Precision steel tube vs seamless steel tube

Precision steel pipe is a kind of high-precision steel pipe material processed by cold drawing or hot rolling, such as cold drawn precision seamless steel tube. Because the inner and outer walls of precision steel pipe have no oxide layer, withstand high pressure and no leakage, high precision, high smoothness, Cold bending is not deformed, flared, flattened without cracks, etc., so it is mainly used to produce pneumatic or hydraulic components, such as air cylinders or oil cylinders, which can be seamless pipes or welded pipes. The chemical composition of precision steel pipes includes carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, and chromium Cr.

Features of cold drawn precision steel pipe:

1. The outer diameter is smaller.

2. High precision can be used for small batch production

3. The cold-drawn (rolled) finished product has high precision and good surface quality.

4. The horizontal area of the steel pipe is more complicated.

5. The performance of the steel pipe is superior, and the metal is denser.

Seamless steel pipe is a round, square and rectangular steel with a hollow section and no joints on the periphery. Seamless steel pipes are made of steel ingots or solid tube billets through perforation into capillary tubes, and then made by hot rolling, cold rolling or cold drawing. Seamless steel pipes have a hollow section and are mostly used as pipelines for conveying fluids. Compared with solid steel such as round steel, steel pipes have the same bending and torsion strength and lighter weight. They are economical cross-section steels and are widely used in manufacturing structures. Parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolding used in construction.

The difference between precision steel pipe and seamless steel pipe

1. The main feature of seamless steel pipe is that it has no welded seam and can withstand greater pressure. The product can be rough cast or cold drawn parts.

2. Precision steel pipe is a product that has appeared in recent years, mainly because the inner hole and outer wall dimensions have strict tolerances and roughness.