High-Quality Hot-Dip Galvanized Steel Pipes
Durable, Corrosion-Resistant, and Versatile – The Best Solution for Your Plumbing, Structural, and Industrial Needs
Material: 10#, 20#, 45#, 16Mn, A53(A,B), Q195, Q215, Q235, Q345, St37, St42, St52, ST35, etc.
Grade: 10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52, Grade A/B/C
Standard: API 5L, ASTM A53, ASTM A671, ASTM A252, BS 1387, EN10219, GB/T 3091, etc.
Wall Thickness: 1MM~12MM
Outer Diameter: 20MM~508MM
Length: 5m-14m (Common sizes: 5.8m, 6m, 10m-12m, 12m) or customized
Product Overview
Hot-dip galvanizing is a process in which steel pipes are immersed in molten zinc to form a robust, protective coating. This thick layer of zinc bonds to the steel, creating a shield that not only prevents rust but also ensures the pipes can withstand harsh environmental conditions. Whether your project is exposed to moisture, chemicals, or extreme temperatures, our hot-dip galvanized pipes are the ideal choice for long-lasting performance.
Hot-Dip Galvanized Steel Pipes – Technical Parameters
| Parameter | Description |
| Coating Type | Hot-Dip Galvanized (Zinc Coating) |
| Zinc Coating Thickness | 40 – 100 microns (customizable based on requirements) |
| Pipe Sizes | 1/2″ to 12″ (Custom sizes available) |
| Length | 6m, 12m standard (custom lengths available) |
| Pressure Rating | PN10, PN16 (custom pressure ratings available) |
| Pipe Standard | ASTM A53, ASTM A500, ASME B36.10M, EN 10255 |
| Corrosion Resistance | Excellent for outdoor and marine environments |
| Temperature Range | -50°C to 150°C (depending on application) |
| Weight | Varies by size, typically 4-8 kg/m for standard sizes |
| Surface Finish | Smooth, shiny galvanized coating with uniform coverage |
| Threading Options | BSPT, NPT, and custom threading options available |
| Surface Treatment | Hot-dip galvanized, PVC coating, Painting, Oiled, Customizable |
| Application | Construction, Greenhouse, Fluid Transport, Scaffolding |
| Packaging | Bundled, palletized, or customized packaging options |
Common Applications for Hot-Dip Galvanized Pipes
Water Distribution Systems: Ideal for use in outdoor water supply lines and irrigation systems.
Plumbing: Hot-dip galvanized pipes are a traditional choice for plumbing, offering excellent durability and rust resistance.
Structural Steel: Used in construction projects for both temporary and permanent structural applications.
Fencing and Railings: Provides strength and weather resistance for gates, fences, and railing installations.
Electrical Conduit: Protects electrical wiring in outdoor and industrial environments.
Structural Steel
Railing
Fences
Irrigation Systems
Construction
Plumbing
What are the differences between Hot-Dip Galvanized Steel Pipes and other Pipes?
| Feature | Hot-Dip Galvanized Pipe | Electro-Galvanized Pipe | Stainless Steel Pipe | Aluminum Pipe |
| Corrosion Resistance | Excellent (thick zinc coating for long-lasting protection) | Good (thinner zinc coating, less durable than hot-dip) | Excellent (high resistance to rust and corrosion in most environments) | Very good (resistant to oxidation, especially in atmospheric conditions) |
| Lifespan | 40-50 years (depends on environment) | 10-20 years (depends on coating thickness) | 50+ years (very durable in harsh environments) | 20-30 years (depends on environment and exposure) |
| Strength | High (strong and durable under pressure) | Moderate (weaker than hot-dip galvanized) | Very high (great strength-to-weight ratio) | Moderate (lighter but can bend under high pressure) |
| Weight | Medium (heavier than electro-galvanized, lighter than stainless steel) | Light (thin coating makes it lighter) | Heavy (dense material) | Light (significantly lighter than steel) |
| Cost | Moderate (competitive pricing for long-term use) | Low (cost-effective but less durable) | High (premium material, expensive) | Moderate to High (dependent on alloy and processing) |
| Durability | Very durable (ideal for outdoor, industrial, and marine applications) | Moderate durability (better for indoor applications) | Extremely durable (corrosion-resistant, high tensile strength) | Fair (resistant to corrosion but softer and can dent or scratch easily) |
| Maintenance | Low (requires minimal maintenance after installation) | Moderate (needs more attention as the coating wears off) | Very low (long-lasting, minimal maintenance needed) | Low (light maintenance, especially for exterior protection) |
| Applications | Plumbing, structural, agricultural, fencing, outdoor/industrial use | Indoor plumbing, furniture, low-stress applications | Plumbing, industrial, food processing, medical, high-stress applications | Lightweight structures, plumbing, aircraft, and automotive industries |
| Surface Finish | Rough, with a dull gray finish | Smooth, shiny, uniform finish | Smooth, shiny, metallic finish | Smooth, bright, shiny finish |
| Weldability | Good (can be welded with proper precautions) | Good (easier to weld than hot-dip) | Excellent (can be welded easily) | Moderate (can be difficult to weld, requires special techniques) |
| Environmental Impact | Moderate (steel with zinc, recyclable) | Moderate (electroplating uses energy, but recyclable) | Low (highly recyclable and durable) | Low (lightweight, recyclable, energy-efficient production) |
| Thermal Conductivity | Low (poor conductor of heat) | Low (thinner coating affects conductivity) | High (excellent conductor of heat) | High (excellent thermal conductivity) |
| Heat Resistance | Moderate (can withstand temperatures up to ~150°C) | Moderate (limited by thin zinc coating) | Very high (can withstand temperatures up to 800°C or more) | Moderate (typically withstands temperatures up to 200°C) |
| Flexibility | Low (brittle in extreme conditions) | Moderate (more flexible than hot-dip) | Low (rigid and not flexible) | High (lightweight and flexible) |
Why Choose Gengfei Steel’s Hot-Dip Galvanized Pipes?
Superior Corrosion Resistance: The galvanizing process gives our steel pipes an excellent defense against corrosion, making them highly effective for outdoor, industrial, and marine applications.
Long Lifespan: Our galvanized pipes are built to last, even in the harshest conditions. With proper maintenance, these pipes can last decades, saving you money on replacements and repairs.
High Strength and Durability: Made from high-quality steel, our hot-dip galvanized pipes offer robust strength and structural integrity for demanding applications.
Wide Range of Applications: Whether for plumbing, construction, agricultural systems, or even fencing, our pipes are versatile and suitable for a wide variety of industries.
Eco-Friendly: Galvanizing helps extend the life of the steel, which means fewer resources are needed to replace pipes. Additionally, the zinc coating is non-toxic and environmentally friendly.
Cost-Effective: While the initial investment may be higher than uncoated steel, the long-term durability of galvanized pipes leads to significant cost savings in maintenance and replacements.
