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Quality Load Bearing Stainless Steel Rectangular Section High Strength Stainless Steel HSS factory
Quality Load Bearing Stainless Steel Rectangular Section High Strength Stainless Steel HSS factory

Load Bearing Stainless Steel Rectangular Section High Strength Stainless Steel HSS

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
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
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
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Molybdenum Alloy Stainless Steel Pipe

Stainless Steel Pipe Chloride Resistance

Load Bearing Stainless Steel Rectangular Section
Product Summary
The Load Bearing Stainless Steel Rectangular Section is a high-strength hollow structural section (HSS) engineered to support significant static and dynamic loads in construction, infrastructure, and industrial applications. Manufactured from premium austenitic or duplex stainless steel grades, this ...

Product Details

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Load Bearing Stainless Steel Rectangular Section

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Construction Stainless Steel Rectangular Section

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High Strength Stainless Steel HSS
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
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

The Load Bearing Stainless Steel Rectangular Section is a high-strength hollow structural section (HSS) engineered to support significant static and dynamic loads in construction, infrastructure, and industrial applications. Manufactured from premium austenitic or duplex stainless steel grades, this section provides exceptional mechanical properties, corrosion resistance, and fire performance. Its rectangular profile offers superior bending strength, torsional rigidity, and efficient load distribution, making it an ideal choice for columns, beams, trusses, and heavy-duty support structures. Unlike standard decorative tubing, load bearing sections are produced with stricter material certifications and enhanced weld integrity.

Product Specifications
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 2.0 mm – 10.0 mm
Length 6m, 12m, or custom lengths up to 18m
Manufacturing Process Cold-formed welded or Hot-finished seamless
Heat Treatment Annealed after manufacturing
Surface Finish Mill finish, pickled, or primed
End Finish Plain ends or beveled ends
Chemical Composition (Typical Values, %)
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
Mechanical Properties (at Room Temperature)
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.

Section Properties (Example – 150×100×6mm – 304)
Property Value
Mass per meter 22.5 kg/m
Cross-sectional area 2,860 mm²
Moment of inertia (Ixx) 9.87 × 10⁶ mm⁴
Moment of inertia (Iyy) 5.12 × 10⁶ mm⁴
Section modulus (Wxx) 131.6 × 10³ mm³
Section modulus (Wyy) 68.3 × 10³ mm³
Radius of gyration (ix) 58.7 mm
Radius of gyration (iy) 42.3 mm
Plastic modulus (Zxx) 152.4 × 10³ mm³

Full section property tables available upon request for all sizes and grades.

Load Capacity Reference (304 – Simply Supported Beam)
Size (mm) Wall (mm) Span (m) Uniform Load (kN/m) Point Load (kN)
100×50×4 4.0 2.0 12.5 6.2
100×50×5 5.0 2.0 15.3 7.6
150×100×5 5.0 3.0 18.7 14.0
150×100×6 6.0 3.0 22.1 16.6
200×100×6 6.0 4.0 15.8 15.8
200×100×8 8.0 4.0 20.6 20.6

Values are indicative only. Final design per structural engineer. Contact us for detailed calculations.

Key Features

High Load Capacity – Engineered for significant static and dynamic loads

Superior Strength-to-Weight Ratio – Efficient material usage

Excellent Torsional Rigidity – Closed section resists twisting

Corrosion Resistance – No coating required for most environments

Fire Resistance – Maintains strength at elevated temperatures

Ductility – Absorbs energy without brittle failure

Long Service Life – 50+ years with minimal maintenance

100% Recyclable – Environmentally sustainable

Dimensional Tolerances (EN 10219-2)
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°
Structural Applications
Building Construction

Main structural columns

Primary and secondary beams

Roof trusses and rafters

Bracing members

Portal frame components

Mezzanine floor supports

Infrastructure

Bridge truss members

Pedestrian footbridge girders

Highway gantry supports

Railway platform structures

Transmission tower components

Industrial

Crane runway beams

Heavy equipment platforms

Conveyor support structures

Storage rack uprights

Machine bases and frames

Marine & Offshore

Offshore platform structural members

Dock and pier supports

Shipbuilding frames

Design Considerations
Factor Consideration
Buckling Rectangular sections offer good resistance; check slenderness ratio
Deflection Limit L/250 for floors; L/200 for roofs per building codes
Connection Design Welded or bolted connections; use stainless steel fasteners
Local Buckling Width-to-thickness ratios per EN 1993-1-4 or AISC Design Guide 27
Fire Protection Stainless steel often requires no additional fireproofing
Corrosion Allowance No additional thickness required for corrosion
Structural Grade Comparison
Property Carbon Steel (S355) Stainless 304 Stainless 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 (50 years) High Low Low Low
Typical applications Indoor, coated Indoor/outdoor Marine, chemical High-stress, offshore
Fabrication Guidelines
Process Recommendation
Cutting Band saw, plasma cutter, or abrasive wheel
Welding TIG (GTAW) or MIG (GMAW); use matching filler (ER308/ER316/ER2209)
Drilling Cobalt or carbide bits; use cutting fluid
Bolting Use stainless steel bolts (A4-80 grade)
Grinding Use dedicated stainless steel abrasives
Contact Us

For inquiries, technical datasheets, section property tables, or custom sizes, please contact our sales team.

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