What is the difference between precision seamless pipe and ordinary seamless pipe?

Posted by chase Liu on June 8th, 2023

Seamless pipes have a hollow section and are widely used as pipes for conveying fluids, such as octg casing, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when the flexural and torsional strength is the same, and it is an economical section steel. Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolds used in construction, etc., use steel pipes to make ring parts. It can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing man-hours, and has been widely used in steel pipes.

Precision seamless pipe is a high-precision steel pipe after cold rolling or cold drawing. Due to the advantages of no oxide layer on the inner and outer walls of the precision seamless steel pipe, no leakage under high pressure, high precision, high finish, cold bending, flaring, flattening, no deformation, no cracks, etc.

1. The obvious difference between precision seamless pipes and seamless steel pipes lies in the high dimensional accuracy, which can reach 0.05mm.

2. The surface finish of the inner and outer diameters of precision seamless pipes is high, and users can use them directly without processing; ordinary seamless steel pipes need to be turned and polished

3. The outer diameter is small.

4. High precision, suitable for small batch production.

5. Cold drawn products have high precision and good surface quality.

6. The cross-sectional area of the steel pipe is relatively complicated

7. The performance of the steel pipe is superior, and the metal is compact.

8. Different steel pipe dimension

The outer diameter of ordinary seamless steel pipe is greater than 38mm, up to 1020mm.

Finish-rolled seamless steel pipes can be produced with smaller diameters, generally 6-200mm.

9. Different production execution standards