Custom-Sized ASTM 316L/304L Stainless Square Tube | 321/2205 Duplex Pipes for Industrial Systems

High-Performance Stainless Steel Structural Tubing
Engineered for precision and durability, this ASTM-certified stainless steel square/rectangular tubing in 316L/304L grades delivers customizable solutions for gas systems and industrial frameworks.

Technical Specifications

Material Composition:
- 316L: Cr 16-18%, Ni 10-14%, Mo 2-3%
- 304L: Cr 18-20%, Ni 8-10.5%
Surface Quality: 120-grit polished finish (Ra ≤3.2μm)
Dimensional Accuracy: ±0.1% tolerance for critical alignment

Key Advantages

◆ Ultimate Customization:

Lengths: 0.5m to 12m (custom-cut with ±5mm precision)
Processing: Hot-rolled (3-120mm) / Cold-rolled (0.5-3mm)
◆ Corrosion Defense:
PREN Value: 316L=26.8 | 304L=19.5
Salt Spray Resistance: 480-1,500 hrs (ASTM B117)

Value-Added Services

[✓] CNC Rotary Bending (180° ±1° accuracy)
[✓] Laser Cutting (kerf width ≤0.2mm)
[✓] ASME IX-Certified Orbital Welding
[✓] Hydroforming for complex geometries

Logistics & Compliance

Packaging: Triple-layer seaworthy crates (60×40×40cm):
1. VCI anti-corrosion paper
2. 2mm PE waterproof coating
3. Steel-braced wooden frame
Delivery: 15-21 days (MOQ 1 ton, 5% discount on 10+ tons)
Certifications:
- ASTM A312/A789 (Pressure Systems)
- EN 10204 3.1 Material Traceability
- NACE MR0175 (Sour Gas Compliance)

Applications

✔️ High-pressure gas distribution networks
✔️ Offshore platform structural supports
✔️ Chemical plant pipe systems
✔️ Seismic-resistant building frameworks

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