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Low-Maintenance galvanized pipe | Durable Plumbing & Structural Use

Low-Maintenance galvanized pipe | Durable Plumbing & Structural Use

$580.00 SGD
$580.00 SGD
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Low-Maintenance Galvanized Pipe | Durable Plumbing & Structural Use

Product Overview

Our hot-dip galvanized pipes are engineered for longevity and resistance to galvanized pipe corrosion, making them ideal for plumbing, structural frameworks, and galvanized pipe for gas systems. With a robust zinc coating (≥130 g/m²) applied via ASTM A123-compliant processes, these pipes withstand harsh environments, including high humidity, saline air, and industrial pollutants. Suitable for municipal water networks, HVAC systems, and galvanized pipe repair projects, our products meet ISO 1461, ASTM A53, and EN 10255 standards.

 

Technical Specifications

Category Details
Material Q235B Carbon Steel (Grade B) / EN-GJS-500-7 (Ductile Iron)
Coating Hot-Dip Galvanized (Zinc ≥130 g/m²), Optional Epoxy/PE Inner Lining (≥250μm)
Diameter Range 1/2"–6" (±1.0%), Customizable up to 24"
Wall Thickness 0.5–2.5 mm (±10%)
Length Standard 6m (±50mm), Customizable up to 12m
Hardness 130–180 HBW (Brinell)
Pressure Rating PN16/PN25 (25 BAR/363 PSI)
Temperature Range -20°C to 200°C
Surface Finish Smooth Spangle (EN ISO 1461) / Zero-Spangle (ASTM A123)

Key Properties

  1. Corrosion Resistance
    The zinc layer acts as a sacrificial barrier against galvanized pipe corrosion, protecting the steel substrate from oxidation and rust. For gas systems (galvanized pipe for gas), inner epoxy linings (≥250μm) prevent sulfide-induced degradation.

  2. Mechanical Strength

    • Tensile Strength: ≥500 MPa (ISO 6892-1)
    • Yield Strength: ≥300 MPa
    • Bend Resistance: Withstands 90° bends without cracking (EN 10242).
    • Impact Toughness: 27 J at -20°C (ASTM A370).

  3. Ease of Repair
    Damaged coatings can be restored using galvanized pipe repair methods like zinc-rich paints or thermal spray coatings, complying with ASTM A780.

     

Weight Calculation

Calculate pipe weight using:

Where:

  •  = Outer Diameter (mm)
  •  = Wall Thickness (mm)
  •  = Length (m)
    Example: A 2" Schedule 40 pipe (OD=60.3mm, WT=3.9mm, 6m length) weighs ≈16.2 kg.

Marking & Identification

Pipes are laser-etched with:

  • Manufacturer’s logo
  • ASTM/EN standard (e.g., ASTM A53)
  • Diameter, wall thickness, and batch number
  • Coating type (e.g., HDG for hot-dip galvanized).

Why Stainless Steel Rusts?

While stainless steel is corrosion-resistant, rust can occur due to:

  1. Damaged Passive Layer: Scratches or abrasive cleaning disrupt the chromium oxide film.
  2. Chloride Exposure: Coastal or de-icing environments cause pitting corrosion.
  3. Galvanic Corrosion: Contact with carbon steel or copper triggers electrochemical degradation.
  4. High-Temperature Oxidation: Prolonged exposure above 400°C weakens the alloy.

Applications

  • Gas Distribution: Galvanized pipe for gas systems with NSF 61 certification for methane/LPG.
  • Plumbing: Corrosion-free water supply lines with ≥50-year lifespan.
  • Structural Support: High-strength frameworks for bridges, warehouses, and fencing.
  • Repair Kits: Galvanized pipe repair solutions for retrofitting aging pipelines.

Why Choose Our Stainless Steel?

  1. Superior Durability: Grade 304/316L stainless steel with ≥90% nodularity and anti-UV coatings.
  2. Zero Lead Content: Certified RoHS/NSF 61 compliance for potable water safety.
  3. Custom Solutions: Tailored dimensions (e.g., galvanized pipe near me rapid delivery) and electropolished finishes.
  4. Eco-Friendly: 100% recyclable, manufactured via low-carbon processes.
  5. Lifetime Warranty: Backed by third-party inspections (SGS/BV) and 24/7 technical support.
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