Products Description
Galvanized Pipe for Greenhouse of Pre-galvanized steel pipe which is a type of steel pipe that has been coated with a layer of zinc through the process of galvanization before it is formed into a pipe shape. This coating helps to protect the steel from corrosion and rust. Galvanization is a process that involves coating steel with a layer of protective zinc. The steel is first cleaned and then dipped into a hot bath of molten zinc. This creates a bond between the steel and the zinc, creating a protective layer that is resistant to rust and corrosion. Pre-galvanized steel pipe is made from a combination of steel and zinc. The steel used in the pipe is typically low carbon steel, which is easy to shape and manipulate. The zinc used in the galvanization process is usually high-purity zinc, which provides superior corrosion resistance.



Galvanized Pipe for Greenhouse As we know, the galvanized steel pipe has been coated with a protective layer of zinc which provide strong protection against rust and more strength than other steel and iron tubing. The process of galvanizing is to remove the iron oxide from the surface of the steel tube by pickling, then putting it into an aqueous solution of zinc chloride or an aqueous solution of ammonium chloride and zinc chloride, and then dipping it into a bath of molten zinc, or a zinc-rich electrolyte. The zinc reacts with oxygen to create zinc oxide layer that further reacts with carbon dioxide to create zinc carbonate to prevents corrosive substances from reaching the underlying steel or iron.
Products Specifications
| Thickness | 1.2-2.0mm |
| Length | 4m |
| Standard | GB, EN, BS, ASTM, JIS, etc. |
| Grade | Q235, Q238B, S275, S275jr, A53, st37, etc. |
| Application | Green House |
| Type | Galvanized Steel Pipe |
Products Advantages
Galvanized Pipe for Greenhouse there are several advantages to using pre-galvanized steel pipe over other types of steel pipes. One of the biggest advantages of pre-galvanized steel pipe is its resistance to corrosion. The zinc coating acts as a protective layer, preventing the steel from rusting and corroding. This makes pre-galvanized steel pipe an ideal choice for applications that require durability and long-term performance. Another advantage of pre-galvanized steel pipe is that it is more affordable than other steel pipe coatings. The galvanization process is relatively simple and cost-effective, making pre-galvanized steel pipe an affordable option for many different applications. Pre-galvanized steel pipe also lasts longer than untreated steel pipe. The zinc coating provides a layer of protection that helps to prevent corrosion and rust, which can significantly extend the lifespan of the pipe.
Products Details
| Pipe Diameter (mm/inch) | Wall Thickness (mm) | Use Case |
|---|---|---|
| 25mm (1") | 1.5mm – 2.0mm | Small hobby greenhouses |
| 32mm (1.25") | 2.0mm – 2.5mm | Medium-sized greenhouses |
| 48.3mm (1.9") | 2.5mm – 3.2mm (Sch40) | Large commercial greenhouses |
| Square Tubing (25x25mm) | 1.5mm – 2.0mm | Sleek, modern designs |
Typical Lengths Available
6 meters (standard)
Custom cuts (available at some suppliers)
Why
Why Use Galvanized Pipes for Greenhouses?
✔ Corrosion-resistant (zinc coating protects against rust).
✔ Strong & durable (supports plastic, polycarbonate, or glass panels).
✔ Easy to assemble (can be welded, bolted, or clamped).
✔ Affordable (cheaper than aluminum or stainless steel).
FAQ
Q1: How long do galvanized pipes last in a greenhouse?
✅ 10-20 years (depending on thickness, coating quality, and exposure to salt/humidity).
Q2: Can I weld galvanized pipes for a greenhouse?
✔ Yes, but with caution – Galvanized coating releases toxic fumes when welded. Use proper ventilation or grind off the coating before welding.
Q3: What's better for greenhouses – round pipes or square tubing?
Round pipes = Cheaper, easier to bend.
Square tubing = More rigid, better for modern designs.
Q4: How do I prevent rust on greenhouse pipes?
✔ Choose hot-dip galvanized pipes (better than electroplated).
✔ Apply anti-rust paint if scratches expose bare metal.
✔ Avoid saltwater exposure (near coastal areas).
Q5: Can I use used galvanized pipes for a greenhouse?
✅ Yes, but inspect carefully – Check for deep rust, dents, or weak spots.

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We have exported to these countries and so on
Philippine
Vietnam
Indonesia
Algeria
Brazil
Chili
Mozambique
Togo
Ghana
Burkina Faso
South Africa
Uruguay
Our Service Processes
Phone/wechat/whatspp: 0086-15822491526
Pre-sales Consultancy
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Confirmation of order
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Production
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Multi-Channel Shipping
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Confirmation of recei
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After-sale Services
6
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