Bulk Order 316L/304L Stainless Square Tube | Custom Lengths & Wholesale Pricing for Industrial Use

Premium Stainless Steel Structural Tubing
Engineered for industrial and construction applications, this ASTM-certified stainless square/rectangular tubing in 316L/304L/321/2205 grades combines precision manufacturing with corrosion resistance for demanding environments.

​Technical Specifications

• ​Material Composition:
  • 316L: Cr 16-18%, Ni 10-14%, Mo 2-3%
  • 2205 Duplex: PREN 35.6, Yield Strength ≥550 MPa
• ​Dimensional Accuracy: ±0.1% tolerance with 120-grit finish (Ra ≤3.2μm)
• ​Temperature Range: -40°C to 850°C operational capacity

​Key Features

◆ ​Custom Manufacturing

• Hot/Cold Rolled Options:
  • Hot: 3-120mm thickness for structural frameworks
  • Cold: 0.5-3mm precision for architectural elements
• Processing Services:
  [✓] CNC Bending (180° precision)
  [✓] Laser Cutting (kerf ≤0.2mm)
  [✓] ASME IX-Compliant Welding

◆ ​Certified Performance

• 1,500+ hrs salt spray resistance (ASTM B117)
• EN 10204 3.1 & NACE MR0175 compliance

​Logistics & Value

• ​Packaging: Triple-layer seaworthy crates (60×40×40cm) with VCI paper + PE coating
• ​Delivery: 15-21 days for custom orders (MOQ 1 ton, 5% bulk discount for 10+ tons)
• ​Pricing: Transparent weight-based invoicing with export documentation

​Applications

✔️ Offshore platform structural supports
✔️ Chemical processing plant pipe systems
✔️ Coastal bridge reinforcement frameworks
✔️ High-temperature exhaust ducting