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High-quality carbon steel pipes are designed for scaffolding, formwork support, and general structural construction. Manufactured from Q235, Q345, and Q355B grades, these pipes offer excellent yield strength (≥235–355 MPa) and superior load-bearing performance.
To ensure the long-term durability of our pipes, we offer a variety of surface treatments, including hot-dip galvanizing (zinc layer thickness ≥ 80–120 μm, providing rust protection for over 10 years), cold-dip galvanizing, and painting, giving you the flexibility to choose the best solution for your project environment.
Each pipe is manufactured under strict dimensional tolerances (outer diameter tolerance ≤ ±0.5 mm), ensuring smooth assembly with scaffolding systems such as loop, cup, and frame scaffolds. Our pipes have been proven to last 3–5 times longer than untreated pipe, helping to improve site safety while reducing overall maintenance costs.
Yield Strength ≥ 235–355 MPa (Q235/Q345/Q355B). Higher load-bearing capacity, reducing the risk of bending, deformation, or failure.
Hot-dip galvanized zinc layer ≥ 80–120 μm. Rust-resistant life of over 10 years, suitable for outdoor and harsh environments.
Outer diameter tolerance ≤ ±0.5 mm, wall thickness tolerance ≤ ±0.3 mm. Ensures perfect compatibility with clasp, cup, and portal scaffolding for smooth installation.
Lifespan 3–5 times longer than ordinary black pipe. Can be reused multiple times, reducing total project costs.
Compliant with EN39, BS1139, JIS G3444, and GB/T 3091. Easy to export and declare, globally recognized.
Optional lengths 1.0–6.0 m, wall thickness 2.5–4.0 mm. Supports OEM/ODM to meet diverse project needs.
Reduces replacement frequency and maintenance costs. Improves construction efficiency and project safety.
| Outer Diameter | Wall Thickness | Length | Weight | Zinc Coating | Standard |
|---|---|---|---|---|---|
| 48.3 mm (1.5") | 1.5 mm | 6 m/ 19.7 ft | 2.2 kg/m | ≥200 g/m² (Hot-dip) | BS1139/EN39 |
| 48.3 mm (1.5") | 2.0 mm | 6 m/ 19.7 ft | 2.7 kg/m | ≥200 g/m² (Hot-dip) | BS1139/EN39 |
| 48.3 mm (1.5") | 2.5 mm | 6 m/ 19.7 ft | 3.4 kg/m | ≥200 g/m² (Hot-dip) | BS1139/EN39 |
| 48.3 mm (1.5") | 3.2 mm | 6 m/ 19.7 ft | 4.2 kg/m | ≥200 g/m² (Hot-dip) | BS1139/EN39 |
| 48.3 mm (1.5") | 4.0 mm | 6 m/ 19.7 ft | 5.1 kg/m | ≥200 g/m² (Hot-dip) | BS1139/EN39 |
| 60.0 mm(2.36") | 2.0 mm | 6 m/ 19.7 ft | 3.4 kg/m | ≥200 g/m² (Hot-dip) | EN10240/ASTM A53 |
| 60.0 mm(2.36") | 2.5 mm | 6 m/ 19.7 ft | 4.2 kg/m | ≥200 g/m² (Hot-dip) | EN10240/ASTM A53 |
| 60.0 mm(2.36") | 3.2 mm | 6 m/ 19.7 ft | 5.3 kg/m | ≥200 g/m² (Hot-dip) | EN10240/ASTM A53 |
| Custom Size | As request | Up to 12 m | As request | 120-600 g/m² | ASTM /EN /JIS |
Project Overview:
Nanjing Riverside Commercial Complex is a 52-story mixed-use high-rise building integrating office, retail, and residential functions. Over 6,800 galvanized steel pipes were supplied for scaffolding and formwork support.
Key Achievements:
A: Our steel pipes comply with international standards such as EN39, BS1139, JIS G3444, and GB/T 3091, ensuring smooth use and customs clearance in global markets.
A: Hot-dip galvanizing has a thicker zinc layer (≥80–120 μm), offers a rust-proof lifespan of over 10 years, and is suitable for outdoor and long-term projects. Cold-dip galvanizing has a thinner zinc layer (10–30 μm), is more economical, and is suitable for indoor or short-term use.
A: Yes, we can cut pipes from 1.0–6.0 m in length. We can also customize wall thicknesses and special specifications based on project drawings to meet diverse project requirements.
A: Each batch of steel pipe undergoes chemical composition testing, mechanical property testing, dimensional tolerance testing, and surface inspection. Only after 100% quality inspection is passed can it be shipped.
A: Standard specifications are in stock and can be shipped within 3–7 days. Large-volume custom orders typically take 15–25 days to deliver.
A: Yes, we can provide samples for customer testing. Sample fees are refundable in some regions.
