Duplex 2205 Stainless Steel i Beams for Construction
Certification：ISO, CE
Shape：H Shape I Shape T Shape
Technique：Hot Rolled
Surface Treatment：No.1, Ba, 2b, 2D, No.4 or Accord
Sample：Available
Processing Service：Welding, Punching, Cutting, Bending, Decoiling
Delivery Time：7-15 Days
Application：Construction, Automotive Industry, Household
Specification：According to Customer′s Requirement
Best Duplex Steel Suppliers for Construction
In construction projects, selecting Duplex 2205 Stainless Steel I Beams is crucial to ensuring structural strength, corrosion resistance, and long-term stability. GNEE provides high-performance duplex 2205 (S32205/S31803) I-beams compliant with ASTM A276/A484 standards, specifically designed for locations where structural failure is intolerable, such as marine, bridge, and chemical construction projects.
The Duplex 2205 Structural Steel Beams we supply adopt advanced laser welding technology to achieve 100% full penetration welding, which is verified by 100% radiographic/ultrasonic non-destructive testing to ensure the integrity of the weld seam is consistent with the base metal. The Duplex 2205 Steel Beams for Building have a PREN value as high as 34-36, maintaining rust-free performance even in high-chloride marine environments. With a yield strength of up to ≥450 MPa, the I-beams are more than twice as strong as 316L, enabling a 20-30% reduction in material weight and overall project cost without compromising safety.
We offer Duplex 2205 I-beams in a wide range of specifications, with sizes ranging from 100mm to 1000mm, ensuring they can meet your diverse design requirements. All products are manufactured with strict control over processing accuracy, featuring a smooth and flawless surface. They undergo pickling or sandblasting treatment to ensure no oxidation or residual grease on the surface, avoiding the formation of corrosion sources and maximizing service life.
2205 High Alloy Stainless Steel Beams Specification
| Grade | Duplex 2205 (UNS S32205 / S31803) |
| Standard | ASTM A276 / A479, EN 10088-3, ASME SA276 / SA479 |
| Material Type | Hot Rolled or Laser Welded Duplex Stainless Steel |
| Shape Options | H-Beam, I-Beam, Channel (C), Angle (L), Custom Profiles |
| Available Sizes | Web Height: 100–600 mm Flange Width: 50–300 mm Thickness: 5–25 mm |
| Length | 3000 mm – 12000 mm (Custom lengths available) |
| Surface Finish | Hot Rolled, Pickled & Descaled, Shot Blasted, Brushed |
| Yield Strength (Rp0.2) | ≥ 450 MPa |
| Tensile Strength (Rm) | 620–880 MPa |
| Elongation | ≥ 25% |
| Hardness (Brinell) | ≤ 290 HBW |
| Density | 7.80 g/cm³ |
Is Duplex 2205 better than 316L?
Yes, Duplex 2205 stainless steel has significantly higher strength than 316L and offers much better resistance to chloride-induced corrosion and stress corrosion cracking. With a yield strength of up to 450 MPa-roughly twice that of standard austenitic stainless steels like 316L-and tensile strength exceeding 620 MPa, Duplex 2205 undergoes minimal deformation under heavy loads. It is especially well-suited for demanding structural applications such as large industrial buildings and bridges. In seawater desalination systems, its service life can be 2–3 times longer than that of 316L.
Can Duplex 2205 H-beams be welded?
Yes. Duplex 2205 H-beams are weldable. For optimal performance, ER2209 welding wire is recommended, achieving up to 95% of the base metal strength. No post-weld heat treatment is typically required. For fabrication, the minimum cold bending radius is about 6× the material thickness, and laser cutting precision can reach ±0.3 mm, ensuring excellent dimensional accuracy.
What's the price of Duplex 2205 stainless steel beams per kg?
Prices typically range from $6.50 to $9.50 USD per kilogram, depending on the beam size, surface finish, and order quantity. Please contact us directly for the most accurate and up-to-date quotation based on your specific requirements.
Duplex 2205 Stainless Steel i Beams Application
2205 Marine Grade Steel Beams for Construction
2205 Corrosion Resistant Steel for Building Structures
2205 Duplex Stainless Steel for Offshore Construction
2205 Duplex Steel I Beams for Industrial Use
Duplex 2205 I Beams for Coastal Building
2205 Stainless Steel Beams for High-Rise Buildings
2205 Structural Stainless Steel for Harsh Environments
In addition, we also provide 2205 SS l-Beams, 2205 SS H-Beams, 2205 SS T-Shaped Beams, 2205 stainless steel w beams.
GNEE Stainless Steel Factory
We conduct 100% radiographic (RT) or ultrasonic (UT) testing to ensure that all welds are free of porosity and cracks. Each batch comes with an EN 10204 3.1 quality certificate, containing actual impact test data.
Duplex 2205 I Beam Supplier
GNEE possesses its own precision laser welding and hot rolling production lines, enabling delivery times to be reduced to 15-25 days, more than 30% faster than the industry average. Leveraging our logistics advantages located in key ports such as Tianjin, Qingdao, and Shanghai, we promise to provide complete logistics solutions and real-time cargo tracking forecasts within 24 hours, helping you deliver your global construction projects on time.
GNEE Product Transportation
The product surface is wrapped with multiple layers of reinforced waterproof plastic film and impact-resistant fiber cloth, and rigid corner protectors are added to the edges of the I-beams to prevent bumps or scratches during container transportation. For bulk cargo transportation, we additionally provide salt spray protection or special waterproof woven bags for securing.
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