Complaint
| Product Name | Carbon steel seamless pipe |
| Standard | ASTM A106,ASTM A53,ASTM A335 |
| Wall Thickness | 8-20mm |
| Outer Diameter | 60-140mm |
| Length | 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques |
| Pipe Ends | Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc. |
| Surface Treatment | 1. Galvanized,bare 2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement |
The production process of hot-rolled seamless steel tubes generally includes the following steps:
1. Steel billet preparation: Steel billets are prepared through continuous casting or steel rolling production processes. The quality of the billets greatly affects the quality of the final product.
2. Sizing: The steel billets are fed into a heating furnace for heating, usually using a piercing mill to size the billets.
3. Piercing process: Inside the heating furnace, the steel billets are first pierced using a piercing tool. This step gradually reduces the cross-section of the billets and forms a hollow tube shape.
4. Rolling: After the piercing process, the billets are fed into a rolling mill for rolling. Through multiple passes, the billets are gradually rolled into the shape of seamless steel tubes.
5. Descaling: During the rolling process, a descaling tool is used to gradually remove the oxide scale formed during rolling.
6. Cooling: The finished seamless steel tubes need to be cooled, usually by water spraying or cooling liquid.
7. Cutting: The cooled seamless steel tubes are cut to the desired lengths according to customer requirements.
8. Inspection and packaging: The cut seamless steel tubes are inspected, mainly focusing on dimensions, appearance, and other aspects. Qualified seamless steel tubes are packaged and accompanied by quality certificates.
Please note that the specific production process may vary depending on different manufacturers and types of products. The above is a brief introduction to the general process, and the actual situation may be more complex and specific.
High precision: Hot-rolled seamless steel pipes have a smoother surface and better dimensional accuracy compared to cold-drawn seamless steel pipes.
Wide range of applications: Hot-rolled seamless steel pipes are widely used in various industries, such as construction, petroleum and natural gas transportation, mechanical engineering, and high-pressure boilers.
Good mechanical properties: Hot-rolled seamless steel pipes have excellent tensile strength, yield strength, and impact resistance, making them suitable for high-stress and high-temperature environments.
Cost-effective: Hot-rolled seamless steel pipes have lower production costs compared to cold-drawn seamless steel pipes, making them a more cost-effective choice for large-scale projects.
Availability of various sizes and grades: Hot-rolled seamless steel pipes are available in a wide range of sizes and grades to meet different application requirements. They are commonly produced according to standards such as ASTM A106 and ASTM A53 in the United States.
In summary, our hot-rolled seamless steel pipes have the advantages of high precision, wide application range, good mechanical properties, cost-effectiveness, and availability in various sizes and grades.
