High-Strength Corrosion Resistant Customizable Rectangular Steel Tubes for Structural Support
Price:
$99-99,999
MOQ:
100 PCS
Delivery Time:
5-8 WEEKS
Brand:
Shunyao Supply Chain
Product Description
High-Strength Rectangular Steel Tubes for Steel Structure Buildings
Product Overview
Our high-strength rectangular steel tubes (Rectangular Hollow Sections - RHS) are engineered specifically to provide maximum structural integrity for modern steel structure buildings, industrial warehouses, PEB (Pre-Engineered Buildings), and commercial factories. Manufactured using premium-grade steel and advanced high-frequency welding (ERW) or seamless processes, these tubes offer an outstanding strength-to-weight ratio, exceptional durability, and superior resistance to torsional loading.
We provide full customization of dimensions, wall thicknesses, lengths, and surface finishes (including pre-galvanized, hot-dip galvanized, and anti-corrosion painting) to precisely match your architectural blueprints and local building codes.
Quick Details & Specifications
- Product Type: Rectangular Hollow Section (RHS), Structural Steel Tube
- Standard: ASTM A500 Grade B/C, EN 10219 (S235JRH, S355J2H), GB/T 6728 (Q235B, Q355B), JIS G3466
- Material Grade: Q235B, Q355B, S235, S355, Gr.B, Gr.C
- Outer Diameter (Section Size): 20x30 mm to 400x600 mm (Custom sizes available)
- Wall Thickness: 1.2 mm to 16.0 mm
- Length: 1.0 m to 12.0 m (Standard export lengths: 5.8m, 6.0m, 11.8m, 12.0m for container loading)
- Surface Treatment: Black/Bare, Lightly Oiled, Pre-galvanized (40-200g/m²), Hot-dip Galvanized (200-600g/m²), Anti-rust Primer Painting
- End Processing: Plain ends, square cut, burr removed
- Application: Column and beam frameworks, truss systems, roof purlins, agricultural greenhouses, prefabricated modular housing, industrial platforms
Technical Specification & Theoretical Weight
| Section Size (H x W mm) | Wall Thickness (t mm) | Cross-Sectional Area (cm²) | Theoretical Weight (kg/m) | Standard Export Length (m) |
|---|---|---|---|---|
| 50 x 100 | 2.0 / 3.0 / 4.0 | 5.64 / 8.26 / 10.70 | 4.43 / 6.48 / 8.40 | 5.8 / 6.0 |
| 60 x 120 | 3.0 / 4.0 / 5.0 | 10.06 / 13.10 / 15.90 | 7.90 / 10.28 / 12.48 | 5.8 / 6.0 |
| 80 x 120 | 3.0 / 4.0 / 5.0 | 11.26 / 14.70 / 17.90 | 8.84 / 11.54 / 14.05 | 5.8 / 6.0 / 11.8 / 12.0 |
| 100 x 150 | 4.0 / 5.0 / 6.0 | 18.70 / 22.90 / 26.90 | 14.68 / 17.98 / 21.12 | 5.8 / 6.0 / 11.8 / 12.0 |
| 100 x 200 | 4.0 / 6.0 / 8.0 | 22.70 / 32.90 / 42.40 | 17.82 / 25.83 / 33.28 | 5.8 / 6.0 / 11.8 / 12.0 |
| 150 x 250 | 5.0 / 6.0 / 8.0 | 37.90 / 44.90 / 58.40 | 29.75 / 35.25 / 45.84 | 5.8 / 6.0 / 11.8 / 12.0 |
| 200 x 300 | 6.0 / 8.0 / 10.0 | 56.90 / 74.40 / 91.40 | 44.67 / 58.40 / 71.75 | 11.8 / 12.0 |
| 250 x 400 | 8.0 / 10.0 / 12.0 | 98.40 / 121.40 / 143.40 | 77.24 / 95.30 / 112.57 | 11.8 / 12.0 |
| 300 x 500 | 8.0 / 12.0 / 16.0 | 114.40 / 167.40 / 217.40 | 89.80 / 131.41 / 170.66 | 11.8 / 12.0 |
Key Product Features
- High Load-Bearing Capacity & Rigidity: Optimized for heavy-duty structural applications, allowing for longer spans and reduced overall steel consumption in industrial buildings.
- Outstanding Corrosion Resistance: Our hot-dip galvanized coating option provides up to 600g/m² of zinc protection, guaranteeing a lifespan of 20+ years in harsh tropical, coastal, or high-humidity environments.
- Engineered for Precise Fitting: Uniform thickness, tight tolerances, and perfectly de-burred square cut ends ensure smooth on-site welding or high-strength bolt connections.
- Flexible Customization (Made-to-Order): We accommodate specialized requests for chemical compositions, mechanical properties, exact cut-to-length requests, and specific bundle packing according to project blueprints.
Applications
- Industrial Infrastructure: Primary columns, roof trusses, and mezzanine beams for steel warehouses, commercial factories, and hangars.
- Prefabricated Modular Buildings: Main load-bearing wall frames and base platforms for flat-pack container houses and labor camps.
- Agricultural Frameworks: Heavy-duty structural pillars and long-span framing for commercial modern film/glass greenhouses.
Packing & Container Loading Logistics
- Seaworthy Packing: Tied firmly with heavy-duty steel strips in hexagonal bundles, wrapped with waterproof PVC woven fabric upon request to prevent salt spray corrosion during ocean transit.
- 20ft GP Container: Best suited for lengths up to 5.8m / 5.9m. Maximum loading capacity is approximately 25-28 metric tons.
- 40ft GP/HQ Container: Best suited for lengths up to 11.8m / 12.0m. Maximizes volume and weight for long structural profiles.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Sichuan Shunyao Supply Chain Management Co., Ltd.
Location
No. 3, 3rd Floor, Building 1, No. 27, Xianggang Road, Chenghua District, Chengdu
Contact Person
Lei