Precision spiral steel pipe is a high-precision steel pipe that has been cold drawn or hot rolled. Since there is no oxide layer on the inner and outer walls of precision spiral steel pipes, precision high-pressure steel pipes have no high pressure, no leakage, high precision, high smoothness, no cold deformation, flaring, flattening, no cracks, etc., and are mainly used to produce pneumatic or hydraulic components. . For example, cylinders or cylinders are made of seamless tubes. The chemical composition of precision spiral steel pipe is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr.
1. The main feature of spiral steel pipe is that it has no welded joints and can withstand greater pressure. The product can be a very rough casting or a cold drawn part.
2. Precision steel pipe is a product that has appeared in recent years, mainly due to strict tolerances and roughness of the inner and outer wall dimensions.
Characteristics of cold drawn precision steel pipes
1. Small outer diameter.
2. Can produce small batches with high precision.
3. Cold drawn products have high precision and good surface quality.
4. The cross-sectional area of the steel pipe is more complex.
5. The steel pipe has excellent performance and the metal is dense.
Implementation standards
GB/T3639
GB/T8713
DIN2391-2
HK15-2000
Steel pipe difference: the difference between precision steel pipe and spiral steel pipe
use
For the manufacture of mechanical structures, hydraulic equipment, automotive components
