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Help CenterGalvanized Steel Pipe for Greenhouse Frame Construction Hot Dipped Q235 48mm OD
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Hemaokang Steel (Shandong) Co., Ltd., established in 2025 and headquartered in Liaocheng, Shandong, China, is a professional manufacturer and exporter of steel products with an annual export value of US$50 Million – US$100 Million. Our Galvanized Steel Pipe for Greenhouse Frame Construction Hot Dipped Q235 48mm OD is engineered to provide superior strength, corrosion resistance, and long service life for agricultural and commercial greenhouse structures. Designed with a hot-dipped galvanized coating, this pipe meets international quality standards and is widely trusted by customers across North America, South America, Europe, and beyond.
This high-quality pipe is manufactured from Q235 carbon steel and undergoes strict hot-dip galvanizing to ensure uniform zinc coating both inside and outside, offering excellent protection against rust and harsh weather conditions. With an outer diameter of 48mm and customizable wall thickness and length, it adapts perfectly to various greenhouse frame designs. Whether you are constructing a multi-span greenhouse, tunnel greenhouse, or open-field support structure, our product delivers the stability and reliability your project demands.
Key Features & Technical Specifications
- Material: Premium Q235 carbon steel ensures high tensile strength and ductility, capable of bearing heavy loads and withstanding bending during installation.
- Hot-Dipped Galvanization: Achieves a thick, uniform zinc coating (average 80–100 microns) that provides exceptional anti-corrosion performance, extending service life by decades in outdoor environments.
- Precision Dimensions: Outer diameter of 48mm with strict tolerance (±0.5mm), ensuring compatibility with standard greenhouse fittings and connectors.
- Customizable Options: Available in wall thicknesses from 1.5mm to 4.0mm, and lengths from 3m to 12m (or as required). Both ends can be threaded, grooved, or plain according to your specifications.
- Easy Installation: Smooth surface and consistent roundness simplify cutting, welding, and connecting, reducing on-site labor costs.
- Eco-Friendly: Hot-dip galvanizing is a sustainable process with minimal environmental impact; the pipes are 100% recyclable.
| Parameter | Value |
|---|---|
| Outer Diameter (OD) | 48 mm |
| Wall Thickness (optional) | 1.5mm / 2.0mm / 2.5mm / 3.0mm / 4.0mm |
| Standard Length | 6 meters (custom lengths available) |
| Material Grade | Q235 (equivalent to ASTM A36) |
| Zinc Coating Weight | 80–100 g/m² (hot-dipped) |
| Tensile Strength | ≥ 370 MPa |
| Yield Strength | ≥ 235 MPa |
| Elongation | ≥ 20% |
| Surface Treatment | Hot-dip galvanized (bright or matte finish) |
| End Finish | Plain / Threaded / Grooved (customizable) |
| Packing | Bundled with steel straps, waterproof covering for sea shipment |
Customer Benefits
Choosing our galvanized steel pipe for your greenhouse frame ensures you receive:
- Long-Term Durability: The hot-dipped zinc layer protects against rust, even in high humidity or chemical fertilizer environments, reducing maintenance costs.
- Structural Integrity: Q235 steel combined with precise manufacturing guarantees the frame can withstand heavy snow loads, strong winds, and daily operational stress.
- Cost Efficiency: Competitive pricing from our factory direct supply eliminates middlemen, and our bulk production capability ensures stable delivery.
- Worldwide Shipping: Shipped from Qingdao Port with professional export packaging, we serve customers in over 20 countries across all major markets.
Trust & Reliability
Hemaokang Steel (Shandong) Co., Ltd. is a company with an annual export value of US$50 million to US$100 million and a team of 51–100 experienced professionals. We hold ISO9001 certification, ensuring our production and quality control systems meet international standards. Every shipment undergoes rigorous inspection, including dimensional checks, zinc coating thickness test, and tensile strength test. Located in Liaocheng, a major steel hub in China, we benefit from a well-established supply chain and can fulfill large orders on time. Our main markets include North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. We invite you to contact us for competitive quotes, free samples, or technical consultation. Let our galvanized steel pipes support your greenhouse project from foundation to harvest.
Frequently Asked Questions (FAQ)
1. What is the difference between hot-dipped galvanized and electro-galvanized pipes?
Hot-dipped galvanized pipes have a thicker zinc coating (typically 80–100 microns) and provide superior corrosion resistance, making them ideal for outdoor greenhouse frames. Electro-galvanized pipes have a thinner coating and are better for indoor or low-corrosion applications.
2. Can I get custom lengths and wall thicknesses?
Yes, we offer customization for wall thickness (1.5mm–4.0mm) and length (3m–12m or as requested). Please discuss your requirements with our sales team to ensure optimum cost and performance.
3. How do you ensure the pipes are straight and round?
We use advanced straightening and sizing equipment during production. Each pipe is inspected for straightness and roundness before leaving the factory, ensuring compatibility with standard greenhouse fittings.
4. Are these pipes suitable for high-humidity or coastal areas?
Absolutely. The hot-dipped galvanized coating provides excellent protection against moisture and salt spray. For extremely corrosive environments, we can apply additional anti-corrosion treatments upon request.
5. What is the minimum order quantity (MOQ)?
Our MOQ for standard sizes is typically 5 tons. For custom specifications, MOQ may vary. We are flexible for trial orders and sample requests.
6. Do you provide technical support for greenhouse frame design?
Yes, our engineering team can assist with load calculations, joint recommendations, and overall frame design to ensure safety and stability. Contact us for detailed guidance.
7. How long does delivery take?
Delivery time depends on order quantity and customization. For standard 48mm pipes, production usually takes 7–15 days after order confirmation. Sea freight from Qingdao port to major global destinations typically takes 20–40 days.
8. What certifications do your products have?
Our products are manufactured under an ISO9001 quality management system. We can provide mill test certificates and third-party inspection reports upon request.
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