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Precision galvanized pipe | Seamless Round Steel Manufacturing

Precision galvanized pipe | Seamless Round Steel Manufacturing

$560.00 SGD
$560.00 SGD
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Precision Galvanized Pipe | Seamless Round Steel Manufacturing

Product Specifications

Attribute Details
Material Low-Carbon Steel (Q195, Q215, Q235, Q345)
Standards ASTM A53, BS1387, EN10217, ISO 9001, API 5L
Diameter Range 1/2" to 6" (20 mm to 168.3 mm)
Wall Thickness 0.5 mm to 4.5 mm
Length 5.8 m to 12 m (Customizable)
Surface Treatment Hot-Dip Galvanized (Zinc Coating: 60–275 g/m²)
Hardness (Rockwell B) 70–80 HRB
Tensile Strength 330–500 MPa
Yield Strength 195–345 MPa
Thread Type NPT, BSPT, ISO 7/1 (Customizable)
Applications Galvanized pipe water systems, structural supports, HVAC, irrigation

Key Properties & Manufacturing Process

  1. Hot-Dip Galvanizing:

    • Pickling & Fluxing: Removes impurities and ensures optimal zinc adhesion.
    • Molten Zinc Immersion: Pipes are dipped at 450–460°C, forming a corrosion-resistant zinc-iron alloy layer.
    • Cooling & Inspection: Air-cooled and tested for coating uniformity (ASTM A123 standards).

  2. Seamless Manufacturing:

    • Produced via hot rolling or cold drawing from steel billets, eliminating weld seams for enhanced strength.
    • Ideal for high-pressure applications due to uniform wall thickness.

  3. Threading & Customization:

    • Precision-cut threads using galvanized pipe replacement-compatible tools for leak-proof connections.
    • Custom hole drilling, grooving, and surface treatments (e.g., red paint RAL3000) available.

Technical Insights

Tensile Strength

Tensile strength (330–500 MPa) measures the maximum stress a pipe withstands before failure. Our pipes exceed ASTM A53 requirements, ensuring reliability in galvanized pipe water systems and structural frameworks.

 

Bending Strength

The zinc coating enhances flexibility, allowing bending up to 180° without cracking. Cold bending is recommended for radii ≥4× pipe diameter to maintain integrity.

 

Weight Calculation

Use the formula:

Example: For a 2" pipe (OD: 60.3 mm, WT: 3.6 mm):

 

Identification Marking

Each pipe is stamped with:

  • Manufacturer’s logo
  • ASTM/BS standard (e.g., ASTM A106 Gr.B)
  • Size (OD × WT) and batch number.

Why Stainless Steel Can Rust?

While stainless steel resists corrosion, improper handling or environmental factors may cause rust:

  1. Chloride Exposure: Saltwater or chlorine degrades the chromium oxide layer.
  2. Mechanical Damage: Scratches expose the base metal to oxidation.
  3. Low Chromium Content: Grades with <10.5% chromium lack sufficient corrosion resistance.
  4. Galvanic Corrosion: Contact with carbon steel accelerates rusting.

Applications & Compatibility

  • Water Systems: Ideal for galvanized pipe water supply due to hygienic, non-porous surfaces.
  • Structural Use: Supports up to 300 kg in frameworks, roofing, and scaffolding.
  • Replacement Solutions: Compatible with galvanized pipe replacement projects for aging plumbing.
  • Custom Sizes: Available in galvanized pipe sizes from 1/2" to 6", tailored to project needs.

Maintenance & Installation Tips

  1. Cutting Guidance: Use carbide-tipped blades or reciprocating saws for how to cut galvanized steel pipe.
  2. Thread Sealing: Apply Teflon tape or pipe dope to prevent leaks in threaded connections.
  3. Corrosion Prevention: Regular inspections and cleaning with pH-neutral solutions extend lifespan.

Why Choose Our Stainless Steel?

  1. Superior Corrosion Resistance: Chromium-rich alloys (e.g., 316L) resist rust in harsh environments.
  2. Hygienic & Safe: Non-porous surfaces prevent bacterial growth, critical for galvanized pipe water systems.
  3. Durability: Withstands extreme temperatures (-40°C to 120°C) and high-pressure applications.
  4. Sustainability: 100% recyclable and compliant with environmental regulations.
  5. Certified Quality: Meets ASTM A269 and ISO 9001 standards, ensuring reliability.
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