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How to identify seamless pipes and welded pipes

Release time:

2023-12-01

Seamless steel pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, coal gas, water and certain solid materials.

Seamless steel pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, coal gas, water and certain solid materials. Compared with solid steel materials such as round steel, steel pipes are lighter in weight when subjected to the same bending and torsional strength. They are an economical cross-section steel and are widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, and bicycles. The use of steel pipes to manufacture ring-shaped parts such as steel frames and steel scaffolding used in construction can improve material utilization, simplify the manufacturing process, save materials and processing man-hours, and has been widely used in steel pipe manufacturing. The molding process is different. For example, water pipelines are generally welded by steel plates. After welding, a weld can be found on it; the diameter of the weld is generally a spiral weld. Seamless steel pipes are generally formed from the molten steel after passing through the circumferential seams, and are formed through processing techniques such as processing techniques, so there is no welding. In terms of performance, especially the bearing capacity is greatly improved compared with ordinary steel pipes, so it is often used in high-pressure equipment. Such as hydraulic equipment pipeline connections, etc. The welded part of ordinary steel pipes is the weak link, and the welding quality is the main factor affecting the entire performance. Anyone who has lived in the north has had the experience of water pipes or heating pipes in winter. The places where explosions occur are usually welded steel pipes and not seamless steel pipes.

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