Thick wall seamless steel pipe is usually used in coal, mechanical processing and other industrial fields. This kind of seamless steel pipe is mainly cold drawn and hot rolled two kinds. There are five types of classification, namely hot rolled thick wall seamless steel pipe, cold drawn thick wall seamless steel pipe, cold rolled thick wall seamless steel pipe and extruded thick wall seamless steel pipe and pipe jacking.

In the actual trading environment, the quality of thick wall seamless steel pipe is uneven, there are a lot of fake and shoddy thick wall seamless steel pipe, this article is to introduce how to identify these fake and shoddy thick wall seamless steel pipe.

1. Fake and shoddy thick-walled steel pipes are prone to folding. 

2. The appearance of shoddy thick wall steel pipes is often pockmarked.

3. The surface of shoddy thick wall steel pipe is prone to scarring.

4. Cracks are easy to occur on the surface of shoddy materials.

5. Shoddy steel pipe with thick wall is easy to scratch.

6. Shoddy thick wall steel pipes have no metallic luster and are light red or similar to pig iron.

7. The transverse bar of shoddy steel pipe with thick wall is thin and low, and the phenomenon of filling is often appeared.

8. The cross section of shoddy thick wall steel pipe is oval.

10. The material of shoddy thick wall steel pipe contains more impurities and the density of steel is small.

11. The inside diameter of shoddy thick wall steel pipe fluctuates greatly.

12. The quality of the logo and printing are more standard.

13. The manufacturer of shoddy thick wall steel pipe has no truck, so the packaging is loose. The sides are oval.

Large-caliber steel pipe is our company’s advantage product. The specifications we can make are shown in the figure below: