Cold drawn precision seamless steel pipe is a precision cold drawn seamless pipe with high dimensional accuracy and good surface finish used for mechanical structures and hydraulic equipment. Selecting precision seamless pipe to manufacture mechanical structures or hydraulic equipment can greatly save machining time, improve material utilization, and help improve product quality.





Cold-drawn precision seamless pipes and ordinary seamless pipes are two common pipes. They have certain differences in manufacturing process, performance characteristics and applicable fields. The following will specifically introduce the differences between the two seamless pipes:
1. Different manufacturing process:
Cold-drawn precision seamless pipes are made by cold drawing process. During the production process, they must undergo multiple drawing and cold drawing processes to ensure that the internal structure of the pipe is uniform, the surface finish is high, and the size is accurate. Ordinary seamless pipes are usually produced by hot rolling or hot extrusion process. The manufacturing process is relatively simple and the cost is low.
2. Different dimensional accuracy:
The dimensional accuracy of cold-drawn precision seamless pipes is high, and the inner and outer diameter dimensions are controlled within a small tolerance range, which can meet the occasions where the engineering requires high dimensional accuracy. The dimensional accuracy of ordinary seamless pipes is relatively low, and the inner and outer diameter dimension tolerances are large.
3. Different surface finish:
The surface finish of cold-drawn precision seamless pipes is very high, there is no oxide layer, oxide scale and other contaminants on the surface, and the appearance is bright. The surface finish of ordinary seamless pipes is low, and there may be defects such as oxide scale and stains on the surface.
4. Different mechanical properties:
Due to the uniform internal structure and fine grain size of cold-drawn precision seamless tubes, their mechanical properties are better than those of ordinary seamless tubes. Cold-drawn precision seamless tubes have higher strength, hardness and wear resistance, and can withstand greater pressure and impact.
5. Different application areas:
Cold-drawn precision seamless tubes are mainly used for the manufacture of high-precision and high-requirement mechanical parts, such as automobiles, aerospace, military and other fields. Ordinary seamless tubes are widely used in industries such as petroleum, chemical industry, shipbuilding, and electric power for conveying liquids, gases, solids and other media.
In general, cold-drawn precision seamless tubes have higher precision, finish and mechanical properties than ordinary seamless tubes, and are suitable for high-requirement engineering fields. Ordinary seamless tubes are suitable for occasions where general requirements are not too strict. When choosing to use, you need to choose according to specific engineering needs and requirements.