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ISO-Certified galvanized pipe fittings | Global Quality Assurance

ISO-Certified galvanized pipe fittings | Global Quality Assurance

$420.00 SGD
$420.00 SGD
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ISO-Certified Galvanized Pipe Fittings | Global Quality Assurance

Product Specifications

Parameter Details
Zinc Coating 275–350g/m² (Z275–Z350), compliant with ISO 1461, ASTM A153, and EN 10240
Diameter Range 1/2" to 24" (15mm–600mm) – what is galvanized iron pipe: corrosion-resistant steel with zinc protection
Wall Thickness 2.0mm–25.4mm, suitable for high-pressure industrial and residential plumbing with galvanized pipe
Standards ISO 9001, ASTM A53, EN 10255, BS 1387, JIS G3444
Surface Finish Zero spangle, chromated (Cr6+-free), hot-dip galvanized with ≥85µm coating
Hardness 150–250 HB (Brinell hardness), ensuring structural integrity under mechanical stress
Thread Compatibility NPT, BSPT, DIN 2999 for global adaptability
Temperature Tolerance -40°C to 400°C, ideal for extreme environments

Technical Properties

Tensile & Bend Strength

  • Tensile Strength: Ranges from 350–550 MPa (ISO 1461), exceeding ASTM A53 Grade B requirements for industrial pipelines.
  • Bend Strength: Achieves 3T bend radius (3x pipe diameter) without cracking, validated through cold-forming tests for applications like structural frameworks and plumbing with galvanized pipe systems.

Weight Calculation

Weight (kg/m) = (OD – WT) × WT × 0.02466
Example: For a 4" OD pipe with 6mm wall thickness:
(114.3 – 6) × 6 × 0.02466 = 16.2 kg/m. Custom calculators provided for bulk orders.

Identification Marking

  • Laser-etched labels include:
    • Grade (e.g., S275JR, ASTM A106).
    • Zinc coating thickness (e.g., Z275).
    • ISO 9001 certification and mill origin.

Why Stainless Steel Corrodes?

While galvanized iron pipe resists rust via sacrificial zinc protection, stainless steel may corrode due to:

  1. Chloride Exposure: Coastal environments or de-icing salts induce pitting, especially in 304/316 grades.
  2. Mechanical Damage: Scratches or improper welding expose the base metal to oxidation.
  3. Galvanic Corrosion: Contact with dissimilar metals (e.g., copper) accelerates degradation.
  4. High-Temperature Stress: Prolonged exposure to >400°C destabilizes passive oxide layers.

Manufacturing Process

Stage Description
Material Prep Low-carbon steel (Q235B) pickled to remove oxides, ensuring optimal zinc adhesion.
Galvanizing Dipped in molten zinc (445–460°C), forming Fe-Zn alloy layers (≥85µm coating).
Threading CNC-machined threads (NPT/BSPT) for leak-proof connections in plumbing with galvanized pipe.
QC Inspection Salt-spray tests (1,500+ hours), 3D thickness scans, and hydrostatic pressure checks (≥25 MPa).

Maintenance & Upgrades

  • Replacing galvanized pipes with PEX:
    • Benefits: PEX offers flexibility, freeze resistance, and faster installation.
    • Considerations: Use dielectric unions to prevent galvanic corrosion when connecting PEX to galvanized iron pipe.
  • For existing systems: Epoxy lining or zinc-rich coatings extend lifespan by 20–30 years.

Why Choose Our Galvanized Pipe Fittings?

  1. Global Compliance: Certified to ISO 9001, ASTM, and EN standards for seamless integration into international projects.
  2. Custom Solutions: Tailored threading, lengths, and packaging (steel pallets or bulk) for diverse needs.
  3. Eco-Friendly: Chromium-free treatments and 100% recyclable materials align with green regulations.
  4. Cost Efficiency: MOQ from 10 tons, FOB/CIF terms, and 24/7 technical support.

Keywords Integration:

  • Learn what is galvanized iron pipe and its advantages over traditional steel.
  • Explore seamless transitions by replacing galvanized pipes with PEX in modern plumbing systems.
  • Trusted for plumbing with galvanized pipe in HVAC, water supply, and industrial networks.

Why Our Stainless Steel Solutions Excel

Positioned at the end as requested:

  • Decades of Expertise: Over 30 years in steel manufacturing, serving 100+ countries with ISO 9001 and SGS certifications.
  • Superior Corrosion Resistance: 316L/2205 duplex grades resist pitting and chloride stress corrosion.
  • Sustainability: 95% end-of-life stainless steel is recycled, reducing environmental impact.
  • Custom Fabrication: CAD-driven designs for precision-fit components in aerospace, marine, and chemical sectors.
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