
Steel Pipes and Tubes - Seamless, Welded, Alloy, Stainless, Galvanized & More
- Full range of steel pipe types: seamless, welded (ERW/LSAW/SSAW), alloy, stainless, galvanized, square & rectangular
- Outer diameter range: 13.7 mm to 3500 mm
- Wall thickness from 0.5 mm to 50 mm
- Length: 0.3 m to 23 m (fixed/customized/random length)
- Complies with global standards: ASTM A53, A106, API 5L, JIS, DIN, EN
- Material grades include Q195, Q235, 20#, GR.B, X42-X80, P11, P22, etc.
- End types: plain, beveled, threaded
- Applications: oil & gas, construction, water transmission, structure, fire protection, machinery
Supplied by Zhongbo against a confirmed source, grade and specification — request a quote with your material, standard, quantity, required certificates and destination.
✅ Product types include:
• Seamless Steel Pipe – ideal for high pressure and temperature
• Welded Pipe – ERW, LSAW, SSAW for standard and large diameters
• Carbon Steel Pipe – economic and versatile
• Alloy Steel Pipe – suitable for demanding mechanical conditions
• Galvanized Pipe – corrosion-resistant for outdoor and water lines
• Stainless Pipe – clean, rust-resistant for food, pharma, etc.
• Square/Rectangular – structural, decorative uses
• OCTG casing & tubing – for oilfield applications
✅ Broad specification range to meet your project needs.
✅ Contact us for technical customization or bulk pricing.
Specifications
Packaging & Shipping
Ports of Shipment: Tianjin Port, Qingdao Port, Shanghai Port
Lead Time: 15–20 working days
Packing Options:
✔️ Standard seaworthy packing: plastic film wrapping + woven bag/Hessian cloth, palletized if required
✔️ Customized labels and packing on request
✔️ Supports air freight, sea freight (FCL/LCL), and truck delivery
Zhongbo Steel ensures safe and reliable packaging to protect your products during transport and storage.
Sourcing & documentation
Zhongbo confirms the manufacturer or mill, material grade, origin, applicable standard, batch documentation and inspection scope with you before order acceptance.
What to include in your enquiry
- Application and required material / grade
- Dimensions, class or specification
- Applicable standard
- Quantity and delivery schedule
- Required certificates and inspection
- Destination port
Certificates & inspection
Mill or manufacturer certificates and batch documentation are provided according to the confirmed source. Third-party or pre-shipment inspection (SGS, Bureau Veritas, Intertek or a buyer-appointed agency) can be arranged when included in the order. See test reports & inspection.
Request a quote
Send your material, grade, standard, quantity and required documents, and we’ll reply with a quotation.
Get a QuoteTechnical documents
Download the product catalogue, or contact us for certificates and test reports.
Product catalogue (PDF)




