Pre-galvanized Round Steel Tube For Construction

● Product Introduction

Pre-galvanized Round Steel Tube For Construction is manufactured from high-quality low-carbon steel strip with advanced ERW welding technology and uniform pre-galvanized surface treatment. It features excellent rust resistance, high strength, smooth surface, precise dimensions, and easy installation, making it widely used in building structures, scaffolding, pipelines, fences, steel structures, and various engineering projects.

As a reliable structural material for global construction projects, our pre-galvanized round steel tube strictly complies with international standards such as ASTM A53, BS 1387, EN 10219, EN39, GB/T 3091, ensuring stable performance and long service life even in humid, outdoor, or coastal environments.

● Product Specifications & Parameters

● Advantages--What Purchasers Care About Most

1.Excellent Corrosion Resistance & Rust Proof

Uniform pre-galvanized coating provides long-term protection against oxidation and rust.Suitable for outdoor, rainy, and coastal construction environments.

2.High Structural Strength & Stability

High-quality steel material + stable welding ensure strong load capacity and safety performance.Ideal for scaffolding systems, support structures, and building frames.

3.Precise Dimensions & Easy Processing

Smooth surface, accurate size, easy to cut, bend, drill, and weld.Greatly improve construction efficiency and reduce labor cost.

4.Stable Quality & Consistent Performance

Full-process quality control ensures each batch has stable performance.Comply with ASTM A53, BS1387, EN10219 standards.

5.Long Service Life & Low Maintenance Cost

Durable structure reduces replacement frequency and overall project cost.

6.Environmentally Friendly & Safe

Non-toxic surface, no harmful substances, safe for construction use.

● Comprehensive Customization Service (OEM & ODM)

We focus on providing one-stop customization solutions to meet the unique needs of each customer, with professional R&D and engineering teams to support even the most complex custom requirements. Our customization capabilities cover all aspects of the product, ensuring it perfectly matches your project needs:

✅ Material Customization

- Custom material grades: Q195, Q235B, Q355B, S235JR, S355JR, ASTM A53 Gr.B, and special materials (e.g., stainless steel, alloy steel) for high-temperature, high-pressure, or corrosion-prone scenarios.

- Custom material thickness: According to project load requirements, adjust the base steel thickness to enhance structural strength or reduce cost.

✅ Size & Dimension Customization

- Outer Diameter (OD): Customizable from 12mm to 219mm (1/2” to 8”), beyond standard sizes to fit special equipment or project designs.

- Wall Thickness (WT): Customizable from 0.5mm to 4.0mm, with tight tolerance control (±0.05mm) for precision engineering projects (e.g., medical equipment frames, precision pipelines).

- Length: Customizable from 1m to 18m, including fixed length, random length, or cut-to-size according to on-site construction needs, reducing waste and installation time.

- Tolerance: Customizable to meet strict project requirements, such as aerospace, precision machinery, or high-end construction projects.

✅ Surface & Coating Customization

- Zinc Coating Weight: Customizable from 30g/m² to 275g/m². Light coating for general construction, heavy coating for coastal, humid, or chemical environments (salt spray test up to 2000 hours).

- Surface Finish: Customizable matte finish, bright finish, or anti-fingerprint finish to meet aesthetic or functional needs (e.g., landscape projects, indoor decoration).

- Additional Coating: Optional powder coating (custom colors), anti-rust oil coating, or epoxy coating to further enhance corrosion resistance or match project color schemes.

✅ Tube End & Processing Customization

- Tube End Treatment: Plain end, beveled end (for welding), threaded end (BSP, NPT, etc.) with socket & cap, grooved end (for quick connection), flanged end (for high-pressure pipelines), or expanded end (for easy assembly).

- Additional Processing: Custom drilling, punching, bending, or cutting according to project drawings, reducing on-site processing work and improving construction efficiency.

✅ Packaging & Marking Customization

- Packaging: Export standard packing (wooden pallets, steel strips, waterproof film), branded packing (print your company logo), or custom packing according to transportation requirements (e.g., seaworthy packing for long-distance shipping).

- Marking: Custom printing of product information (size, material, standard, batch number), company logo, or project name to facilitate project management and brand promotion.

✅ Customization Process & Support

1. 1. Inquiry: Provide your customization requirements (drawings, specifications, quantity, application scenario).

2. 2. Solution Design: Our engineering team provides professional suggestions and customized solution within 24 hours.

3. 3. Sample Production: Produce small-batch samples (free of charge, freight paid by buyer) for your test and confirmation.

4. 4. Mass Production: After sample confirmation, arrange production with strict quality control, and update production progress in real time.

5. 5. Inspection & Delivery: Conduct custom quality inspection according to your requirements, and arrange delivery with complete documents.

✅ Customization Cases

- Custom 168mm OD, 3.5mm WT pre-galvanized steel tube with heavy zinc coating (200g/m²) for a coastal bridge project in Australia.

- Custom 12m length, tight tolerance (±0.05mm) pre-galvanized tube for a prefabricated house project in Germany.

- Custom threaded end + powder coating (RAL 9006) pre-galvanized tube for a landscape fence project in the UAE.

● Service Guarantee Layer

1. 1. Quality guarantee: compensation for unqualified products confirmed by inspection.
2. 2. Full logistics tracking and real-time delivery updates.
3. 3. Complete export documents support.
4. 4. Response within 2 hours; problem solved within 24 hours.
5. 5. Long-term warranty and after-sales support for bulk orders.