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Industrial-Grade galvanized pipe fittings | Precision-Engineered Zinc Coating
Industrial-Grade galvanized pipe fittings | Precision-Engineered Zinc Coating
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Industrial-Grade Galvanized Pipe Fittings | Precision-Engineered Zinc Coating
Durability Redefined. Corrosion Resistance Guaranteed.
Product Specifications
| Parameter | Details |
|---|---|
| Material | Carbon Steel (Q235, Q345) with Hot-Dip Galvanized or Pre-Galvanized Coating |
| Standards | ASTM A53, BS 1387, EN 10255, ISO 65, JIS G3444 |
| Outer Diameter (OD) | 15 mm – 610 mm (menards galvanized pipe compatibility for US markets) |
| Wall Thickness | 0.5 mm – 18 mm |
| Zinc Coating | 60–600 g/m² (Hot-Dip: 200–600 g/m²; Pre-Galvanized: 40–80 g/m²) |
| Hardness (Rockwell) | 70–85 HRB (Grade-Dependent, Enhanced for Structural Integrity) |
| Pressure Rating | Up to 2.5 MPa (Ideal for Industrial Plumbing and HVAC Systems) |
| Surface Finish | Smooth Zinc Layer; Optional 3PE/3PP Anti-Corrosion Coating |
Key Features & Innovations
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Advanced Zinc Coating Technology
- Hot-Dip Galvanizing: Immersed in 450°C molten zinc to form a robust zinc-iron alloy layer (Γ, δ1, ζ phases) for unmatched corrosion resistance.
- Pre-Galvanized Process: Electroplated zinc coating (40–80 g/m²) for lightweight frameworks like galvanized pipe shelves.
- Passivation-Free Design: Eliminates chromate treatments to ensure optimal adhesion for painting galvanized pipe.
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Superior Mechanical Performance
- Tensile Strength: 330–550 MPa (ASTM A53 Grade B), withstands high-pressure industrial fluids.
- Bending Strength: Deforms up to 180° without cracking (EN 10219), ideal for complex installations.
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Global Logistics & Customization
- Fast Shipping: Partnered with 50+ ports for 7–15 day delivery (compatible with menards galvanized pipe supply chains).
- Tailored Solutions: Cut-to-length, threaded ends, or grooved joints for HVAC, plumbing, and structural projects.
Technical Insights
Tensile & Bending Strength
Our galvanized fittings undergo rigorous testing to exceed ASTM/ISO standards. The tensile strength range (330–550 MPa) ensures resistance to internal pressure and dynamic loads in industrial settings. For bending applications, the zinc coating’s ductility prevents micro-cracks, even under repeated stress.
Identification & Marking
- Laser Etching: Permanent labels include material grade (Q235/Q345), OD, WT, and certification codes (ISO 9001, CE).
- Color Coding: Optional PVC coatings (blue for water, red for gas) simplify system identification.
Weight Calculation Formula
Weight per meter (kg/m) = (OD – WT) × WT × 0.02466
Example: For a 100 mm OD pipe with 3 mm WT:
(100 – 3) × 3 × 0.02466 = 7.23 kg/m.
Why Does Stainless Steel Rust?
While stainless steel resists corrosion via its chromium oxide layer (≥10.5% Cr), exposure to chlorides (e.g., seawater) or acidic environments can cause pitting. In contrast, galvanized pipes use sacrificial zinc protection, but how long do galvanized pipes last depends on coating thickness and environmental pH. For harsh conditions, our stainless steel alternatives (304/316L) offer superior longevity.
Painting Galvanized Pipe: Best Practices
Can you paint galvanized pipe? Yes, but surface prep is critical:
- Degreasing: Remove oils with alkaline cleaners to ensure adhesion.
- Acid Etching: Use phosphoric acid (pH 3.5–4.5) to eliminate zinc oxides.
- Primer Selection: Epoxy-based primers bond securely to zinc layers.
- Topcoat Application: Acrylic or polyurethane finishes enhance UV resistance.
Why Choose Our Stainless Steel Solutions?
- Lifetime Durability: Chromium-nickel alloys (304/316L) resist pitting, crevice corrosion, and extreme temperatures (-200°C to 900°C).
- Hygienic Compliance: Non-reactive surfaces meet FDA/WHO standards for food, pharmaceuticals, and potable water.
- Eco-Friendly: 100% recyclable with minimal maintenance, reducing lifecycle costs by 40%.
- Certifications: ISO 9001, NSF, and Lloyd’s Register compliance ensure global reliability.
