Cost-Effective Carbon Steel Welded Tube Supplier | ERW Steel Pipes | Full Size Range & Cut-to-Length
Outer Diameter： 10–300mm,according to customer requirements
Thickness： 4–100mm,according to customer requirements
Length： Normal 5.8m, 6m ,random length can be customized
Surface：Bare, Black Painted, Varnish Coating, galvanized etc.
Standard：ASTM，AISI，JIS,GB， DIN,EN
Products can be customized
Email: [email protected]
WhatsApp/WeChat/Mobile：+86-18753135285
Carbon steel welded Tube performance parameters
| Product Name | Carbon steel welded Tube |
|---|---|
| Material | Q195.Q215.Q235.Q355, Gr.A, Gr.B, S235-JRH, STK400, STK500 |
| Model | Outer Diameter: 10~300mm, according to customer requirements |
| Thickness: 4~100mm, according to customer requirements | |
| Length: Normal 5.8m, 6m, random length can be customized | |
| Standard | GB_ASTM AISI JIS |
| Place of Origin | Shandong, China |
| Delivery time | 7-15 days |
| Surface finishing | Bare, Black Painted, Varnish Coating, galvanized etc. |
| Certificate | ISO 9001, ISO14001, ISO45001, ISO50001, CE, LR, ICC, SGS, BV etc. |
| Supply capacity | 20,000 tons/year |
| MOQ | 1 ton |
| Trade Terms | FOB, CIF, CFR, EXW, FCA, FAS, etc. |
| Payment | TT, LC, We can negotiate |
| Tests | squash test, extension test, hydrostatic test, crystal decay test, heat resistance |
| Application | Steel Structure Scaffolding, Fence, Conduit, Greenhouse, Decorative pipe, Post, Roofing |
| Advantages |
1. Quick Respond 2. Reasonable Price 3. Abundant stock and prompt delivery 4. Flexible payment terms 5. Rich experiences in manufacturing and exporting 6. Excellent Quality |
Advantages of Our Carbon steel welded Tube
Superior Cost-Effectiveness and Large-Scale Supply
Thanks to efficient continuous roll-forming and automated welding processes, our carbon steel welded tubes have a significant advantage in production efficiency, meeting bulk procurement needs at highly competitive prices. Compared to seamless tubes, they provide a more economical raw material solution for building frames, fencing, and general manufacturing while ensuring structural strength.
Precise Dimensional Tolerances and Highly Customizable Specifications
Our welded tubes are made from high-precision cold-rolled or hot-rolled steel strips, ensuring extremely stable wall thickness tolerances and outer diameter accuracy. Due to the flexibility of the manufacturing process, we can customize specific diameters, thicknesses, and cut-to-length sizes to perfectly fit precision assembly requirements on automated production lines.
Excellent Weldability and Secondary Processing Adaptability
Made from premium low-carbon steel, our carbon steel welded tubes feature outstanding weldability, facilitating further structural connections on-site. The tubes offer good toughness and ductility, supporting various secondary processes such as bending, flaring, swaging, and punching without seam cracking. They are widely used in furniture, racking, and automotive components.
Packaging style of Carbon steel welded Tube
FAQs
Is the weld seam the weakest part? Will it burst under high pressure?
Our welded tubes utilize advanced ERW (Electric Resistance Welding) technology, ensuring the weld strength is virtually identical to the base metal. Each tube undergoes rigorous online eddy current testing or hydrostatic testing before leaving the factory, ensuring no leakage or cracking within the specified pressure range, making them fully capable for structural support and low-pressure fluid transport.
Will the weld seam crack during 90-degree bending or flaring processes?
We select premium low-carbon steel strips with excellent ductility as raw materials. As long as correct processing techniques are used (e.g., placing the weld seam on the side rather than the tension surface during bending), our tubes support large-angle bending, flaring, and swaging without seam failure, making them ideal for furniture frames and automotive parts.
How long can black pipes (uncoated) be stored without rusting? Do you offer pre-galvanized options?
The surface of black pipes is typically coated with anti-rust oil, allowing for 3-6 months of storage in dry indoor environments. If you have higher anti-corrosion requirements, we offer pre-galvanized welded tubes, which provide long-lasting rust protection suitable for direct outdoor exposure.
Will the internal weld bead protrusion affect my telescoping or sleeve installation?
By default, welded tubes have a slight internal weld bead. If your application involves telescoping (such as extension poles), we can provide internal bead removal services to ensure a smooth and flat inner wall for seamless and obstruction-free telescoping.
Since seamless tubes perform better, why should I choose welded tubes?
Cost-effectiveness is the core advantage. In scenarios where pressure requirements are not extreme (e.g., furniture, construction structures, general fluid transport), welded tubes cost 20%-40% less than seamless tubes. Furthermore, welded tubes offer more uniform wall thickness, longer single lengths, and a wider range of customizable specifications.
Ready to Secure Your Next Project?
Whether you need a bulk wholesale quote or a custom engineering solution, our technical team is here to help. Fill out the form and we will get back to you within 24 hours.