Shanxi Zhongcheng Metal Co., Ltd.
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal |
| Supply Ability | 10000tons |
| Delivery Time | 15-25days |
| Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA |
| Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available |
| Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg |
| Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons |
| Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 |
| Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA |
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Product Specification
| Payment Terms | T/T，D/P，D/A，Western Union，PayPal | Supply Ability | 10000tons |
| Delivery Time | 15-25days | Packaging Details | Wooden pallets, wooden crates, woven bags, etc. |
| Country of Origin | MADE IN CHAINA | Brand | Baosteel，TISCO |
| Certifications | ISO/EN 10204 Type 3.1 / 3.2 available | Grade | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH) |
| MOQ | 100kg | Packaging | Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag |
| Supply Capacity | 10000tons | Brand Name | Baosteel，TISCO |
| Model Number | 201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 | Certification | EN 10204 Type 3.1 / 3.2 available |
| Place of Origin | MADE IN CHAINA | ||
| High Light | Structural Rectangular Stainless Steel Pipe ，Rectangular Stainless Steel Pipe Welded ，High Strength Stainless Steel RHS | ||
The Structural Stainless Steel Rectangular Hollow Section (RHS) is a cold-formed or hot-finished welded hollow profile specifically engineered for load-bearing applications in construction, infrastructure, and industrial projects. Manufactured from high-strength austenitic or duplex stainless steel grades, this section offers an exceptional combination of high strength-to-weight ratio, corrosion resistance, fire resistance, and long-term durability. Unlike decorative or architectural grades, structural RHS is produced with stricter mechanical property requirements and enhanced weld integrity for reliable performance under static and dynamic loads.
| Parameter | Details |
|---|---|
| Standards | EN 10219-2, ASTM A554, JIS G3446 |
| Available Grades | 304, 304L, 316, 316L, Duplex 2205 |
| Rectangular Sizes | Width: 40 mm – 400 mm; Height: 20 mm – 200 mm |
| Wall Thickness | 1.5 mm – 10.0 mm |
| Length | 6m, 12m, or custom lengths up to 18m |
| Manufacturing Process | Cold-formed welded or Hot-finished seamless |
| Welding Process | TIG (GTAW), Laser, or ERW |
| Heat Treatment | Annealed after manufacturing |
| Surface Finish | Mill finish, pickled, or primed |
| End Finish | Plain ends or beveled ends |
| Grade | C ≤ | Si ≤ | Mn ≤ | P ≤ | S ≤ | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| 304 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 | – | – |
| 304L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | – | – |
| 316 | 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | – |
| 316L | 0.03 | 0.75 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | – |
| Duplex 2205 | 0.03 | 1.00 | 2.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
Composition per EN 10219-2 and ASTM A554.
| Grade | Tensile Strength (MPa) min | Yield Strength (MPa) min | Elongation (%) min | Hardness (HB) max |
|---|---|---|---|---|
| 304 | 515 | 205 | 35 | 201 |
| 304L | 485 | 170 | 35 | 201 |
| 316 | 515 | 205 | 35 | 217 |
| 316L | 485 | 170 | 35 | 217 |
| Duplex 2205 | 620 | 450 | 25 | 290 |
Tested in accordance with EN ISO 6892-1 or ASTM E8.
| Property | Value |
|---|---|
| Mass per meter | 8.8 kg/m |
| Cross-sectional area | 1,120 mm² |
| Moment of inertia (Ixx) | 1.53 × 10⁶ mm⁴ |
| Moment of inertia (Iyy) | 0.54 × 10⁶ mm⁴ |
| Section modulus (Wxx) | 30.6 × 10³ mm³ |
| Section modulus (Wyy) | 21.6 × 10³ mm³ |
| Radius of gyration (ix) | 37.0 mm |
| Radius of gyration (iy) | 22.0 mm |
Full section property tables available upon request for all sizes and grades.
High Strength-to-Weight Ratio – Efficient load-bearing capacity
Excellent Corrosion Resistance – Suitable for indoor, outdoor, and marine environments
Fire Resistance – Maintains structural integrity at elevated temperatures
Low Maintenance – No painting or coating required for corrosion protection
Good Ductility – Absorbs energy without brittle failure
Excellent Weldability – Easy to join using standard methods
100% Recyclable – Environmentally sustainable
Long Service Life – 50+ years in most environments
| Parameter | Tolerance |
|---|---|
| Width / Height | ±1% (min ±0.5 mm, max ±5 mm) |
| Wall thickness | ±10% |
| Length | +0 / -3 mm for fixed lengths |
| Straightness | 0.15% of total length |
| Twist | 2 mm + 0.5 mm per meter |
| Concave / Convex | 0.8% of width |
| Squareness of corners | 90° ± 1° |
Columns and beams
Roof trusses and purlins
Bracing members
Mezzanine floor supports
Portal frames
Bridge trusses and railings
Pedestrian footbridges
Highway sign gantries
Bus shelters and canopies
Railway platform structures
Conveyor support structures
Equipment platforms
Crane runway beams
Storage rack frames
Machine bases
Offshore platform handrails
Dock structures
Shipbuilding components
Coastal infrastructure
Barn and shed frames
Livestock equipment
Greenhouse structures
| Advantage | Description |
|---|---|
| Torsional Rigidity | Closed section provides excellent resistance to twisting |
| Uniform Strength | Properties equal in both axes (square sections) |
| Aesthetic Appearance | Clean lines for visible structural applications |
| Reduced Weight | Hollow design minimizes material while maintaining strength |
| Corrosion Allowance | No additional thickness required for rust loss |
| Life Cycle Cost | Lower total cost due to eliminated coating and reduced maintenance |
| Property | Carbon Steel (S355) | Stainless Steel 304 | Stainless Steel 316 | Duplex 2205 |
|---|---|---|---|---|
| Yield strength (MPa) | 355 | 205 | 205 | 450 |
| Corrosion resistance | Poor (requires coating) | Excellent | Excellent | Excellent |
| Fire resistance | Good (requires protection) | Excellent | Excellent | Excellent |
| Maintenance | High (repainting) | Low | Low | Low |
| Initial cost | Low | Medium | High | High |
| Life cycle cost | High | Low | Low | Low |
| Process | Recommendation |
|---|---|
| Cutting | Band saw, abrasive wheel, or plasma cutter |
| Welding | TIG (GTAW) or MIG (GMAW); use matching filler metal (ER308/ER316/ER2209) |
| Drilling | Cobalt or carbide drill bits; use cutting fluid |
| Machining | Use sharp tools; lower cutting speeds than carbon steel |
| Bending | Use mandrel or roll bender; annealed condition preferred |
For inquiries, technical datasheets, section property tables, or custom sizes, please contact our sales team.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
20000000-50000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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