








Categories: Pipe
Seamless steel pipe is a kind of long section steel with hollow section and no joints around. It is a kind of economical steel, which is widely used as the pipeline for transporting fluid, such as oil, natural gas, gas, water and some solid materials.
| Keywords | Steel Pipe, Steel Tube, Seamless Steel Pipe |
| Section Shape | Round, Square, Rectangle |
| Standard | AP15L,GOST 10704,EN-10208-1/2,GB9711.1/2,ISO,BS1387,ASTMA53,GB 3091 |
| Thickness | 1.0 – 60mm, or as required |
| Length | 3m, 5.8m, 6m, 11.8m, 12m or as required |
| Outer Diameter | 21.3 – 711 mm, or as required |
| Tolerance | ±1% |
| Certification | ISO9001, CE, BVStandard Seaworthy Packing |
| Material | 10#, 20#, 45#, Q235, Q345,Q195, Q215, Q345B,Q345C, Q345A |
| ASTM A53A, A53B, A106A, A106B, API5L | |
| ST37, ST37-2, DIN 1629, ST35, ST45,DIN 17175, ST35.8, DIN 17175, 19Mn5 | |
| 16Mn, 15CrMo, Cr5Mo, 10CrMo910, 12CrMo, 13CrMo44, 30CrMo | |
| Technical Methods | Hot rolled, Cold rolled, Cold -drawing |
| Delivery Time | 10-15 Days |
| MOQ | 1Ton |
| Payment Term | TT /LC |
| Surface | black painting, anti-corrosion oil, galvanized or as per required by customer |
| Application | Widely used in Structure, Accessorize,Construction, |
| Fluid transportation,machinery parts,the stress parts of the automobile tractor parts and so on | |
| Packing | Standard Seaworthy Packing |
About Us
Tianjin Yunhao Supply Chain Management Co., Ltd., established in March 2023, is strategically located in Tianjin – a major industrial hub in Northern China and one of the world's top ten port cities. Situated just 120 kilometers from Beijing, our coastal position in the Bohai Sea region offers exceptional logistical advantages for serving both domestic and international markets. We specialize in supplying a comprehensive range of mid-to-high-end steel and aluminum products sourced from leading manufacturers.
© 2025 by Tianjin Yunhao Supply Chain Management Co., Ltd., All rights reserved