En 1.4462 Square Tube For Sale
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What is EN 1.4462 Stainless Steel Square Tube?
EN 1.4462 (UNS S32205/S31803, X2CrNiMoN22-5-3, AISI 2205) is a high-quality duplex stainless steel square tube with a balanced 50-50 ferritic-austenitic microstructure, conforming to standards such as EN 10219-1/EN 10216-5 (welded and seamless) and ASTM A790/A789.
EN 1.4462 stainless steel square tubes feature a minimum yield strength of 450 MPa, tensile strength ranging from 620-880 MPa, elongation ≥ 25%, impact work ≥ 60 J at 20°C, and hardness ≤ 290 HB (solution annealed state). The strength of EN 1.4462 is twice that of 304/316L austenitic stainless steels while maintaining excellent corrosion resistance. The pitting resistance equivalent number (PREN) is between 32-36, making it highly suitable for chloride-rich environments (up to 20,000 ppm Cl⁻).
GNEE supplies EN 1.4462 stainless steel square tubes, with size range: outer dimensions from 10×10mm to 200×200mm, wall thickness from 0.8-12.0mm, length from 3-12m or customized lengths available upon request. Seamless (cold drawn/hot rolled) or welded (ERW/TIG) square tubes are available. Surface finishes include pickling, bright annealing, or polishing (Ra ≤0.8μm).
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EN 1.4462 Stainless Steel Square Tube Specification
| Specification | |
|---|---|
| Standard | ASTM A240, ASTM A276, ASTM A479, ASTM A790, ASTM A928 |
| Grade | 1.4462, 318S13, S32205, X2CrNiMoN22-5-3 |
| Length | 2 m - 12 m (6.6 - 40 ft), Customized |
| Outer Diameter (OD) | Customized, Pipe: 6 mm - 600 mm (0.24 - 24 in) |
| Wall Thickness (WT) | Customized, Pipe: 0.5 mm - 50 mm (0.02 - 2 in) |
| Thickness | Customized, Plate: 5 mm - 150 mm (0.2 - 6 in), Sheet: 0.5 mm - 5 mm (0.02 - 0.2 in) |
| Full Width | Customized, Plate: 1000 mm - 3000 mm (39.37 - 118.11 in), Sheet: 1000 mm - 2000 mm (39.37 - 78.74 in) |
| Diameter | Bar: 6 mm - 600 mm (0.24 - 24 in), Customized |
| Shape | Customized, etc., Flat, Oval, Pipe & Bar: Round, Rectangular, Square |
| Surface Finish | BA, Black, Customized, No. 2D, No.1, No.4, Pickled, Polished |
Key Applications of EN 1.4462 Square Tubes:
Chemical Industry: Used in piping systems, reactors, and heat exchangers due to their excellent resistance to acidic chemicals and corrosive environments.
Marine and Offshore: Ideal for offshore oil rigs, shipbuilding, and marine infrastructure, where they are exposed to harsh seawater conditions.
Construction & Architecture: Used in architectural structures and support systems due to their high strength and aesthetic appeal.
EN 1.4462 Square Tube Price Per Kg
The price of EN 1.4462 (UNS S32205/S31803, AISI 2205) duplex stainless steel square tubes is US$5.2-6.8 per kilogram (FOB China, December 2025). Seamless tubes (10×10-100×100 mm, wall thickness 1.5-8.0 mm) are priced higher (US$6.0-6.8/kg), while welded ERW/TIG tubes (10×10-200×200 mm, wall thickness 0.8-12.0 mm) are priced at US$5.2-6.0/kg.
| Product Type | EN 1.4462 Square Tube Price (per kg) |
|---|---|
| Square Tube (20mm x 20mm) | $5.50 - $7.00 |
| Square Tube (40mm x 40mm) | $6.00 - $7.50 |
| Square Tube (60mm x 60mm) | $7.50 - $9.00 |
| Square Tube (80mm x 80mm) | $8.00 - $9.50 |
| Square Tube (Custom Sizes) | $7.50 - $10.00 |
2205 vs. 316L Stainless Steel: Cost
Compared to 316L stainless steel square tubing (US$3.2-4.0/kg), the price premium of 2205 stainless steel stems from its 21.0-23.0% chromium content, 2.5-3.5% molybdenum content (PREN 32-36), and twice the yield strength (≥450 MPa) in harsh chloride-rich environments.
GNEE provides factory inspection certificates (MTC) with complete chemical/mechanical performance data, and third-party certification services (SGS, BV, TUV) are available. Products are packaged with standard export packaging (anti-rust oil + waterproof paper + PVC film + steel strapping + wooden pallets). The minimum order quantity (MOQ) is 1 ton, and the delivery time for stock orders is 7-15 days.








