Rectangular Structural Pipe ERW Q235 Carbon Steel for Greenhouse Frame

Engineered for Resilience: The Backbone of Modern Greenhouse Infrastructure
Our Rectangular Structural Pipe represents the pinnacle of intelligent design for agricultural construction. Specifically crafted from grade Q235 Carbon Steel using the Electric Resistance Welding (ERW) process, this pipe is the definitive choice for builders and growers who demand a framework that combines superior strength, long-term value, and unwavering reliability for greenhouse projects of any scale.

● Precision ERW Manufacturing: The ERW (Electric Resistance Welding) process we employ creates a seam that is as strong as the parent metal itself. This results in a pipe with excellent dimensional accuracy, consistent wall thickness, and a uniform profile that is crucial for easy and precise fabrication. Your construction process becomes faster, smoother, and more cost-effective.

● Built for the Demands of Agriculture: We understand that a greenhouse environment is one of constant humidity, temperature fluctuations, and exposure to chemicals. This pipe is designed to meet these challenges head-on. For ultimate corrosion resistance, we offer a pre-galvanized version, which applies a protective zinc coating to shield the steel from rust, drastically extending the lifespan of your investment and minimizing maintenance.

Service Life, Durability, and Maintenance

● Expected Service Life in Agricultural Settings: In the challenging environment of a greenhouse or agricultural building, our Pre-Galvanized RHS is engineered to provide a long service life.

1. Typical Greenhouse Lifespan: You can confidently expect 25+ years of structural service with minimal degradation, often outlasting the poly-film or glazing materials.

2. The zinc coating sacrificially protects the steel, meaning it will withstand minor scratches and abrasions without compromising the core material's integrity.

● Minimal Maintenance Regime: Forget the constant upkeep required by painted steel.

1. Routine Care: Simply rinse the structure periodically with water to remove dirt and chemical residues that can accumulate on the surface.

2. Damage Control: In the rare event of a deep scratch that exposes the base steel, it can be easily and effectively spot-repaired with a zinc-rich paint, restoring the protective barrier.

3. Application Channels

While specifically engineered for agriculture, the robustness of the 100x150mm section makes it versatile for numerous heavy-duty applications:

●  Primary Application: Agricultural Buildings

1. Commercial Greenhouses: (Gutter posts, primary and secondary structures for Venlo, wide-span, and multi-span designs).

2. Warehouse-Scale Polyhouses & Nursery Tunnels.

3. Barns, Livestock Shelters, and Equine Arenas.

4. Storage Sheds for Fertilizers and Equipment.

●  Industrial & Construction Applications:

1. Structural Columns and Beams for industrial warehouses, workshops, and factory buildings.

2. Heavy-Duty Support Structures for mezzanine floors and platforms.

3. Frame Construction for large industrial gates and hangar doors.

4. Steel Grade Customization:

● American Standard (ASTM): Gr. A, B, C, etc.

● European Standard (EN): S235, S275, S355, S420, S460, etc.

● Japanese Standard (JIS): SS400, STKR400, STKR490, etc.

● Chinese Standard (GB): Q195, Q235, Q355, etc.

● Canadian Standard (CSA): 300W, 350W, etc.

At Yuantai Derun, we take pride in delivering premium square steel pipes. To let you experience our excellence firsthand, we’re pleased to provide free samples (up to 20 cm in length), shipped directly to you via express air freight—with only the shipping cost on your end.
Why hesitate? Put our materials to the test and discover why Yuantai Derun stands out in quality and reliability. Request your sample today!

Yuantai Derun Square Steel Pipes – Quality Assured at Every Stage
From raw material sourcing to finished products, Yuantai Derun implements rigorous quality control at every step. We exclusively use traceable raw materials from reputable manufacturers, subjecting them to comprehensive inspections, including but not limited to:
●Dimensional & Visual Checks (appearance, size, straightness)
●Mechanical Testing (impact resistance, yield & tensile strength, hardness)
●Material Analysis (chemical composition, metallographic examination)
●Non-Destructive & Corrosion Testing (UT inspection, salt spray testing)
Contact us today to discuss your specific testing requirements—we ensure precision and reliability in every pipe.