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Corrosion-Resistant 316L/2205 Duplex Stainless Square Pipe | ASTM-Certified Structural Tubing

Corrosion-Resistant 316L/2205 Duplex Stainless Square Pipe | ASTM-Certified Structural Tubing

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High-Performance Stainless Steel Structural Tubing
Engineered for demanding construction and gas systems, this ASTM-certified seamless square/rectangular tubing in 316L/304L grades delivers unmatched durability with a 120-mesh polished surface (Ra ≤3.2μm) and ±0.1% dimensional tolerance.


Technical Specifications

  • Material Excellence:
    • PREN Values: 316L=26.8 | 304L=19.5
    • Temperature Range: -40°C to 850°C operational capacity
    • Salt Spray Resistance: 480-1,500 hours (ASTM B117)
  • Processing Flexibility:
    • Hot-Rolled (3-120mm) for structural integrity
    • Cold-Rolled (0.5-3mm) for precision applications

Key Advantages

◆ ​Durability Optimized

  • Seamless construction eliminates corrosion-prone welds
  • Yield Strength: 316L=220 MPa | 304L=170 MPa
    ◆ ​Custom Fabrication:
    [✓] CNC Bending (180° precision)
    [✓] Laser Cutting (±0.2mm kerf accuracy)
    [✓] ASME-Certified Orbital Welding

Logistics & Compliance

  • Packaging: Triple-layer seaworthy crates (60×40×40cm) with VCI paper and PE coating
  • Delivery: 15-21 days for custom lengths (MOQ 1 ton, bulk discounts available)
  • Certifications:
    • ASTM A312/A789 (Pressure Systems)
    • EN 10204 3.1 Material Traceability
    • NACE MR0175 (Sour Gas Environments)

Applications

✔️ High-pressure gas distribution networks
✔️ Seismic-resistant building frameworks
✔️ Coastal infrastructure reinforcement
✔️ Chemical plant structural supports

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