---

　　The steel pipe made of a piece of metal, without a joint on the surface, is called the seamless steel pipes.

　　1, Observe the marks and specifications on the steel pipe and the related information.

　　2, when buying seamless steel pipe, we should observe whether there are cracks, scars, etc. on the surface of the steel pipe.

　　3, observe the surface of the seamless steel pipe is uniform.

　　The main feature of API Hot-Rolled Seamless Steel Pipe is no welding joint, which can bear greater pressure. The product can be a very rough cast or cold dial

　　Thick walled seamless steel pipe with good quality is uniform in composition, in the cutting head look very neat, smooth feeling is a kind of feeling, rather than a burr thorn in hand feeling. So if it is incomplete information, in the cutting head is rugged, and all steel looks dull. If it is a fake thick wall seamless steel pipe, so the color will have very significant, showing a light red color, and defective thick walled seamless steel pipe in temperature is not up to the standard.

---

Previous: Corrosion Resistance of Hot Dipped Galvanized Steel Pipes
Next: none

---