Product category
Rectangular Hollow Sections (RHS)
Manufactured using premium HR steel coils and advanced High Frequency Induction Welding Technology for superior strength and durability.
Product Overview
Our Rectangular Hollow Sections are ERW rectangular steel pipes and tubes manufactured using premium HR steel coils and advanced High Frequency Induction Welding Technology for superior strength and durability.
Tubora also manufactures Circular Hollow Sections (CHS) and Square Hollow Sections (SHS) on the same ERW line. Every section follows the same controlled manufacturing process and the same quality and testing standards, and is supplied for construction, infrastructure, solar and industrial applications.
Interested in this product?
Get specifications, pricing, or connect with our team.
Specification
Size Range
40×20 – 200×100 mm
Yield Strength
210 MPa to 800 MPa
standard
IS:4923
Thickness
1.6 mm – 8 mm
General Applications
Construction
Infrastructure
Power
Agriculture
RHS Size & Weight Chart (IS:4923)
This chart covers the complete Tubora rectangular hollow section range, from 40 × 20 mm to 200 × 100 mm, with the theoretical weight per metre for each wall thickness. Shaded cells are in regular production. Grey cells can be rolled against an order. Use it to size beams and purlins, estimate tonnage and build your cutting list before you ask for a quote. For weight per 6 m length, pieces per tonne and a size calculator, see our MS rectangular pipe weight chart.
| Size D × B (mm) | 1.6 mm | 2.0 mm | 2.8 mm | 3.0 mm | 4.0 mm | 5.0 mm | 6.0 mm | 7.0 mm | 8.0 mm |
|---|---|---|---|---|---|---|---|---|---|
| 40 × 20 | 1.38 | 1.68 | 2.23 | 2.36 | 2.94 | 3.42 | 3.79 | – | – |
| 50 × 25 | 1.75 | 2.15 | 2.89 | 3.07 | 3.88 | 4.60 | 5.21 | – | – |
| 60 × 40 | 2.38 | 2.93 | 3.99 | 4.25 | 5.45 | 6.56 | 7.56 | – | – |
| 80 × 40 | 2.88 | 3.56 | 4.87 | 5.19 | 6.71 | 8.13 | 9.45 | – | – |
| 80 × 60 | 3.38 | 4.19 | 5.75 | 6.13 | 7.97 | 9.70 | 11.33 | – | – |
| 90 × 50 | 3.38 | 4.19 | 5.75 | 6.13 | 7.97 | 9.70 | 11.33 | – | – |
| 100 × 50 | – | 4.50 | 6.19 | 6.60 | 8.59 | 10.48 | 12.27 | 13.63 | 15.11 |
| 100 × 60 | – | 4.82 | 6.63 | 7.07 | 9.22 | 11.27 | 13.21 | 14.72 | 16.36 |
| 100 × 80 | – | 5.45 | 7.51 | 8.01 | 10.48 | 12.84 | 15.10 | 16.92 | 18.87 |
| 120 × 60 | – | 5.45 | 7.51 | 8.01 | 10.48 | 12.84 | 15.10 | 16.92 | 18.87 |
| 120 × 80 | – | 6.07 | 8.39 | 8.96 | 11.73 | 14.41 | 16.98 | 19.12 | 21.39 |
| 140 × 80 | – | – | – | 9.90 | 12.99 | 15.98 | 18.87 | 21.32 | 23.90 |
| 150 × 100 | – | – | – | 11.31 | 14.87 | 18.33 | 21.69 | 24.62 | 27.67 |
| 160 × 80 | – | – | – | 10.84 | 14.25 | 17.55 | 20.75 | 23.52 | 26.41 |
| 180 × 100 | – | – | – | 12.72 | 16.76 | 20.69 | 24.52 | 27.91 | 31.43 |
| 200 × 100 | – | – | – | 13.67 | 18.01 | 22.26 | 26.40 | 30.11 | 33.95 |
Weights are theoretical, calculated from the IS:4923 sectional area (outer corner radius 2t, or 2.5t above 6 mm) at 7.85 g/cm³. Multiply by 6 for a standard 6 m length. Manufacturing tolerance: thickness ±7.5%, weight on individual length +10% / −8%, outside dimensions ±1% (min ±0.5 mm), corner radii 3t max, squareness 90° ±2°. Thicknesses other than those shown can be supplied on request.
