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ASTM B36.19 Hot Rolled 316L/304L Stainless Square Pipe | Heavy-Duty Structural Tubing Stock
ASTM B36.19 Hot Rolled 316L/304L Stainless Square Pipe | Heavy-Duty Structural Tubing Stock
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High-Performance Stainless Steel Square Tubing
Engineered for demanding gas systems and structural applications, this ASTM-compliant hot-rolled square tube in 316L/304L grades delivers exceptional durability across temperature extremes (-20°C to 850°C).
Key Features:
◆ Material Superiority
- 300-series chromium-nickel alloy composition
- Pitting Resistance Equivalent Number (PREN): 304L=19.5 | 316L=26.8
- Hot-rolled finish with 120-grit surface (Ra ≤3.2μm)
Technical Specifications:
- Wall Thickness: 1.5-12mm (±0.3% tolerance)
- Standard Lengths: 6m (Custom cuts up to 12m available)
- Pressure Rating: 8.6-34.5MPa (Varies by gauge)
- MOQ: 1 Metric Ton
Processing Services:
[✓] CNC Rotary Draw Bending (180° capability)
[✓] Plasma/Laser Cutting (±0.5mm accuracy)
[✓] Orbital TIG Welding (ASME Section IX compliant)
[✓] Hydroforming for complex geometries
Logistics & Value:
- Triple-layer seaworthy packaging:
- VCI anti-corrosion paper wrap
- 2mm PE waterproof coating
- Steel-reinforced wooden crate (60×40×40cm)
- Bulk order discounts: 3-5% price reduction for 10+ ton shipments
- Global maritime compliance: IMDG/ISO 16104 certified
Certifications & Compliance:
- ASTM A312/A778 (Chemical & mechanical properties)
- EN 10204 3.1 Material Test Certificate
- NACE MR0175 for sour gas environments
Applications:
- LNG pipeline support systems
- Petrochemical plant structural frameworks
- High-temperature exhaust ducting
- Offshore platform walkways




