as-welded), galvanized, and pre-painted finishes
- Compliant with ASTM A500, A513, EN 10219, BS EN 10210 standards.
RHS Size Chart & Wall Thickness
- Please contact us for further specifications.
Formulas and Applications
RHS Weight Calculation Formula Weight (kg/m) = 0.00785 × t × [(A + B)*2 − 4t)]
Where t = wall thickness, A = longer side, B = shorter side (all in mm). This same rectangular hollow section weight formula applies to custom sizes not listed in the standard rectangular pipe weight chart above - useful for BOQ preparation and freight cost estimation.
Applications Steel structure buildings, curtain wall framing, warehouse and workshop frames, bridge railings, container manufacturing, agricultural machinery chassis, general fabrication welding, and rectangular box section for architectural facades.
Frequently Asked Questions (FAQ)
Q: What is the difference between RHS and rectangular pipe?
A: RHS (Rectangular Hollow Section) and rectangular pipe/tube refer to the same product; "RHS" is the structural engineering term used in EN/BS standards, while "rectangular tube" is more common in general trade.
Q:What sizes does rectangular hollow section come in?
A: Standard rectangular hollow section sizes range from 40x20mm up to 400x200mm, with wall thickness from 1.5mm to 16mm; custom sizes and corner radius tolerances are available on request.
Q:How do I calculate rectangular hollow section weight?
A: Use the formula above, or request our free rectangular pipe weight chart / weight calculator for exact figures per size and grade.
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