Technical Specifications
| Product | ERW Rectangular Hollow Section (RHS) / rectangular steel tube |
|---|---|
| Standard | IS:4923, hollow steel sections for structural use |
| Size range | 40 × 20 mm to 200 × 100 mm |
| Wall thickness | 1.6 mm to 8 mm |
| Yield strength | 210 MPa to 800 MPa, depending on grade |
| Length | 6 m standard; custom lengths on request |
| Raw material | Premium HR steel coils |
| Process | High Frequency Induction (HFI) ERW welding, bead trimming, rectangular sizing and automatic cutting |
| Testing | Hydro testing, eddy current testing, spectrometer chemical analysis, mechanical testing and dimensional checks |
| Certification | BIS / ISI certified |
| Plant | Banari, Janjgir-Champa, Chhattisgarh |
A rectangular hollow section puts more steel where bending stress is highest. Set on its deeper side, an RHS carries more load per kg than a square section of the same weight, which is why it is the standard choice for beams, purlins, rafters and chassis rails. Tubora RHS is formed from HR coil, welded by high frequency induction and sized to IS:4923 tolerances.
Where Tubora RHS Is Used
- Roofing and sheds: purlins, rafters, roof trusses and pre-engineered buildings.
- Structural framing: beams, lintels, mezzanine joists and portal frames.
- Construction: door and window frames, gates, grills, staircases and facade framing.
- Transport: bus body frames, truck and trailer chassis and cross members.
- Infrastructure: stadiums, airport terminals, bus stops, parking structures and signage.
- Solar and energy: solar mounting rails and support structures.
- Industrial: warehouse and factory structures, storage racks, machinery frames and conveyors.
How We Make RHS
All Tubora sections run through the same controlled ERW line at our Janjgir-Champa plant:
- Raw material inspection of every HR coil
- Coil slitting to the exact strip width
- Roll forming into a round tube, then sized into a rectangular profile
- High frequency induction welding
- Inside and outside bead trimming
- Cooling and sizing to final dimensions
- Automatic cutting to length
- Hydro testing
- Quality inspection: dimensions, weld, finish and straightness
- Bundling and dispatch
RHS, SHS or CHS: Which Section Do You Need?
Choose RHS when a member bends mainly in one direction, such as beams, purlins, rafters and chassis rails. If the load is similar on both axes, Square Hollow Sections (SHS) are the better fit. For poles, scaffolding and members in torsion, use Circular Hollow Sections (CHS). Compare all three in our product range.
Ordering Tubora RHS
Send us the size, wall thickness, length and quantity you need, and our sales team will confirm availability, lead time and price. Dealers and project buyers across India are supplied through our distribution network. Download the Tubora product catalogue (PDF) or send an enquiry for a RHS quote.
Product category
Frequently asked questions
Quick answers about Tubora Pipes (RHS, CHS, SHS & Customized). For detailed specs or pricing, reach out to our team.
Drop Us mail at info@tubora.in
What products does Tubora manufacture?
Tubora manufactures Circular Hollow Sections (CHS), Square Hollow Sections (SHS), and Rectangular Hollow Sections (RHS) for structural, fabrication, and infrastructure use. These are ERW steel pipes and tubes made for strength and durability.
What are the key specifications of Tubora RHS pipes?
Tubora RHS pipes are available in sizes from 40×20 mm to 200×100 mm, thickness from 1.6 mm to 8 mm, and yield strength from 210 MPa to 800 MPa. They follow IS:4923 standards.
How can I get a quotation or technical specifications?
Are products available across India?
Tubora serves customers through a wide network of distributors and dealers. Contact us to find supply options in your region.
Need Help Choosing the Right Section?
Contact our team for product details, technical specs, and dealer enquiries.