Differences Between Precision Steel Pipes and Seamless Steel Pipes

Precision steel pipes and seamless steel pipes are two commonly available steel pipe products in the market. While they share some similarities, they also have distinct differences.

Seamless Steel Pipes:

Key Feature: Seamless steel pipes are characterized by their lack of welded seams, which allows them to withstand high pressure.
Product Forms: They can be rough as-cast or cold-drawn.

Precision Steel Pipes:

Recent Development: Pipes are a relatively new product, known for their strict tolerances and surface finish on both the inner and outer walls.
Pipes are high-precision, seamless steel tubes that have been processed through cold rolling. These pipes are distinguished by their bright, smooth surfaces both inside and out. 

Key Attributes

No Oxidation Layer: The inner and outer walls are free from oxidation.
High Pressure Resistance: They can withstand high pressure without leaking.
High Precision and Smooth Finish: Pipes offer excellent accuracy and a high-quality surface finish.
Cold Bending: They do not deform during cold bending processes.
No Cracks During Expanding or Flattening: The pipes can be expanded or flattened without cracking.

Characteristics

Smaller Outer Diameter: Pipes typically have a smaller outer diameter.
High Precision for Small Batch Production: They can be manufactured with high accuracy in small batches.
High Accuracy and Surface Quality of Cold-Drawn Products: Cold-drawn precision steel pipes offer excellent precision and surface quality.
Complex Cross-Sections: These pipes can have more complex cross-sectional shapes.
Superior Performance and Dense Metal: Pipes exhibit superior performance and a denser metal structure, making them suitable for manufacturing mechanical structures, hydraulic components, and automotive parts.

Applications

Due to their high precision and excellent mechanical properties, precision steel pipes are primarily used in the production of pneumatic and hydraulic components such as cylinders and oil cylinders. They can also serve as seamless tubes for various high-precision applications.