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Stainless Steel Pipe | 304L/316L Solar Energy Tubing

Stainless Steel Pipe | 304L/316L Solar Energy Tubing

$1,710.00 SGD
$1,710.00 SGD
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Stainless Steel Pipe | 304L/316L Solar Energy Tubing

Product Specifications

Dimension/Property Specification
Material Grade 304L / 316L (Low Carbon, High Corrosion Resistance)
Outer Diameter (OD) 6mm–2500mm (Customizable per schedule 80 stainless steel pipe standards)
Wall Thickness 0.6mm–40mm (Compliant with stainless steel pipe and fittings schedules)
Length Up to 12m (Standard) / Custom Lengths (Up to 20m)
Production Method Seamless (Cold/Hot Rolled) or Welded (TIG Welded for precision)
Surface Finish Electropolished (Ra ≤0.4μm), Mirror, Brushed (2B), or Passivated
Hardness Rockwell B: 70–95
Temperature Resistance -40°C to 925°C (Continuous Use)

Mechanical Properties

Property Value
Ultimate Tensile Strength 485–621 MPa (304L: 485 MPa; 316L: 515 MPa)
Yield Strength 170–290 MPa (304L: 170 MPa; 316L: 290 MPa)
Elongation (%) 30–55% (High Ductility)
Density 8.0 g/cm³

Chemical Composition

Element 304L (%) 316L (%)
Chromium (Cr) 18.0–20.0 16.0–18.0
Nickel (Ni) 8.0–12.0 10.0–14.0
Molybdenum (Mo) — 2.0–3.0
Carbon (C) ≤0.03 ≤0.03

Key Features & Applications

  1. Solar Energy Optimization:

    • 316L’s molybdenum content enhances resistance to chloride-induced corrosion, ideal for solar thermal systems and coastal installations.
    • 304L offers cost-effective performance for photovoltaic cooling loops and structural supports.

  2. Hydraulic Compatibility:

    • Precision-engineered for integration with stainless steel hydraulic pipe fittings, ensuring leak-free connections in high-pressure solar pump systems.
    • Electropolished inner surfaces minimize friction and energy loss in heat transfer fluids.

  3. Durability & Longevity:

    • Compliant with schedule 80 stainless steel pipe standards for high-pressure applications.
    • Seamless variants eliminate weak points, while welded options use TIG welding for joint integrity.

  4. Certifications:

    • ASTM A312, ASME SA213, EN10216-5, and ISO 9001 certified with full material traceability.

Technical Insights

Tensile & Bend Strength

304L and 316L stainless steel tubes exhibit exceptional tensile strength (485–621 MPa) and bend resistance due to their austenitic structure and cold-working adaptability. The high elongation (30–55%) allows bending and forming without cracking, critical for solar panel mounting frameworks. Post-weld annealing eliminates carbide precipitation risks, preserving corrosion resistance in welded joints.

 

Weight Calculation Formula

Calculate the weight of solar tubing using:

Example: A 100mm OD pipe with 5mm wall thickness weighs:
.

 

Marking & Identification

Pipes are laser-etched with:

  • Grade (304L/316L)
  • ASTM/ASME Standard
  • OD, Wall Thickness, Heat Number, and compliance with stainless steel pipe and fittings schedules.

Why Stainless Steel Can Rust?

Despite its corrosion resistance, 304L/316L may corrode under extreme conditions:

  • Chloride Exposure: Prolonged contact with seawater or de-icing salts degrades the passive chromium oxide layer.
  • Mechanical Damage: Scratches or improper welding expose iron to oxidation.
  • Galvanic Corrosion: Contact with dissimilar metals (e.g., carbon steel) in electrolytic environments.
    Preventive measures include passivation, electropolishing, and using compatible stainless steel hydraulic pipe fittings.

Why Choose Our Stainless Steel Solar Tubing?

  1. Certified Excellence: ISO 9001, ASTM A312, and solar industry-specific compliance.
  2. Custom Solutions: Tailored OD, wall thickness, and schedule 80 stainless steel pipe specifications.
  3. Global Expertise: Trusted by solar farms and renewable energy projects since 2015.
  4. Rapid Delivery: 15-day lead time for standard sizes; 5-day stock availability.
  5. Competitive Pricing: Factory-direct stainless steel pipe and fittings with bulk-order discounts.
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