Precision steel pipe is a high-precision steel pipe material processed by cold drawing or hot rolling. Since precision steel pipes have no oxide layer on the inner and outer walls, can withstand high pressures without leakage, have high precision, high smoothness, no deformation in cold bending, no cracks in flaring and flattening, etc., they are mainly used to produce pneumatic or hydraulic components, such as cylinders or The oil cylinder can be a seamless pipe or a welded pipe.
Precision steel pipe is a high-precision steel pipe material processed by cold drawing or hot rolling. Since precision steel pipes have no oxide layer on the inner and outer walls, can withstand high pressures without leakage, have high precision, high smoothness, no deformation in cold bending, no cracks in flaring and flattening, etc., they are mainly used to produce pneumatic or hydraulic components, such as cylinders or The oil cylinder can be a seamless pipe or a welded pipe.
Precision steel pipes have high dimensional accuracy, smooth inner and outer surfaces, no oxide film on the inner and outer surfaces after heat treatment, no cracks in expansion and flattening, no deformation in cold bending, and can withstand high pressure, and can be used for various complex deformations and deep mechanical processing. deal with.
National standard
National standard for precision steel pipes; GB/T699-2008, national standard for precision steel pipes; GB/T3639-2008. In addition, there may also be applications of GB/T8162-2008 structural precision steel pipes.
The European standard of precision steel pipe is: DIN2391
Basic use
Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, medium and low-pressure boiler seamless steel pipes, etc., and can also be used in steel sleeves, bearings, hydraulics, mechanical processing, etc. field!
Production Process
The production process of precision steel pipes is the same as that of ordinary seamless pipes, except that there is an additional final pickling and cold rolling process.
Precision steel pipe process flow
Tube blank - inspection - peeling - inspection - heating - perforation - pickling and passivation - grinding - lubrication and air drying - cold rolling - degreasing - cutting - inspection - marking - -Product packaging
Differences between steel pipes
1. The main feature of seamless steel pipe is that it has no welding seams and can withstand greater pressure. Products can be very rough as cast or cold drawn parts.
2. Precision steel pipe is a modern product, mainly because the inner hole and outer wall dimensions have strict tolerances and roughness.
National standard
National standard for precision steel pipes; GB/T699-2008, national standard for precision steel pipes; GB/T3639-2008. In addition, there may also be applications of GB/T8162-2008 structural precision steel pipes.
The European standard of precision steel pipe is: DIN2391
Basic use
Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, medium and low-pressure boiler seamless steel pipes, etc., and can also be used in steel sleeves, bearings, hydraulics, mechanical processing, etc. field.
Features
1. Smaller outer diameter.
2. High precision and can be used for small batch production.
3. The cold-drawn finished product has high precision and good surface quality.
4. The cross-sectional area of the steel pipe is more complex.
5. The performance of steel pipe is superior and the metal is denser.
3. The cold-drawn finished product has high precision and good surface quality.
4. The cross-sectional area of the steel pipe is more complex.
5. The performance of steel pipe is superior and the metal is denser.
