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Zinc-Aluminum galvanized pipe fittings | Enhanced Corrosion Shield

Zinc-Aluminum galvanized pipe fittings | Enhanced Corrosion Shield

$420.00 SGD
$420.00 SGD
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Zinc-Aluminum Galvanized Pipe Fittings | Enhanced Corrosion Shield

Product Specifications

Parameter Details
Zinc-Aluminum Coating 55% Aluminum, 43.5% Zinc, 1.5% Silicon (ZAS coating per ASTM A1042), providing 3x longer lifespan than standard galvanized fittings
Diameter Range 1/2" to 12" (15–300mm) – menards galvanized pipe compatibility for HVAC, plumbing, and structural projects
Wall Thickness 2.0–20.0mm, optimized for high-pressure systems (≤25 MPa) and cut galvanized steel pipe applications
Standards ASTM A53, EN 10346, ISO 1461, AS/NZS 2728, BS 1387
Surface Finish Spangle-free chromate passivation (Cr3+), hot-dip coated with ≥100µm ZAS layer
Hardness 180–280 HB (Brinell hardness), validated via Rockwell C tests for mechanical stress resistance
Thread Compatibility NPT, BSPT, ISO7/1 for seamless fitting galvanized pipe connections
Temperature Tolerance -50°C to 550°C, ideal for extreme industrial and marine environments

Technical Properties

Tensile & Bend Strength

  • Tensile Strength: Ranges from 350–600 MPa (ISO 1461), exceeding ASTM A53 Grade C requirements for hydraulic and gas pipelines. Validated through Charpy V-notch impact tests at -30°C.
  • Bend Strength: Achieves 4T bend radius (4x pipe diameter) without cracking, proven in cold-forming tests for cut galvanized steel pipe frameworks in offshore rigs.

Weight Calculation

Weight (kg/m) = (OD – WT) × WT × 0.02466
Example: For an 8" OD pipe with 10mm wall thickness:
(219.1 – 10) × 10 × 0.02466 = 51.8 kg/m. Custom calculators provided for bulk orders.

Identification Marking

  • Laser-etched labels include:
    • Grade (e.g., ZA55, ASTM A106).
    • Coating composition (e.g., 55Al-43.5Zn-1.5Si).
    • Compliance marks (ISO 1461, EN 10346).

Why Stainless Steel Corrodes?

While Zinc-Aluminum galvanized fittings resist rust via dual sacrificial and barrier protection, stainless steel may corrode due to:

  1. Chloride Exposure: Coastal or de-icing salt environments induce pitting in 304/316 grades, penetrating passive oxide layers.
  2. Mechanical Damage: Scratches from cut galvanized steel pipe tools or improper welding expose base metal to oxidation.
  3. Galvanic Corrosion: Contact with copper or brass accelerates degradation in mixed-metal systems.
  4. High-Temperature Stress: Prolonged exposure >400°C destabilizes chromium oxide layers, leading to intergranular corrosion.

Manufacturing Process

Stage Description
Material Prep Low-carbon steel (Q235B) pickled to remove oxides, ensuring optimal ZAS adhesion.
Hot-Dip Coating Dipped in molten ZAS alloy (600–620°C), forming Fe-Al-Zn intermetallic layers.
Threading CNC-machined threads (NPT/BSPT) for leak-proof fitting galvanized pipe systems.
QC Inspection Salt-spray tests (3,000+ hours), 3D coating scans, and hydrostatic pressure checks (≥30 MPa).

Applications & Maintenance

  • Industrial Plumbing: Trusted for menards galvanized pipe networks in chemical plants, resisting H2S and CO2 corrosion.
  • Marine Infrastructure: ZAS-coated culverts and cut galvanized steel pipe frameworks endure saltwater splash zones for 50+ years.
  • Tool Compatibility: Use cut galvanized steel pipe tools like RIDGID 32915 or Milwaukee 48-22-3025 for clean, burr-free cuts.

Keywords Integration:

  • Precision fitting galvanized pipe solutions for HVAC and fire suppression systems.
  • Partnered with menards galvanized pipe suppliers for seamless North American distribution.
  • Optimized workflows for cut galvanized steel pipe in construction and shipbuilding.

Why Our Stainless Steel Solutions Excel

Positioned at the end as requested:

  1. Superior Hygiene: 316Ti grades meet NSF/EN 10312 for pharmaceutical and food-grade pipelines.
  2. Decades of Expertise: ISO 9001-certified production with 30+ years in alloy R&D.
  3. Sustainability: 98% recyclable materials and zero hexavalent chromium coatings align with EU REACH.
  4. Custom Fabrication: CAD-driven designs for aerospace heat exchangers and desalination plants.
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